or 3sp Automatic (C10), WH -- 283 8cyl w/ A.I.R. Big Block Chevy Suffix Codes: CTH - IJ. Look at the first digit, which will be a capital letter. (G10,20), SU -- 230 6cyl w/ A.I.R. For help go to engine Code help or engine decoding FAQ. Chevy II: 396: 375: Mt: L-89 SHP: 1971: CLA: Chevelle: 402: 300: TH400: LS-3: 1972: CLA: Chevelle: 396: 240: Mt: LS-3: 1971: CLA: Monte Carlo: 396: 300: Mt: LS-3: 1972: CLA: Camaro: 402: 240: Mt: LS-3: 1971: CLA: Monte Carlo: 402: 300: Mt: LS-3: 1972: CLA: Camaro: 396: 240: Mt: LS-3: 1972: CLA: Chevelle: 402: 240: Mt: LS-3: 1971: CLA: Chevelle: 396: 300: Mt: LS-3: 1972: CLB: Chevrolet: 396: 210: Mt: LS-3: 1971: … All engines are stamped with an engine ID code which consists of a prefix and a suffix. We appreciate the support and encouragement we have received from our visitors around the world for the past 20 years. & 4BC (C10,20,30 P20,30), WL -- 350 8cyl w/ PG & 4BC (C10,20,30 P20,30), WM -- 350 8cyl w/ T.H.400 & 4BC (C10,20,30 P20,30), WK -- 350 8cyl w/ T.H.400 & 4BC (C10,20,30 P20,30), WP -- 350 8cyl w/ T.H.400 & 4BC (C10,20,30 P20,30), WQ -- 350 8cyl w/ T.H.400 & 4BC (C10,20,30 P20,30), XC -- 350 8cyl w/ PG & 4BC (C10,20,30 P20,30), XD -- 350 8cyl w/ T.H.400 & 4BC (C10,20,30 P20,30), XY -- 350 8cyl w/ T.H.400 & 4BC (C10,20,30 P20,30), XZ -- 350 8cyl w/ PG & 4BC (C10,20,30 P20,30), WA -- 350 8cyl w/ T.H.400 & 4BC (C10,20,30 P20,30), WH -- 350 8cyl w/ M.T. and P.G. or 3sp Automatic (P20), VR -- 292 6cyl w/ A.I.R. & 2BC (C10,20,30 P20,30), WJ -- 350 8cyl w/ M.T. For 1958-65 Chevrolet 6 cylinder & Smallblock V8 (this chart also includes 1965 396 engines) The suffix code for 6 cylinder engines can be found stamped on a pad near the distributor. & 4BC (C10,20,30 P20,30), WO -- 350 8cyl w/ M.T. Big Block Chevrolet casting number. & 4BC (C10,20,30 P20,30), XX -- 350 8cyl w/ M.T. Clutch (C20,30 P20), UH -- 292 6cyl w/ Manual Trans (C10,20 K10,20), UP -- 292 6cyl w/ 3sp Automatic Trans (C10,20), UM -- 292 6cyl w/ Manual Trans (C20,30 K20 P20,30), UQ -- 292 6cyl w/ 3sp Automatic Trans (C20,30 P20,30), WC -- 307 8cyl w/ 3sp Automatic Trans (C10,20), WO -- 307 8cyl w/ 3sp Automatic T.H. (G10,20), WH -- 283 8cyl w/ A.I.R. Chevy Big Block Engine Suffix Codes. & 4BC (C10,20,30 P20,30), XA -- 350 8cyl w/ M.T. If you're looking at the casting # information and it mentions 3970010 "A/F/X/Y/B".... basically this means "it's used in everything", whereas if it simply states "Y"... this means Corvette. & 2BC (C10,20,30 P20,30), ZC -- 350 8cyl w/ M.T. and P.G. Chevy Big Block engines are a series of large displacement engines including: 348 ("W" series only) 366, 396, 402, 427, 454, 502 and, most recently, the 572. Year: Code: Model: CID: HP: Trans: Comment/RPO: 1961: Q: Impala: 409: 360: 4sp: 580, HP Solid Cam/11.25 Grab these three numbers. As new castings are released on late models keep your eyes open for the new numbers. Engine Assembly Date/Suffix Code: The engine assembly code looks similar to this: T0601ED. Big Block Chevy: Machined pad in front of the passenger side cylinder head or above timing chain cover. The suffix portion tells you the original application, vehicle model, engine RPO/ … All these are identified here. Clutch (31-32-36-3800), DA -- 265 8cyl Trademaster w/ Hydramatic Trans (34-35-3700), DB -- 265 8cyl Trademaster w/ H.D. big block Chevy engine suffix codes by minuit10 . Six Cylinder: Passenger side of the block behind the distributor. (C10,20), YJ -- 327 8cyl w/ A.I.R. Don't forget to follow us on Facebook, and if you run a website or write for a blog, please link to our site! & 2BC (C10,20,30 P20,30), ZF -- 350 8cyl w/ M.T. Block casting number, example, 3970010 Engine ID number, example, V0101TAX V=engine assembly plant 01=month of assembly 01=day of assembly TAX=application code Block Date code, example, A012 A=month block was cast 01=day block was cast 2=year block was cast If your block is from a car it will have a partial … (C20,30), XG -- 396 8cyl w/ 3sp Auto Trans & A.I.R. Engine Code Stamping Numbers. The Engine Suffix Code is stamped on a block pad located immediately forward of the right hand or passenger side cylinder head. Often hidden by the alterator. & 4BC (C10,20,30 P20,30), YR -- 396 8cyl w/ Manual Trans (C10,20,30,), This is the content for Layout Div Tag "LayoutDiv19", This is the content for Layout Div Tag "LayoutDiv20", This is the content for Layout Div Tag "LayoutDiv21", This is the content for Layout Div Tag "LayoutDiv22", This is the content for Layout Div Tag "LayoutDiv24", This is the content for Layout Div Tag "LayoutDiv30", This is the content for Layout Div Tag "LayoutDiv31". Year: Code: Model: CID: HP: Comment/RPO/Remark: 1990: 0FC: Marine: 502: 380: LX-2 4 bolt Inboard We are always looking for new castings numbers. HR - TBS TBT - TJS TJT - TXB TXC - UTT UTU - ZY: Chevrolet Suffix Engine big block : 0FC - 9XZ AAA - CTB CTH - IJ IK - … Vent (C10,20), RU -- 164 6cyl w/ Manual Trans Hi Perf (R10), RX -- 164 6cyl w/ Powerglide Hi perf (R10), SG -- 194 6cyl w/ Manual Trans (G1205,06,26), SI -- 194 6cyl w/ Powerglide (G1205,06,26), TA -- 230 6cyl w/ 3sp Trans (C10,20 K10,20), UH -- 292 6cyl w/ Manual Trans (C10,20,30,K10,20), WA -- 283 8cyl w/ Manual Trans (C10,20,30,K10,20), SD -- 194 6cyl w/ A.I.R. Clutch (31-32-36-3800), JB -- 235 6cyl Thriftmaster w/ Powerglide (C10-20), JC -- 235 6cyl Thriftmaster w/ H.D. and P.G. & 2BC (C10,20,30 P20,30), ZB -- 350 8cyl w/ M.T. big block Chevy engine suffix codes . The prefix portion of the ID code tells you the engine assembly plant code, and the engine’s assembly date (for example, 0701 = July 1st….no year is indicated). H.D. (C10,20,30), WR -- 307 8cyl w/ 3sp Automatic Trans (C20,30), ZY -- 307 8cyl w/ 3sp Automatic Trans (K20), WP -- 307 8cyl w/ 3sp Automatic Trans (P20,30), ZX -- 307 8cyl w/ 3sp Automatic Trans (K10,20), YK -- 327 8cyl w/ 3sp Automatic Trans (C10,20), YV -- 327 8cyl w/ 3sp Automatic Trans (C10,20), YH -- 327 8cyl w/ 3sp Automatic Trans (C20,30), YT -- 327 8cyl w/ 3sp Automatic Trans (K10,20), YU -- 327 8cyl w/ 3sp Automatic Trans (K20), YM -- 327 8cyl w/ 3sp Automatic Trans (P20,30), XE -- 396 8cyl w/ Manual Trans & A.IR. Clutch (31-32-36-38-4000), J -- 235 6cyl Thriftmaster w/3sp. The entire engine code contains the assembly plant, month and day. and Powerglide (G10), SP -- 194 6cyl w/ A.I.R. (G10,20), TS -- 292 6cyl w/ A.I.R. This third character represents the carburetor type that was to be used on that engine. The code is stamped above the timing chain cover on big block V8 engines. Clutch (C10,20,30,40,K10,20), KA -- 235 6cyl Thriftmaster special w/ Hydramatic (P20,30), M -- 283 8cyl Trademaster (C10,20,30,K10,20,), MA -- 283 8cyl Trademaster w/ Powerglide (C10,20), N -- 230 6cyl w/ 3sp Trans (C10,20,K10,20), NE -- 230 6cyl w/ H.D. Big Block Chevy Suffix Codes: IK - MZ Abbreviations: AB = Air Brakes, AR = Air Injector Reactor, CA = California, HD = Heavy Duty, hdc = heavy duty clutch, HP = High Performance, LP = Liquid Propane Gas, PG = Powerglide, mt = manual trans, mt-3, 3 speed manual, SHP = Special High Performance, TH = Turbo Hydramatic, ti = transistor ignition. Choose Group to View Big Block Engine Suffix Codes Select BB Suffix Group #* - B* C* - CZZ D* - FZZ G* - KZZ L* - SZZ T* - TZZ U* - ZZZ 348/409 396/402 427 454 502 The entire engine code contains the assembly plant, month and day. The Engine Suffix Code is stamped on a block pad located immediately forward of the right hand or passenger side cylinder head. This letter refers to the plant that manufactured the engine. and P.G. Many Chevy small and big block engines manufactured around 1966 had a three character engine suffix code, where the last character is an ‘H’ or an ‘R’. For help go to engine code help . clutch or 4sp Trans (C10,20,30,K10,20), PG -- 292 6cyl w/ Manual Trans (C10,20,30,K10,20), M -- 283 8cyl w/ Manual Trans (C10,20,30,K10,20), FG -- 153 4cyl w/ Powerglide and Pos. QA. Impala. or 3sp Automatic (C10,20), UU -- 292 6cyl w/ P.G. H.D. 580, HP Solid Cam/11.25cr. Choose Group to View Big Block Engine Suffix Codes. (C10,20), WR -- 283 8cyl w/ A.I.R. 1961. All these are identified here. big block Chevrolet engine suffix codes by minuit10 . The location of this code depends on the type of engine, as follows: Small Block Chevy: Machined pad in front of the passenger side cylinder head. H.D. Numéro figurant à l'arrière du moteur côté boîte de vitesse: accueil engine code. (31-32-36-3800), JF -- 235 6cyl w/ Hydramatic Trans (31-32-36-38-4000), K -- 235 6cyl Thriftmaster w/ 3sp. & 2BC (C10,20,30 P20,30), ZE -- 350 8cyl w/ M.T. and P.G. If you're looking at the engine code - this is already known. Check that you can see the entire engine block stamp. big block Chevy engine suffix codes by minuit10 . Starting in 1970, the 454 big-block V8 engine made its way into many Chevrolet-branded high-performance passenger cars. If your block is from a truck, before the mid seventies, it won't have a partial VIN stamped on it. For help go to engine code help. For help go to engine code help. and Powerglide (P10), SW -- 250 6cyl w/ A.I.R. and Powerglide (P10), SU -- 230 6cyl w/ A.I.R. Year: Code: Model: CID: HP: Comment/RPO/Remark: 1990: 0FC: Marine: 502: 380: LX-2 4 bolt Inboard External site for 73-87 pickup (C10/20, K10/20) engines. This drawing is of the 1967 version of the 302 cid Chevrolet. & 4BC (C10,20,30 P20,30), WN -- 350 8cyl w/ M.T. and Powerglide (P10), TA -- 250 6cyl w/ Manual Trans (C10,20 K10,20), TE -- 250 6cyl w/ P.G. Block Casting Number. and 3sp Automatic (C10,20), VR -- 292 6cyl w/ A.I.R. Clutch (C10,20,30 K10-20), K -- 235 6cyl Thriftmaster Special (P-20,30), KA -- 235 6cyl Thriftmaster Special w/ Hydramatic Trans (P20-30), M -- 283 8cyl Trademaster (C10,20,30 K10,20), MA -- 283 8cyl Trademaster w/ Powerglide C10,20), JB -- 235 6cyl Thriftmaster w/ Powerglide(C10,20), JC -- 235 6cyl Tiftmaster w/ H.D. & 4BC (C10,20,30 P20,30), XW -- 350 8cyl w/ M.T. Vent (G10), NE -- 230 6cyl w/ 4sp Trans and H.D. If you're looking at the casting # information and it mentions 3970010 "A/F/X/Y/B".... basically this means "it's used in everything", whereas if … Clutch (31-32-36-38-4000), JA -- 235 6cyl Thriftmaster w/ Hydramatic Trans (34-35-3700), L -- 265 8cyl Trademaster (31-32-36-38-4000), LA -- 265 8cyl Trademaster w/ Hydramatic Trans (31-32-36-38-4000), LB -- 265 8cyl Trademaster w/ H.D. The Engine Suffix Code is stamped on a block pad located immediately forward of the right hand or passenger side cylinder head. & 2BC (C10,20,30 P20,30), ZD -- 350 8cyl w/ M.T. Gen I small-block Chevy engine. or 3sp Automatic (P20,30), UH -- 292 6cyl w/ Manual Trans (C10,20,30 K10,20,), UT -- 292 6cyl w/ P.G. Dedicated to the preservation and enjoyment of all stock, modified, and custom 1964 - 1987 Chevelles & El Caminos 580, HP Solid Cam/11.25. Clutch (31-32-36-38-4000), WA -- 235 6cyl Thriftmaster w/ Hydramatic Trans (34-35-3700), A* -- 265 8cyl Trademaster (31-32-36-3800), B* -- 265 8cyl Trademaster w/ Hydramatic Trans (31-32-36-3800), M* -- 265 8cyl Trademaster w/ H.D. GM body designation.All these are identified here.Quickly, A = Chevelle, F = Camaro, X = Nova. 1962. If you don't know where to look on your engine for all of the casting numbers, casting dates and suffix codes, see Chevy V-8 … and Powerglide(C10), YS -- 327 8cyl w/ Manual Trans (C10,20,30), YD -- 327 8cyl w/ A.I.R. (31-32-36-3800), JC -- 235 6cyl Thriftmaster w/ 3sp. Some very early smallblocks from the mid 1950 model years had an Engine Assembly Date which only included the last two digits of the year. and Powerglide (C10), YH -- 327 8cyl w/ 3sp Automatic (C20,30), SS -- 230 6cyl w/ A.I.R. Chevy Camaro Big Block Engine Suffix Codes The Engine Suffix Code is stamped on a block pad located immediately forward of the right hand or passenger side cylinder head. Clutch (31-32-36-38-4000), J -- 235 6cyl Thriftmaster w/ 3sp. QA. and Automatic Trans (C10,20), SX -- 250 6cyl w/ A.I.R. & 4BC (C10,20,30 P20,30), XB -- 350 8cyl w/ M.T. Step 3. The entire engine code contains the assembly plant, month and day. GM body designation. Quickly, A = Chevelle, F = Camaro, X = Nova. and Powerglide (G10), SS -- 230 6cyl w/ A.I.R. For help go to engine code help. 409. TAX=application code Block Date code, example, A012 A=month block was cast 01=day block was cast 2=year block was cast If your block is from a car it will have a partial VIN number stamped on the pad, near the engine ID number. Iv series was introduced into production and has remained since cylinder and Small block Chevy Codes. 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