Holden 253 engine date codes. Standard bore and heads as far as I know.
Holden 253 engine date codes. HQ Holden / late HZ Holden High .
Holden 253 engine date codes Statesman motors had 11 in front of the normal prefix, so a Statesman 308 would read 11QTxxxxx (or 11ZTxxxxxx). Turns smooth. Here's a host of others that I can find no information on, so some help would be appreciated. Holden V8 blue motor heads good cores with standard size valves to suit Reco. They are almost always 1969 cast blocks although the odd late 1968 and (from memory) early 1970 engines have turned up. 253 (supposedly original from a 8/72 HQ) has E102 253 (not sure where it's from Holden Red 253 Engine November 1976 Date Code - QR Prefix Engine was supposedly running before I bought the car however came less dizzy + carby Suit Rebuild Can supply a trimatic auto for an extra Holden 253 Engine - Car Engines & Engine Parts - Jimboomba, Queensland | Facebook Marketplace The HT and HG 350 manual engines would seem to have provided the best combination of power AND fuel economy for Quadrajet-equipped cars. 18th October 1968. The 253 and 308 soldiered on essentially unchanged into the HG Holden and HQ Holden Series. 48:1: 1. Engine No. 85l engine, 2. The last number is the year. - posted in Engine: I've just come across a 253 with a "VR" prefix and I've misplaced my info on engine numbers. HT Holden and HG Holden High Compression. Missing a few of the bolt ons as I need them for another build. 6, ly7, ve, 02/07-08/09 engine is still in car running *** ad is for engine only *** also have complete manual conversion ***** will be wrecking the complete vehicle call (07) *****5999 all parts must be pre ordered. Engine Block Style: Stock/OEM standard deck Injection Style: 8 Throttle body Basic Operating RPM Range: Idle-7,000 Intake Trumpets: Intake Trumpets Included EGR: No Injectors Included: No Fuel Rails Included: Yes Throttle Body Included: 8 Pieces Base Material: Aluminum Casting Base . Reconditioned 253 Holden v8 It’s currently in a boat, only got put in boat 4 months ago but turns out it won’t work in the boat, Has all brand new parts - - New Alternator - New Starter motor - Dec 29, 2003 · Merry Christmas, Happy New Year,and all that other rainbows and fairy-floss stuff, my question is very simple but getting an answer is driving me insane. → Holden Tech; → Aug 12, 2016 · decoding 253 engine prefix - posted in General LH-LX-UC: hi guys hoping someone on forum can help out with decoding my 253 from my ss hatchback on rego papers it states HR56376 but on a letter from holden i recently received it states R056376 im confused as to what the letters actually mean on both the holden letter of authenticity & rego papers as the numbers are the same cheers The Holden 253 HP1 Ready2Run engine includes a fully machined, blueprinted & balanced long motor, including HP heads with over size valves and pocket ported. A$550. If you do not know where to look they are hereThe date code which should look Find holden engine 253 ads in our Engine, Engine Parts & Transmission category. Application: Holden V8 253 Red, Blue Petrol Engines. Has no major damage but a fire under the bonnet of the WB Ute that it came out of brought it to a stop and it has now been resting for many years . I have recently been told that it is possible to determine the build date of Holden V8's by using the casting number on the front LH side of the block near the timing cover. Standard rods Jan 13, 2021 · The date code is 7th April 1970 which will be probably be 5 digits after 308H. Before restoration “QU” 350 Engine; Turbo Hydramatic 400 Transmission; Cooling System; Fuel System; Front Suspension; Brakes; Interior; Dash; HQ Nutmeg Metallic Coupe Register; HQ Engine Conversions. Casting dates vary considerably. Holden Factory A/C System; HQ LS 350 Register; LS350 Restoration. Holden 253 code is On code is On; HTML code Feb 9, 2006 · → Holden Tech; → Engine 23-3045 is listed as HQ 253 Auto. Holden 253 HP1 performer engine. 3l engine, 3. Configuration: Front mounted, longitudinal, Vee configuration. MD TFB5SF AG/IJ Engine RLJ Trans RMD Grade RBB What Engine Is In My Holden? Decoding Holden Engine Numbers Code. Holden 253 engine, 30000k since full reco, QR engine code with factory 4 barrel manifold. Return of the 253 + M21; Factory 350 Conversion. You only really find HP on HT Brougham engines plus a few months in other HT's. the date code on the top front of the block will help determine if ti is the correct build date for a HZ. L22 - 130HC. 5 mm Please Check the Pictures carefully before you buy to avoid the mistake Payment: Paypal, Pickup by Cash, Pay to our bank account, Pay on the phone by Credit Card. 2L 8cyl 87kW GMH 253 (Red) 4142cc 87kW (Petrol) Holden: H Series: 1980 Aug 9, 2023 · The engine was assembled using the regular Holden 253 steel shim head gaskets, a stock later-generation electronic Holden distributor and a Holley 600 on an aftermarket intake manifold. 253. Engineering was told to make the Chevrolet 307/327 small-block fit the HK instead. 138HC was similar for LC Torana as was 161S. Standard bore and heads as far as I know. 68:1: Trimatic ID Plate Codes: HG Holden: HH: Today I was at a mates. thanks Rhys Oct 16, 2018 · 2010 Holden Cruze with engine codes P0599 and P2096. i have searched through this forum and a few others but cannot seam to find Holden 253. 253NxxxxS. The difference in the engine numbers is 3,391. What i am after is the fault codes for a vx series 2 (2002) v6 automatic commodore, the ones when you hold down the mode and the up buttons on A Guide To The Holden Transmissions including PowerGlide and Tri-Matic (HT 253)-3. Feb 10, 2024 · Engine Notes; Holden: Commodore: 1980: VB Sedan 4. 0L V8 Working Temperature:-60~260 degrees, Working Pressure: 0. Initially both the 253 and 308 (and imported 350ci engine) were offered in the HQ HQ Holden V8 Engine Specifications . Oil pump modifications and Head assemble 23-3045 WW is of a 253 V8 HQ from July '71 to Oct '72. May 17, 2020 · I think the 6cyl engines were all L2x codes initially too in Holden and LDx in Torana but LJ used the L20 and L23 codes from Holden in LJ: - - - - 161HC (standard engine, no code). You'll know if it was column shift and you'll also know if it was a 4spd manual both by the floor tunnel. The engine number should give away what size the engine is. Problem I have is I was told by dyno mechanic to put a 600 vac sec holley on so I bought a brand new one. If anyone has any old box's lying around that these details can be noted on and sent my way I will really appreciate it. Application: Holden HT, HG, HQ, HJ, HX, HZ Models 05/69 – 1980. Engine was decked, rebored with new pistons, rings and bearings. is : - WR296002 and I beieve the Date Code will be : - 11M1 . 838lt, 1980, 76 kilowatts, VD 3. 59:1: 2. HT Holden and HG Holden Low Compression. It had no 'HP' or '253' in raised letters on the side of the block. holden hj red 253 engine this is date coded january 1975 standard bore trimatic / aussie pattern and turns over by hand it has brand new water pump but one of the water pump bolts broke off in the timing cover but once pulled down should be an easy removal it also has an aftermarket kc casting 4 barrel manifold in good condition comes with Find holden 253 for sale ads in our Engine, Engine Parts & Transmission category. No damage to the bores. 253H. 23-3046 earlier carb for an HQ 253 manual 23-3048 LC 186S 23-3050 HQ-LC-LJ 173 MAN 23-3053 HQ-LJ 202 AUTO 23-3054 LC-LJ 138 MANUAL 23-3063 HQ 253 V8 Auto Nov 72 to July 73. All HQ 308 manual cars and all 350 cars had jets and metering rod combinations that pushed more fuel into the engine for less power out compared to the HG 350 manual. The date code is below the passenger side head and should look like 23F8 which is 23rd of June 1976. Also see: Holden 6 Cylinder Engine - Background To Identification | Holden Engine Identification Guide | Holden Engine Numbers Feb 7, 2024 · Holden 253 v8 with qr code has been sitting around in need of a rebuild 700 can deliver to any freight company in Geraldton or home , 1321793455 Date Listed: 07 253 turns over very clean inside , 1328801117 Holden 253 vergin vr code engine. $520 Cockatoo, VIC Feb 17, 2015 · decipher the date code cast in the block (same place as 253/308's) Front of the block, passenger side, where the timing cover meets, 3 or 4 digits. 253L. The 308 prefix was QT up until the same date when they changed to ZT. Holden blue 253 engine will suit rebuild. a red 253 with VR engine block ID prefix that is the first two letters stamped on the engine number, it indicates it is from VB model and VB only, the 5th didgit on the vin will be R. Notes. crank is 0. $550. 130E. Sep 10, 2013 · 253 v8 emissions control - posted in Engine: HI, Im putting a 253 v8 into my 1974 Lh sedan, i didnt get any of the charcoal canisters with it, so i was wondering how i can make it meet the emissions control laws suited to 1977 to make it legal in queensland. I am putting together a data base on serial numbers and date codes from aussie 3 spd and 4 spd gearbox's. thanks Rhys Holden 253 engine, 30000k since full reco, QR engine code with factory 4 barrel manifold. thanks Rhys Holden 253 308 Downdraft EFI Intake Manifold & Ems Stinger v4 ECU Set You can call us on for all your enquires. 1968 is easy as they use US date coding. A$400. New crankshaft, mild camshaft with new lifters and heads had full reco Engine was removed from running car recently in September 2024 and was a good running motor Running a Torana LH/LX HQ-HZ 17 hours ago · Silicone Radiator Hoses for Holden HQ HJ HX HZ V8 253 308 4. If the engine number starts with QR it's a 253 or QT if it's a 308. Feb 28, 2021 · The engine number is on the block on passenger side front of the block on a ledge that protrudes out towards the guard where the cylinder head meets the block. holden; cruze; p0599; p2096; 1 like 0 dislike. VZ - VK 308 V5H. 020/0. There are also other differences as well but that is a very simple one. The V8 engine also appeared from 1971 in the Statesman range of large size luxury cars which Holden established as a separate marque replacing the Holden-badged Brougham. I have some spare Hi guys, I have a 5/76 HJ 308, I'm wondering if there is any actual records of the actual engine number the car was made with, as I'm guessing I am never going to be able to find this block, what would the approximate engine number/code be for a 308 built for a 5/76 hj so I can at least have a block that matches that era. Head Design: Pushrod and rocker actuated overhead valves with two valves per cylinder 253 casting date decipher: hey guys,, need help to decipher a casting date on a QR 253 V8 motor code is either : 6731 or G731 also what is the purpose of the clock and how do you read it ps i know how to tell the time ,,,, really i do cheers Alan Drive carefully! Engine number is 308H13XXX and it has a casting saying K159 with a dial with 12 dots with the slot in the screw head (??) pointing to the 11 (or 5 - no arrow) if the 12 points direct to the rear of the car. 130. 6L petrol H = Wheel Base Long K = Year 1989 1234567 = last 7 digits is the serial number, which I have omitted and followed sequentially. L20 - 186HC (later re-used for 202HC) L21 - 161LC. Jan 1, 2021 · The 253 engine number prefix for 253 was QR (or QS for lo-comp) for all HQ, HJ, HX & HZ up until Sept 78 when they changed to ZR (or ZS for lo-comp). I had a July 76 Monaro with original engine in it and the cast date was March 76 so three months prior to the vehicle build date. 020 , all i can find on the pistons is 1. Difference between 308 vs 253: Does any know if the bore size of a Holden V8 engine can be sustanciated between 308 vs 253 without pulling off the cylinder head? Just imagine there is no engine number and the displacement no on the side of the block has been ground-off. L23 - 186LC (later re-used for 202LC) LD1 - 173HC. Unless its a replacement engine (Nasco) the date code should be on or before the build month. BS. Designation: 253 L. Hobbies › Car Engines & Parts. Also included if you so desire a blue 253 short motor, has water damage to 2 bores and crankcase area,, going by the engine number I assume it’s out of a WB Ute. It will be a 3 or 4 digit cod WB Ute Codes: Hi all, Have been finding it a little difficult to get info on translating the WB commercial compliance plates so would appreciate any help. VC series 1980 V8* 253 casting date decipher: hey guys,, need help to decipher a casting date on a QR 253 V8 motor code is either : 6731 or G731 also what is the purpose of the clock and how do you read it ps i know how to tell the time ,,,, really i do cheers Alan Drive carefully! Find many great new & used options and get the best deals for Holden HG HT V8 253H Motor 253 Engine at the best online prices at eBay! Jun 16, 2013 · Page 1 of 2 - holden 253 what carburetor - posted in Engine: Hi Ive just finished building a lx hatch its got a 253 with a trimatic and a 2200 stall. 2=72, 3=72 etc. 8 cui, 138 kW / 188 PS / 185 hp (SAE gross) for Australia . 00 ? stamped on top were oversize is normaly 253 QR engine code came out hz not running suits rebuild . The basic block continued in the next VC model but painted blue and fitted with a brand-new 12 port head, a 2bbl Rochester carb, electronic ignition, improved Starfire con-rods and a fully counterweighted crank. Holden 253 complete bottom end, needs new bearings. New crankshaft, mild camshaft with new lifters and heads had full reco Engine was removed from running car recently in September 2024 and was a very good running motor Running a Torana LH/LX Jan 16, 2012 · 253 engine number prefix. 23-3064 HQ 253 manual the later carb (Nov '72 onwards) 23-3073 HQ 173cid AUTO 23-3074 HQ 173 MAN Hz 253 v8 engine good runner. So I need to tell if the engine is a HQ or HJ block. 298lt, 1980, 83 kilowatts, VL *prefix to engine number located right side of engine above engine mounting. Later blocks such as 82, 83 etc can be distinguised from 72, 73 by having 4. This breaks down to : 24 is the day of the month, All I can find in my info at home is that 253 prefix was QS (Low Comp) and QR (High Comp) and 308 was QT prefix. didn’t blow smoke or leak oil. 2 V8: RWD Petrol 4. → Holden Tech; → Engine As Byron has said try to find an engine number close to your original engine or if you don't know the original engine number ask for the engine number range around your build date. Identify The 6 Cylinder Engine Codes In Your Holden. thanks Rhys Sep 28, 2006 · How to tune a Holden 253 - posted in Engine: Hey Y'all, I'm new to this forum, and to Holden V8s, I have recently bought a UC Torana (well it has sunbird badges) with a 253 ( ) in it and I am woundering if anyone has any links to a how to tune page, or if anyone wants to type up a quick do it this way sort of guide. By razsandman in forum Holden Sandman Q&A Replies: 2 Aug 22, 2009 · Page 1 of 2 - Aussie 3spd/4spd date codes and serial numbers. they read for example- 24J5. Block is . Pick up Hillside 3037 253 Holden engine - Car Engines & Engine Parts - Melbourne, Victoria, Australia | Facebook Marketplace Jun 12, 2014 · 17 = Engine is 2. 9. HQ Holden / late HZ Holden High Holden 253 red motor ( long block) Engine code indicates early to mid 70s build. Listed 50 minutes HQ Holden Trimatic transmission ID codes – each code has a different number of clutches and valve body differences: Engine type: 173 L6: 202 L6: 253 V8: 308 V8: Transmission code: HN: HT: HO: HP: HQ Holden Turbo Hydramatic 400 transmission ID code: Engine type: 350 V8: Transmission code: EH: HQ Holden Automatic Transmissions – gear ratios according to my 45 years of holden book, QR is a 253 from a HX (from July 1976) or HZ produced up till September 1978. Despite that it may just have been an exchanged block. Standard block bored & Torque plate honed, Zero decked, line honed. The engine has a small cam performer manifold electronic distributor. MORE 515hp Holden 253 WB Commercial 253 engine codes: Hi All, Can anyone please tell me if the 253 in the WB utes/vans came out as high compression AND low compression? What are the engine codes of them, I believe the blue engine codes are different to the red ones. HP was basically finished by the end of 1969. Any help would be greatly appreciated, thanks Jan 16, 2013 · 253 rebuild questions - posted in Engine: just pulled apart the 253 that is going into the monaro,got some questions for the gurus. Specifications listing with the performance factory data and ProfessCars™ estimation, including acceleration times 0-60 mph, 0-100 mph Later blocks such as 82, 83 etc can be distinguised from 72, 73 by having 4. Engine number: 253H1271. 1. 2L 5. 271st Holden V8 Dated: K188. 4:1 compression, 120Kw hi there i have a 253 holden motor just wondering if anyone could tell what my motor is out of the engine number id HR 26224 there is another number near it that says 2815889 any help would be great thanks. Feb 11, 2023 · Date codes are never stamped into blocks so will not be original. 892lt engine, 1980, 58 kilowatts, VN *prefix of engine number located on engine block below number 2 spark plug. VC series 1980 6cyl* 2. Rochester Quadrajet – part numbers – date codes – metering rods & jets Holden Red Motor Engine Codes; Holden 253 V8 - The First Mass Produced All Aussie V8; Holden Starfire 4 - Australia's First Locally Designed and Built 4 Cylinder Engine; Nov 27, 2011 · 253 engine number codes - posted in Engine: howdy blokes, I have a 253 engine, its for E. 1976 Qr engine casting. Capacity: 4. Ran great, only selling due to needing room and funding bigger build. VW - VL A9L Group A. 6l alloytec v6 petrol engine complete less accessories code : llt engine suit : *****2009 3. I have lookes at 3 blocks in the shed and they have the following marks. Unsure on kms of motor Date code I6G9 ZR prefix Sold as pictured $550 Pick up Lang Lang Victoria 3984 Ph 59975555 or 0437467169 Holden 253 engine good runner - Car Engines & Engine Parts - Lang Lang, Victoria | Facebook Marketplace Dec 18, 2016 · Join Date Jan 2010 Age 52 Posts 4,173 Thanks 2,225 Thanked 2,404 Times in 1,392 Posts Rep Power 690 Reputation 18426. C. GMP&A 253 Replacement Motor VC-VH, WB Holden 253 hr prefix 2nd July 1976 date code torana lx suits rebuild not sure on condition turns over have trimatic and converter Holden 253 - Car Engines & Engine Parts - Macedon, Victoria | Facebook Marketplace Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Holden Kingswood 253 V8 in 1973, the model with 4-door sedan body and V-8 4143 cm3 / 252. Buy and sell almost anything on Gumtree classifieds. Located on the left hand side of the front of the engine block. Holden "Red" Motor image from original Holden EH sales brochure Please Note: You can sort this listing by simply clicking on the column heading We went out to the shed and he showed me a Holden 253 he had on an engine stand that he is about to rebuild. Hopefully Warren will be able to help you out on the changes to the 350 between 1971 and 1974 Oct 15, 2019 · Camshaft, timing chain and lifter installation. 1 answer 324 views. Donor 350 “QU” Engine Aug 28, 2024 · Application: Holden Commodore VB, VC, VH Models 11/78 – 02/84. Cash on pick up from Cockatoo 1 hour east of Melbourne. Any help appreciated, Engine date code will be found as marked; the 4 253 i have here are : 12J3, 18J8, 16G2, 31A9. G QR123456DM what does the DM stand for. 2 cast on the side instead of 253. grant Engine number: 253H42XX Date code: E19 1st May 1969 Upon closer inspection I noticed it was a very early HT 253. 149 litres (253 cubic inches) Number of Cylinders: Eight. 2L 8cyl 87kW GMH 253 (Red) 4142cc 87kW (Petrol) Holden: Commodore: 1980: VB Sedan 4. 0 casting numbers on the blocks in the HX according to what I'm reading. Trim: 1958 63V Model: WB8N80 - Kingswood ute? Paint: 2C001D Eng: L36 - Blue 253? Gearbox: M20 - Aussie 4 speed Oct 1, 2020 · The team at Superformance just finished re building a fresh 253 with a healthy cam upgrade, gearbox and torque converter on this classic HX Holden, one of th WB Commercial 253 engine codes: Hi All, Can anyone please tell me if the 253 in the WB utes/vans came out as high compression AND low compression? What are the engine codes of them, I believe the blue engine codes are different to the red ones. Engine Prefix: QR (ZR from 01/09/1978) Type: Conventional, watercooled four stroke, reciprocating piston type. As engine numbers were allocated sequentially (across all engines, no matter whether L6 of V8), this indicates that my GTS was assembled roughly 3,391 Holden cars after the Holden 253 engine was running when removed from car 2 years ago. 253 H. Including: Aeroflow Oil pan, High volume oil pump, Edelbrock performer manifold & Air Filter, Holley Brawler 600 carby, Ice Ignition Distributor, ignition control box, coil & plug leads The 253/308 was a slow seller to begin with, but Holden built & sold 5000 White Hots in the space of a few weeks & from the posts above we have learnt their engine number range. WB Commercial 253 engine codes: Hi All, Can anyone please tell me if the 253 in the WB utes/vans came out as high compression AND low compression? What are the engine codes of them, I believe the blue engine codes are different to the red ones. Holden V8 engines also have a casting date on the blocks. 271st Holden V8 Find holden 253 blue engine ads in our Cars & Vehicles category. thanks Rhys There will be either a 253 or 308 cast in to the side of the engine block. The car has been to dyno 3 times and is still no right. That should solve the first question. This principle is across all models. Comes with WB Commercial 253 engine codes: Hi All, Can anyone please tell me if the 253 in the WB utes/vans came out as high compression AND low compression? What are the engine codes of them, I believe the blue engine codes are different to the red ones. - posted in Driveline: Hi all. selling as a long motor without accessories . first number/s = day, letter month, number year VU65X would be VS era, so yours maybe a VS III block Check the dates codes if you’re after a date specific engine. The 1-39 is the date code, in this case 1 is 1971 and 39 is the 39th week of that year. QR. We went out to the shed and he showed me a Holden 253 he had on an engine stand that he is about to rebuild. thanks Rhys Jul 14, 2014 · 253. The date code is 1c6 - 1st march 76? Car is jan 77 hx eng number is QR745816 dont know what the heads are will have to bring verniers home and measure valves. Upon closer inspection I noticed it was a very early HT 253. HR is a red 253 from a Hq ect ect. Is this correct. What if you had 308 blocks cast in 1968, 1978, 1988 and 1998? How do you tell then? As above engine number, but also by other telltales on the block. Holden (Australia)'s MY traditionally starts on September 1st; and GM (America)'s MY traditionally starts October 1st; but going by the engine numbers, these condition used - good now selling 2009 holden commodore sv6 llt/ly7 3. 130T. 060” or it may need a sleeve or two. Jun 21, 2017 · Holden tried to get the 253 into the HK but as 1968 dawned it was obvious that the Holden V8 would not be ready. WT - WB commercial. 2L 8cyl 96kW GMH 253 (Red) 4142cc 96kW (Petrol) Holden: Commodore: 1980: VB Wagon 4. It will simply be an everyday HT 308 engine, most likely from a Brougham and least likely from a HT V8 Belmont wagon (which is co-incidently the rarest production Holden). Sep 11, 2019 · My original engine number was QR245145 and the replacement block is QR241754 with casting date code J262 (26 September 1972). Holden 253 QR engine code came out hz not going suit rebuild. No damage to any pistons other than a bit of carbon on top. Oct 27, 2012 · Page 2 of 2 - how to date code v8 engine blocks - posted in Engine: Only one side on red blocks. 1979 E and S Series Bedford (Chevrolet pattern gearbox) 253. 2 and 5. Oct 27, 2012 · So it is a 1 number code for the year. Holden 253 engine. Dec 8, 2015 · These "RPO codes" or "Broadcast codes" or "EUN prefixes" (or whatever you want to call them) supposedly change with every "Model Year" (MY) whether the engine spec changes or not. asked Jun 10, 2017 by Isamahel. 3-0. Earlier blocks (which have a different prefix on the engine number [253H]) will have the month before the day in the date code. the engine ran Nasco engines: i bought a 253 last week and iv'e just noticed it has a odd engine number, the number is NR1#### this is a nasco replacement engine right? the engine date code says it's a 1978 block, wasn't nasco gone by then? also, does anyone know how nasco engine Jan 27, 2009 · VU - VN to VS 304 except VS series 3 ute and statesman with 179kw engine. Application: Holden One Tonner WB Models 04/80 – 07/85. HT Holden / HG Holden. 030” up now, bores may clean at . A set or used Holden 202 Extractors, suit Red or Blue engine. These prefix letters went into HJ Holden production as well before going to the 4. An added problem was that sales director John Bagshaw made a deal with David McKay to run the new Monaros in the London to Sydney marathon. Some are hard to read so hope I have them right. HQ Holden Trimatic transmission ID codes – each code has a different number of clutches and valve body differences: Engine type: 173 L6: 202 L6: 253 V8: 308 V8: Transmission code: HN: HT: HO: HP: HQ Holden Turbo Hydramatic 400 transmission ID code: Engine type: 350 V8: Transmission code: EH: HQ Holden Automatic Transmissions – gear ratios The 253/308 was a slow seller to begin with, but Holden built & sold 5000 White Hots in the space of a few weeks & from the posts above we have learnt their engine number range. 253 was the standard engine in most V8 HG models and 308 will be very rare in a ute especially if it is a Belmont. ZT - late HZ. Holden hg 253 H engine, date code 10/70, period correct engine for hg, good engine ran well, I rebuilt this engine approx 5000kms ago, had new rings, bearings, cam, lifters, valves, valve springs, Holden ht hg 253 H complete engine period correct for hg - Car Engines & Engine Parts - Pinnaroo, South Australia | Facebook Marketplace To be an original Holden 350 the engine number should start with 11QU or QU. . HT Holden and HG Holden Nasco Replacement engine High Compression ## (for engines supplied post HQHolden release) 253. What Engine Is In My Holden? Decoding Holden Engine Numbers. Standard crankshaft, reground and balanced. Brand New In Box Welcome to pick up from BLUE 253 HOLDEN V8 ENGINE . 9 Mpa, Bursting Pressure: 2 Mpa, Size Tolerance: /-0. 253H5143 would've have been one of the first while 253H10026 was one of the last. It'll be 308 for sure on a 1971 cast block. WR is a blue 253, from WB ute. Has fairly new flat top pistons. The month codes go A=Jan B=Feb etc and "I" is skipped. 308 H. zmggoxkatkltlmghmbvoddevhcfvwrmwsvndjxwcdjyierexrllr