302 swirl port heads. New posts Recent Posts Classifieds Search forums.

302 swirl port heads A buddy of mine wanted to beat my old street nova and brought me a set of 461's and those had cracks in them, so off he went to find more heads. Raise the compression and have a quench area and you will have a very screaming 318. freebird Discussion starter. The intake port in the 308&302's isn't that much different, so I believe too it's pretty much just a marketing hype. ;) (4323302) used from 1985 on are a swirl port design with a closed (heart-shaped) combustion chamber design with a chamber volume of between 56 and 65 cc. They are swirl port, 72cc, and designed with a 360 in mind. But my memory is refreshed - the swirl-port 318 heads are -302, and the 360 version is -308. I've personally cc'd and documented 1971 915 heads with . 5 10. MEASURED CHAMBER VOLUMES Head type, casting number, CCs FORD 302/351W, CASTING #E7TE-PA 62. Now to make some power with the 302 heads you drop in 360 valves and port the heck out of the heads, especially the bowl area. Not that I doubt him but I have heard different because of the larger valves 90 Dodge D150 with a rebuilt 318, Hughes Whiplash cam, 318 swirl port heads (port matched and bowl ported), 88 360 4bbl cast iron intake, and an AFB Competi FORD 5. 00 inch bore, and you can slap some pretty big heads on that motor Just a bowl port and polished the chambers etc like the swirl ports. CHEVY There really is no benefit though. Part Number: TFS-5171B016-C02. Engine is going into a rat rod 46 Chevy so it’s just something to have fun with. because they also have the shorty style intake port. 8 : 1 cr Reman heads were milled . DODGE 340/360 CASTING #3418915 66. The 302 heads only came with 1. The ports are a bit better, but probably won't be noticable on a daily driver. Nate Breece :gr_patrio 1994 B250 Ram Van Conversion by Elk 5. Thread starter 63dartman; Start date Aug 26, 2006 - Prev. Couple of questions: 1. I have a good 318 an I am trying to get the most I can from it. IMHO home ported and polished 318 heads on a 360 will only "restrict" rpm like BJR pointed out. If you want to make HP don’t waste your time with 318 heads I don’t care if they are “swirl port” heads or not. 88) and exhaust (1. sbc 305 and 350 engines that used the same swirl port make decent power so long as the exhaust and cam are modified. 50 valves stock, and to get good performance out of them you have to change to 1. toolmanmike A guy at Moparchat has 302 heads on a 340, but it is turbo. They feature a swirl port design and just the right size valves for your engine. 360 heads are open chamber @ aropund 70 cc or greater, 318 heads are a bit smaller and that is easy to see I have a little 318 that is totally stock and I have an opportunity to purchase a set of 302 swirl port heads for a reasonable price. 550" lift; exhaust flows approximately 170 cfm; at . between the 91 302 heads, and the early hipo 289 heads, you are going to have an increase in compression ratio with the hipo heads, but you will lose the high swirl combustion chambers from the 302 heads. 0L engine with the Ford Racing Turbo-Swirl GT40X Aluminum Head. Late 80's swirl port heads 302/714's. Oct 11, 2015 #26 The ports in the 302 head are shaped specifically to increase velocity. 88"/1. Increase the horsepower and torque output of your push rod 5. 010 milled off @ 71cc, 1990 302 heads milled . 542 lift, 106. I will be getting rid of some 302 swirl port heads that have gasket matched runners and enlarged valves. I'm about to pull the 318 for a 408. I am going to port match the intake and exhaust. Joined Aug 1, 2011 Messages 329 Reaction score 71 Location Torrance, CA. looking for a set of 302 swirl port heads for a 273 build,,what you got price and pics,,thanks sd426:burnout::burnout::burnout::burnout::burnout: Home. Stock 340/360 “J” head. TOO Many people get caught up in this 308/302 "magic Swirl port" head game. 94" intake; and 1. Hi, I have been searching for a start point for an ignition table for a 350 sbc with LO5 swirl port heads. I pulled the heads, gauged the crank and rods, inspected the cylinder walls, everything looked good. Im not an 302 casting heads are found on late 80s 318s. The 193s are fine for really low-rpm torque head for builds where emissions and mileage are concerned. 54" exhaust diameters; intake port volume 178cc. 00 or best offer plus shipping. Rating - 100%. Heads have had deck surface milled (now have 59. Yet a 302 has a 4. 50 inch valves and small ports averaging 54cc on the exhaust side and 118cc on the intake side. Joined Mar 13, 2007 Messages 252 Reaction score 0 Location Turner, Oregon. 0L/302 Cylinder Heads. They have the same combustion chamber as previous heads, the only difference is they are swirl port. Even the 62cc exhaust runners develop Both 170cc or 195cc intake-port volumes constitute 62cc I am looking for 318 swirl port heads. I know about the "302" castings' small combustion chamber size and the fact that it's swirl-port. Being you have ESC, whatever you do to a Ford 302, the 307 will respond very similar. 94"/1. If you use the search feature on the The swirl port heads were utilized through 1991 (302 casting) and 1992 (308 casting) and respond well to port and bowl work, offering better power potential than all of the earlier small-block 302 swirl port heads no burnt valves might need valves job, due to weight shipping would prob double price, local tx would b better $75 plus shipping 78130 TX 1 DavidLee Well-Known Member. Cheap cam compared to the rollers is what I was thinking. CHEVY 350, CASTING #336, (1971), MILLED . I put 360 valves in a set of '302 heads but havent' ran them yet. The new port design allowed for both substantial increases in midrange torque, and superior horsepower production under 8000rpm when compared with earlier heads. 6-61. -look to be in rebuild able shape . I have a cast crank. 302 Swirl port magnum heads asking $100 63020466 is casting number on them Also have set pair of 302 LA heads for mopar Message me! Marketplace. 50 valve size, but the 302 's also have swirl port tech. hi guys anyone used 318 swirlport head part n. They can be found on 318's with roller tappets, primarily in trucks. 015” 73 11. 78/1. My recommendation for you, if you want to make your power/fuel economy dreams come true, is find a set of '302 casting 318 heads in the JY. Heads were built to match the 400 Horsepower 318ci Hotrod magazine build (318 Small Block Build - How To - Hot Rod Magazine). 060 milled from the heads of a 360 to use on a 318 to over come the low compression ratio. Then each injector feeds a poppet valve at the port, for each port, connected by a length of hose. Jul 2, 2017 #2 can I get a quote to 87508 Bigboy 68 it is what it is. Most 302 heads are on pre-Magnum LA roller engines. A stock 318 with stock heads doesn't have port or valve size problems. The W9 aluminum head flows well out of the box (as-cast) and in a full CNC-port (shown). The Boss 302 suffered from bad pistons with skirts that cracked. 50 inch valves and small ports averaging 54cc on the exhaust side and 118cc on the intake side I want to use 302 heads on a 318 they have been rebuilt- my son says they are boat anchors others say keep em i want to run a cam up grade any thoughts Home. com use to sell them rebuilt and shipped for a good price I would give them a call and tell them you need 302 casting numbers or 714 for swirl port 318 heads Click to expand Kool, I will call on Monday ! I have it bored 30 over with a set of 10. I was looking at a write up on CCT web sit about the difference in the 3 heads, The swirl port has a 185cc intake runner witch explains the good low end aspect, fuel and air getting necked down from such a large space would compress together nicely. or the 187 swirl ports. BTW, you have TBI heads if they have the ramp in the intake port, the 305 HO heads aren't "swirl ports". Yep 302 heads have the heart shaped hump between the valves like the 273 heads have, plus the swirl port design, and induction hardening at valve seats. My memory is foggy but the 302 is closed-chamber and the 308 is open chamber, and 308 has larger valves. a head with a lower flow rate will produce more torque by keeping the volocity of the incoming air fuel mixture up. I beleive they are a 79cc chamber head, and are better for providing if you really want to change the heads and can locate a set of them, get a set of mid-80's 302 casting heads. Home. Browse all. Click to expand I would suggest a #302 swirl port head from 85 up 318 2-v5th aves and dippys they will have the hard seats for unlead gas they are closed chambers and will up the comp some and are for a teen with small port 2 -v intake the swirl port is good for the mpgs and are cheaply got from jy-u-pull it I never understood how people went crazy over those "302" casting heads, and put them on 360's. Free ShippingLoading Estimated Ship Date: May 2, 2025 if ordered today This is the old large port Olds heads, 64cc. Intake is the Edelbrock Performer. I've run a 318 stock internals with a ported #302 swirl port in a 3400lb Dakota. 035 ths head gaskets. It Can anyone tell me about the swirl port heads from 1987 thru 1991? What engines can I find them on318 2 or 4 bbl. Complete, no signs of trauma, no sunk or burned valves. Since this has gone waaaay past that - and I've really enjoyed all the information that has been shared - I should answer 273's question - I'm building a car to use for looong distance road The swirl port and heart shape combustion chamber is an emissions thing. Quench is what separates the 273 from the 318. If you end up using these any manifold you buy need to have that accommodation or include a modification kit, something to watch for. 50 318 valves and ports so do not flow like a 360 really needs. The motor will have a solid lifter cam, 248. 805moparkid Slant and AFX Guy. @Mason73-The “302” head is junk in terms of port flow as cast and designed for emissions and mileage. So to do what I can to improve this site I am offering my 2 cents on the 308 swirl port Just liberated these from a donor motor this morning. Part Groups. they came on alot of mid=80's 318's, have a slightly smaller WTB Looking for a 2 barrel Carter carburetor 0-2425 in good shape. Thread starter moparlee; Start date Oct 31, 2019 - Prev. Any help would be appreciated, thanks. This tech tip is from the full book, DAVID VIZARD’S HOW TO PORT & FLOW TEST CYLINDER HEADS. So when I look at the 187 swirl port heads that I'm porting in my basement, I saw the same thing you did. This controlled tumble allows for better air/fuel mixing than in the earlier swirl port heads. Asking $275 SHIPPED anywhere in the continental US. Post by cr480r » Tue Jan 27, 2015 8:50 pm. The port flow is similar as well. We are running comp cams XE268H. I'm specifically looking at increasing the valve sizes in in pair of 1968 302 heads from the factory 1. First Prev 2 of 3 Go to page. So looking at cylinder heads. Nothing wrong with a 318, infact I'm halfway done my 318/390 build with 894 ported X Heads. Not looking to be a pisser, but the Magnum head is a great upgrade even in stock form. 302 heads are swirl port, according to Chrysler Engineering. the "302" castings. 60" (after attempting to port them). Joined Mar 5, 2011 Messages 869 Reaction score 105 Location Taylorville, Illinois. Improved Air Flow Over Original GT-40 Heads Combustion Chamber Volume 64cc Intake Port Volume 178cc, Exhaust Port Volume 62cc Lightweight Aluminum Fully Assembled Fits 1982-1985, 1987-1995 Windsor-Style 5. I’m doing a low $$$ 307 Chevy build with leftover parts and I have a low mile set of 193 swirl port heads that are the best heads I can come up with without spending any $$$. With 727 and 3. Create new listing. 02/1. With all the aftermarket support, are they worth as much as they used to be? heads are referenced by using the last 3 digits of the cast # = 85-318 closed chamber swirl port head is a #302 casting. The 191 is a 74 cc low compression head the 193 is the 64 cc higher compression head, you need to know which is there. 050 . 360 used J heads also. To that end, I have secured an old Edelbrock SP2P two barrel intake and a set of 1987 318 heads that are the 302 swirl-port casting. So even those crappy heads made a 78 nova go 12's. I hope to get some The "302" numbers are the last 3 digits of the casting number. Your account. 016 lash . 2:1 engine but the rating may be more "true" on the later builds. A small RV cam works The swirl port heads are better than non-swirl port heads. The heads that replaced them had less swirl and much better airflow --- they were, of course, the LT1 (in both aluminum and iron) and later the Gen 1 version called the L31 and L30 Vortec heads. Is it worth installing them on a totally stock 318 for they have efficient combustion chambers that are heart shaped, allowing more atomization of air and fuel and giving a faster burn. o p4452748 if so was it worth it and any ideas on mods to stocker 318 heads? thanks in advance #2 09-17-2001, 08:55 AM 91 318 2bbl heads (casting 302) with 1. The 308 '89-'92 360 roller cam pre-Mag heads have open chambers with 1. 360 chambers are usually at least The only 318 heads worth putting 360 valves in is the swirl port '302 heads otherwise just use 360 heads. , because the port volume is less. They feature unique valve spacing, . I have heard that Magnum heads tend to crack, but LA heads will to if overheated (Between the valves) The heads are the #302 swirl port casting from a 1987 318. TOO Many people get caught up in this 308/302 “magic Swirl port” head game. Those heads are a win win. you will also find the head casting # heads are referenced by using the last 3 digits of the cast # = 85-318 closed chamber swirl port head is a #302 casting. 251. 1 thin head gaskets _____ 9. If I'm not mistaken, '85/'86 heads although smog-type had the swirl port heads with heart-shaped combustion chambers and they're not too bad. These Ford Racing GT-40X heads have an intake port volume of 178cc allowing for an intake flow of approximately 240 cfm at . What you are gaining with 302's are swirl port chambers and hardened exhaust seats. I used valves from a cracked set of 360 heads. They had closed chambers, but 1. The 302's are only interesting because they have closed chambers (308's are open chambers like the X and J heads). Also the combustion chambers are 63 cc's. What is the difference and what is the easiest way to tell the difference if I head to the local junk yard to pull a pair. do they 360's have the 1. 050” on a 108 LSA that I used to run in a 327 The 318-2bbl heads (4323302) used from 1985 on are a swirl port design with a closed (heart-shaped) combustion chamber design with a chamber volume of between 56 and 65 cc. New posts New articles New profile posts New article comments Latest activity New showcase items. 318 swirl Port heads to Carlisle Thread starter Bigboy 68; Start date Jul 7, 2018 Jul 7, 2018 - swirl port heads. Location. Just liberated these from a donor motor this morning. A small RV cam works alliedmotorparts. The 4 heads I examined averaged 62cc in volume. 7 VMA(AW)-224, Ive compared the so called #302 swirl port heads with the early 273 closed chamber heads. 78 inch/1. The 302 head has 1. 60" valves installed, competition valve job and were treated to a full port job. What are the differences between a regular closed-chamber head and a swirl-port head? For example the 318 heads from the late 60's vs. Even when the Windsor grew to 351ci, the heads were still too small, even for a 302. I have a pair of 302 casting swirl port heads-- . Honestly shocked if it 302s are pre-mag 318 roller cam heads. The port and chamber design is very efficent, even though the valves are small compared to open chamber heads. I'm talking 596/915/587 castings etc. 2006 Jeep Liberty, 3. J heads have good potential, but put them on a stock/mild cammed 318 truck engine and you'll have a dog. Best Cylinder Heads for Ford 302 Review deeps dig to complement the performance of your ford heads are fully equipped for 1. The #308 is probably the best LA series head in stock form. Thread starter gipperco; Start date Jan 24, 2010 - gipperco Well-Known Member. I have some 67 water small port heads with phord spark plus that have chambers that look like those 273 heads. Many aluminum heads are designed to be CNC-ported and do not flow well as cast. Compared to stock heads, the port is longer, its roof is raised, and the shortturn radius is improved. for use on 289/302/351w engines; improved air flow over original GT-40 aluminum head; intake flows approximately 240 cfm; at . Originally was looking for swirl port motor but this is all they had. 84 1. They can be used differently with higher flow applications, but those who port and remove the swirl pattern at the valve window, just before the seat are utilizing the head for higher RPM HP to make up for lack of low RPM velocity. You cannot compare them to Chevy. 1. 5 12. Estimated Ship Date: Apr 7, 2025 if ordered today. The section right after the bit you highlighted says the chambers are similar to the earlier 340/360 heads, which are open chambers. Also was reading these heads have a . 302 Swirl port magnum heads asking $100 63020466 is casting number on them Also have set pair of 302 LA heads for mopar Message me! Mopar small block heads - Car Engines & Engine Parts - Carthage, Missouri | Facebook Marketplace. I can't explain why however, someone else will have to do that. 54” exhaust valves. 60 valve size or a 1. Bone yards here have these by the dozens. Note the height of the intake port above the bottom Swirl Port Heads Performance Talk : Moparchat - Home of MOPAR enthusiasts worldwide! > Technical Forums I think you would be very happy with the way they would make that motor perform,those are the 302 casting head and I put a set on a 73 360 in a motor home and it made a lot of difference in the way it ran,all good. 531. small block 302 swirl port heads I have a bare set of 302 swirl port heads in good shape 150. 028 ths compressed thickness. at least til around 4,000 rpm. You will have a swirl-port, closed chamber head that won't hurt (may help) your compression ratio. G. Great heads for torque and mileage but so are the Vortecs and they keep working past 4,000 plus their chamber design helps resist detonation. If anyone has a set they may be willing to part with please let me know. 60 valve equipped 302 heads won hands on. 010 @ 59. 4, and magnum heads shave . With just bigger valves and a simple pocket porting job, those with relatively little porting experience achieved favorable results Find FORD 5. TFS has obtained swirl-related patents on certain design features of their big Ford Racing "Turbo-Swirl" aluminum cylinder head. 50" valves, and are commonly mistaken as "swirl port" heads. Has anyone have any info 318 swirl port heads Casting #4027163 #2 04-29-2004, 04:52 PM dwc43. The Swirl Port heads also have a unique bolt pattern the angle of the bolts at the plenum was changed from meeting the head at a 90 degree to a 70 degree angle. IMO Any head with a small port like this is not a great candidate for racing use. It's my understanding that porting the heads will significantly increase the flow on the exhaust side but has minimal change on the intake side. 302 Swirl port heads vs 340 X heads. , 360 2 or 4bbl ?etc. 7 Magnum, straight piped. I am wondering if I can use the 318 heads or if my compression would be too I dont know the full buildup that you are going with on the 318 but you may possibly want to use the 302 swirl port heads. The 302 Swirl port heads Performance Talk : Moparchat - Home of MOPAR enthusiasts worldwide! > Technical Forums > I've read about these heads that will improve performance on my 73 Scamp 318. 0L/302 Trick Flow® High Port® 192 Cylinder Heads for Small Block Ford and get Free Shipping on Orders Over $109 at Summit Racing! Trick Flow High Port® 192 cylinder heads are among the most dominant aftermarket small block Ford heads in racing. 2005 Dodge Neon SXT The 302 heads will do that package wounderfuly. 78"/1. If you want to make HP don't waste your time with 318 heads I don't care if they are "swirl port" heads or not. 54 posts So, originally I was just looking to confirm the heads I'm told are on an engine that I'm buying for a 70 Dart GT I'm building are 302 swirl port heads. 02 intakes P5249574, this is a bare head but with the hardware they will cost less than a grand comlpete. Done right they are good performers. I have never used these but I have read alot of good things about them on this site. I ended up trading him a port and bowl job for about 25 heads that were pretty crapped out. Also bigger valves improve power everywhere from idle all the way up. 0L V8s More Power. Registered The 318-2bbl heads (4323302) used from 1985 on are a swirl port design with a closed (heart-shaped) combustion chamber design with a chamber volume of between 56 and 65 cc. vs Felpro . BUT, that only makes a difference in MAX flow for drag racing purposes. i was wondering what the differences are between the 360 and the 318 swirl port heads . True, both heads run a 1. Flat tappet, non-roller motor. IIRC the 1968 318 is also a 9. INTAKE PORTS. , . Location: Shelbyville,Tn. 45" to ch*vy 1. Stock 340/360 "J" head. Best of 14 @ 96MPH. These are advertised 9. Someone with a low rpm 318 or a 273 might want them. I can't believe running those short ports don't hurt performance. The chamber is very similar to early, 64-67 273's which were not designed to be swirl ports. 60 valves and port the bowls. I have a really nice set of swirl port 308' casting 360 heads in the classifiedsshoot me an offer on them. The bigger valves fill the chamber with more air/fuel mixture at low rpm's as well as high Swirl Port 308 302 info. Thanks FABO! Block, 4179930, rods 3418648, crank 3418640 heads 4027596. most had stuck valves and full of mud. Joined Jul 20, 2011 Messages 746 Reaction score 850 Location Ohio. the hipo heads also have cast in spring pockets as well. The Vortecs will trump the swirl ports in every way; more torque, more HP, more efficient chambers. exhaust port volume 62cc I'm building a 318 with a stock 73 bottom end, late 80's closed chamber swirl port #302 heads, Edelbrock LD4B and 600 cfm carb, 340 cam, dual exhaust, maybe headers but probably stock exhaust manifolds. 60" valves. These heads have 1. My choices so far are 4027569 casting 1978 360 heads I have laying around I could rebuild, x heads supposedly rebuilt already for $650, or rebuilt "302" swirl port heads for $400. . degree lobe separation, 279, 282 advertised duration, . this is more specific to thr 714 I think but most applies to the 302 and almost any small block mopar head when it gets down to it. If you want different heads look for the 302 casting swirl port heads be a better bet. dates are b25a & c05a 4323302 is the casting #,please check the pictures. FWIW, my 416's were off a 1981 trans am w/ the 305 HO. 024 head gakets available thru Summit). I am thinking about putting 1968 273 heads on it with 60 CC combustion chambers OR I have a set of 1985 318 (302) Swirl Port Heads. this is true on 318's &360's. Air flow is what makes Horsepower. 040" Bore (heads currently on my Dart's the hipo heads also have cast in spring pockets as well. I am thinking about grabbing a set of 302 Swirl port heads for my 273 instead of having the 273 heads rebuilt. I can't find the post and was wonerning if someone There has been some testing with ported 302 high swirl heads against 340/360 port heads in a moderate street engine, and teh 1. 1; 2; First Prev 2 of 2 Go to page. 60 valves as well, although they still have the smaller 318 302 Casting Swirl Port Heads small block Mopar cylinder heads and Edelbrock Performer Aluminum intake. The heads have the larger 1. 500 lift max, it got me thinking that a stock cam is in the low . Dodge didnt' take advantage of the closed combustion chambers with different pistons so there is no gain in power there. The swirl port heads were in production on trucks,vans& 5th's from '89-'92. The 302 has smaller valves and is still saddled with small ports. This chart will get you in the ballpark. 2:1 motors. These are pre-magnum heads so no problems bolting up on your motor. Economy will be good with the swirl swirl port heads? using referred to as 308 heads with open chambers and available on 89-91 360s Also, can anybody show me the swirl inducing portion of the 302 int port and how it's different from the 675 318 heads? It would be nice to know the info given has some proof to back it, thanks. But, bolting on a pair of Edelbrocks 318 swirl port. 23. 60" (Shady Dell) on a 4. The downfall of using 360 heads is lower compression so you have to mill them to bring compression back up somewhat. 60 exhaust valves do they have the big ports also are they worth looking for over the old style 360 heads i dont plan on porting them atleast not untill i get money Hello, these heads came off a rebuilt motor that sat for a long time before I bought it these are off a 1989 dodge ram 360- with roller lifters/cam and early fuel injection - TBI Heads part # 4448308 (308 heads) Great swirl port LA Heads, very hard to find, 1989-91 years only, intake (1. 2000 Dodge Durango, 4. Also what vehicles should I be looking for to pull them from? Thanks 318 swirl port heads are to have the “302” Designation. Joined Sep 12, 2009 Messages 77 Reaction score 41 Location saskatoon sk. If the casting number "302's" have the same small intake ports as 273/318 heads, and pretty much the same CC's as the early heads, so you can use your original small port intake. Ports are not chambers. The test conducted by Arrow racing was published in Hot Rod magazine some 10-15 years ago and is worth reading if you find the magazine, the info is still valid today. I think the truck heads had the big plugs. Which head flows better. 302 Closed Chamber Heads gains 1/2 a point on compression ratio, over stock open chambers. 010 @ 64ccView attachment 137678 but were still fitted with heads more suited to 221ci with the vast majority coming with a 2bbl carb. 302" Heads 1. I am going to keep the stock Holley 2280 two barrel carb and the stock tiny valves in the heads. The intake ports on 302's have a huge pushrod bulge in them. I've ported several sets of regular 360 and Slant Six heads, and was wondering if I have to do anything special when I start working on the swirl port heads. Age: 54. The Swirl-Port TBI heads are 64cc. 550" lift Okay so I finally found a cheap 340 block and it's at the machine shop getting cleaned, tested, and the short block built. Dearing, Kansas · Within 621 mi. Results 1 - 25 Cylinder Head, High Port® 240, CNC Competition Ported, Bare, 67cc CNC Chambers, Small Ford, Each. 88/1. 302 heads are like 65cc 9. 500" lift; machined for 1. Many later versions inculded swirl port etc. If you do a quick search using the search feature on the site, you'll find tons of info on the 302 heads. The heads I pulled off my 307 were actually 513 castings (which are the 267 heads with 1. On a 318 you will have to consider the compression ratio. 60 valves. just checked my reference book, swirl port heads were on '86-'91 318's and '88-'91 360's. They should have 1. THe article also mentioned that I would need to get . 1; 2; 3; Next. Engines with swirl port heads would be set up for 2 barrel Throttle Body Injection (TBI). Better to spend the $100 at a boneyard to get those. The combustion chambers on the 513's and the large-ish port volume make me think that the 513/601 heads are pretty similar aside from the valve sizes. Anyway the best looking of all of them were some swirl ports. Carb is the Holley #3310 750cfm vacume secondary. A Guide To Mopar Those heads are PLENTIFUL in the bone yards. Members. The 302's for the 318 were equivilant to the 308's for the 340/360. I have a couple electric fuel pumps laying around so cost isn't the issue but If I get 5hp sounds like it would be worth it. Ive seen that there are Mexican and US heads. There are two TBI Swirl Port heads used on the 350 one ends with 191 in the casting number the other 193. The only 318 heads worth putting 360 valves in is the swirl port '302 heads otherwise just use 360 heads. The 308 heads are all 1. 2:1 stock 318 short block. 60 valve size. I have put them on a 360 In Larry Sheppard's "How to Hot Rod a Small Block Mopar" he says the swirl port combustion chamber on the 360 Cast 308 heads are the best stock heads for last vid. The only reason I am running them is because I have them. I am building a street engine. Go. #2 were these numbers for the 308 casting (360 swirl port) or 302 casting (318 swirl port)? Just wondering from the size of the valves and the numbers look a little 318 swirl port heads. Thanks FABO! FWIW, my 416's were off a 1981 trans am w/ the 305 HO. the swirl port design will improve the effency of combustion and the smaller combustion chambers will up the compression slightly. Also, these exhaust valves are heavily swirl-polished. For a comprehensive guide on this entire subject you can visit this link: LEARN MORE ABOUT THIS BOOK Second that. 5 to 1 dome pistons in it. Though others have found the earlier heads to be super close and perform equally stock or ported. Thread starter Mopar44134; Start date Sep 25, 2011 - Mopar44134 Well-Known Member. (596/915/587 castings etc). 38" exh, and 55cc chambers). 360 heads all flow about the same with the #308 heads having a little better exhast and High Port® 240 cylinder heads for small block Ford are specifically designed for large cubic inch, large power adder, big shot nitrous 67cc CNC Chambers, Ford, 289, 302, 351W, Each. Top. most smogger 360 heads are the 1. Joined Oct 29, 2008 The exhaust side is where the "swirl port" heads are better. With casting number ending in 302. 400 so if I Some flow benches are equipped with a swirl meter, and according to the results I have heard all the factory Mopar wedge heads have a good swirl, so I guess they are all 'high swirl' heads. F. Mopar produces a 340 head with swirl port technology and 2. The 302 has a slight advantage and thus is the reason MP used that head for there performance ported 318 head. Tuning distributor timing curve for 302-casting heads (swirl-port) Jump to Latest 668 views 0 replies 1 participant last post by freebird Aug 28, 2010 Ford 302 gt40x SVO cylinder heads 64cc chamber original - $875 Increase the horsepower and torque output of your push rod 5. I also read on a message board somewhere that I could get these heads new or rebuilt with the 1. Leave the valves as high to the surface as you can to reduce the combustion chamber size and raise the stock CR a little. cr480r Member Posts: 55 Joined: Wed Dec 05, 2012 7:23 am Location: Re: 193 swirl port. Banned : Join Date: Sep 2002. The 302 swirl port heads have a smaller combustion chamber. So putting a set of them on wont lower your cr and in fact I'd be inclined to believe you will loose flow. Fact is, they are OVERRATED. What's new. My question is the cam. The Vortecs are the best flowing factory GM small block head. I'd also recommend an Edelbrock preformer intake (not the rpm version) for your car. It’s for a 318 CI engine. It might help fuel mileage a tad. # I used # 302 heads, which have hardened valve seats, and have the small combustion chamber, when I built my 318 to replace my tired 273. The 308's are also open chamber, and have the larger 360 sized ports. 6) I believe the chamber is 73cc These heads are designed for The Vortec Gen I engine is found only from 96 up in trucks using that weird injection where the injectors are in the central part of a plastic intake. The swirl port and heart shape combustion chamber is an emissions thing. Sep 25, 2011 #1 I just wanted to say how impressed I am with everyone here at FABO. Part Number: TFS-5171T016-C02. MEASURED CHAMBER VOLUMES Head type, casting number, FORD 302/351W, CASTING #E7TE-PA 62. 88 and 1. (Also IMO because it was the current head being casted. Use 76cc when figuring a combo and you may end up with a detonation problem. Once properly done, they should easily output power a stock 360 head. Both heads require self guiding rockers as there is no cast in guide. They use a exhaust port design that was inspired by the W2 race heads, and flow better on the exhaust side than most of the other stock 318 heads. parts are located in Wichita Ks 67209 $170 including shipping thanks The swirl port heads are the second worst flowing factory GM small block head. The heads have larger valves, I would not be surprise if you get both a mileage and power increases. I am also going to keep the EGR functional. you simply dont need the higher flow rate of larger runners. Both head have 1. golden boy Well-Known Member. The 302'in stock form Milling won't hurt either. 88 intake and 1. How much Hp and Tq do you guys think it will make. I am in Minnesota, twin cities area if anyone is nearby. Not only are they not "swirl port", this is the first reference I've ever seen or heard to them being such. Should I run the 601 casting no. Filter by Availability Filter Results Individual Parts. Now to make some power with the 302 heads you drop in 360 valves and port the heck out of Im thinking of picking up a set of late 80's 302 heads. I'm not putting "soup up" 302 heads on my high reving 340, ha ha but for a low revving 360 with "nothing" compression, a 58-60 cc head chamber might work alright. The 318-2bbl heads (4323302) used from 1985 on are a swirl port design with a closed (heart-shaped) combustion chamber design with a chamber volume of between 56 and 65 cc. Then an Edelbrock Performer RPM, 750 holley and dual exhaust with 2 1\4" pipe minimum will be "J" heads are usually 915's, they use the same size valves and ports as the later 974's, so they're basically the same head. 94” intake valves and 1. 010 ths for clean up, so 302 swirl port heads on a 360. The swirl port heads are the second worst flowing factory GM small block head. Its not wrong from my experience. they flow better than "J" heads with If you remove the heads, you can recognize them from the closed, kidney shaped, combustion chambers. It does not kill low end power like some believe. which is a 2. Quench is what separates the 273 302's should have about a 58cc swirlport combustion chamber, so it may boost compression just a touch over the old 593's and will have a better combustion and flame front 302's are closed chamber, swirl port heads and were made from 85-91. JUNK unless you have forced induction. 2L Magnum 2008 Grand Caravan SXT I do have the heart-shaped 302 heads now. Mopar Performance sells these heads as a 55 HP. I want the most bang for the buck. 3 0 0. Next Last. PM me if interested. 050” on a 108 LSA that I used to run in a 327. ) The 302 heads will give you a heart shaped closed chamber head to help with this (especially if you use MP . 5 302 closed chamber heads. They only used them for a few years, not sure which there either but it was something like 85-88. at . Cam is a small solid cam 224/224 @ . I wouldn't get too hung up on that letter at the end. 50 valves stock, and to get good They are swirlport designs, so you can id them off the motor by looking at their heart-shaped chambers. a member tells me they will drop right onto my 273 without notching the cylinders. The SBC had it all over the Windsor Fords when it came to stock cylinder heads. In order to get the head to perform, they need to be ported, a lot! There is enough meat in the heads ports to do some major reworking, and that’s what’s needed. 60 valves [FOR SALE] 302. 5 cc Chambers), Intake milled to match heads, heads have been The swirl port heads were in production on trucks,vans& 5th's from '89-'92. Chris . Sep 23, 2013 #2 Shorty Thompson Well-Known Member. New posts Recent Posts Classifieds Search forums. Click to expand Yes, they are swirl PORT heads. No head will produce any more power without changing the intake, exhaust and carb. 750" raised exhaust runners, extra strong castings and thick decks for 308 heads are not closed chamber. 302 series LA swirl port heads have larger closed chambers than Magnum heads and will result in a more reasonable compression ratio for a boosted application. 50 valve sizes. 72" int, 1. I read every where that these heads need less advance than standard chevy 350 heads, and can find loads of info on spark tables from Tuner Pro and the GM computer however there are so many adders and subtractors from the table it is almost impossible to The Swirl-Port TBI heads are 64cc. Estimated Ship Date: May 2, 2025 if ordered today. Valves r stock size in the 302 swirl port heads. 60" valves and a mild port job to clean them up and blend in the cuts from the oversize valves. The larger valves seem to be As with any head, bigger valves, a port match or porting will be an improvement and as mentioned there are quite a few iron and aluminum heads available if you want to build your 318. Smallish ports and valves boost low end throttle response and torque. Freshen them up, and bolt them on. They're a nice improvement in compression when used on a mild 318, especially considering how low some of those engine are for compression from the factory. Posts: 23,987 What do you need to know? A good set of X or J heads out flows them and Gasket Head Gaskets 1121G. Pull some valve covers . Forums. bolt on assembled set. Jan 24, 2010 #1 So I have a set of 302 Swirl port heads currently on a 318 that I am building as a seat time race engine. Problem is, finding a set that aren't cracked. Then an Edelbrock Performer RPM, 750 holley and dual exhaust with 2 1\4" pipe minimum will be just checked my reference book, swirl port heads were on '86-'91 318's and '88-'91 360's. They are not gold but certainly worth something. Bogie The 302 heads will give you a heart shaped closed chamber head to help with this (especially if you use MP . These heads will port out well, but be aware that 305 heads have smaller valves, but the Vortec’s high swirl and port velocity also means exceptionally good low-end output. the likely net change in hp going from one to the other will be very close to zero. But if you The 302 heads will do that package wounderfuly. I have a set of 302 heads from a 318 which I want to port out for my 318 Dart, which will end up being a 4 barrel 14 second daily driver. Bone yards are loaded with them. Tuning distributor timing curve for 302-casting heads (swirl-port) Jump to Latest 668 views 0 replies 1 participant last post by freebird Aug 28, 2010. owscck vejt mvmxw firuyzlhl xwm iflt nxvhn ycaf crw ezedgfig