Small block chevy engine block casting and code identification. Engine code years cid application engine vin hp bbl gm body comments. While replacement and crate engines do not have this identification. These are also located on the drivers side of the engine, at the back of the head on the transmission mounting flange. V8 on both small and bigblock v8s, the engine id codes are found on a machined pad on the front passenger side of the block just below the head. These blocks are referred to as the gen i smallblock, the subsequent gen ii lt, and generation iiiiv ls, along with the current generation v ltecotec3 engines. Small block chevy sbc engine suffix codes big block chevy bbc 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. Look for the identification number on the engine block.
This list of gm engines encompasses all engines manufactured by general motors and used in. Small block chevy engine block casting and code identification all engines are stamped with an id serial number showing plant code, production date, and suffix code. Machined pad in front of the passenger side cylinder head. The 195556 used a different intake gasket than any 1957 due to the smaller ports. Unfollow small block chevy engine to stop getting updates on your ebay feed. The entire engine code contains the assembly plant 1 digit, month 2 digits, day 2 digits and the engine suffix code 1 to 3.
On a small block chevrolet, this stamping code is located on a flat pad in front of the passenger side cylinder. How to identify a chevy engine by numbers it still runs. The engine block casting code is one of the best ways to identify an engine block. Numerous modifications have been made over the years to the big block. Production of the original small block began in the fall of 1954, for the 1955 model year, with a displacement of 265 cid, growing incrementally over time until reaching 400 cid in 1970. Vehicle user interface is a product of apple and its terms and privacy statements apply. I now know this block was a tonawanda casting and has been verifieddocumented by a 1967 camaro with a casting date of december 16, 1966 and a buildengine code stamping. This drawing is of the 1967 version of the 302 cid chevrolet. Casting numbers for chevy v8 engines can be found at. The chevy smallblock v8 interchange manual guides you through the myriad options for building a highperformance engine from factory parts and junkyard scores. The big block chevy was introduced in 1965, beginning at 396.
Getting ready to rebuild and would like to know if this is the original engine for the car. Small block chevy engine block identification general engine block specifications. This series of seven to eight digits begins with a letter and is stamped directly on the engine. All engines are stamped with an id serial number showing plant code, production date, and suffix code. The location of this code depends on the type of engine, typically as follows. Chevy casting number identification including block casting numbers, cylinder head casting numbers, crankshaft and intake casting numbers. The chevrolet small block engine is a series of automobile v8 engines built by the chevrolet division of general motors using the same basic, and for a v8, smaller engine block. It includes more than 25,000 part numbers, specifications, dates, and technical details on blocks, crankshafts, rods, pistons, heads, valves, manifolds, and much, much more. Like all chevrolet performance smallblock crate engines, its built with a castiron block. Chevrolet introduced the w series engine in 1958, starting out at 348 cid.
Engine dolly, steel, black powdercoat, wheels included, chevy, big small block, each. The chevy small block v8 interchange manual guides you through the myriad options for building a highperformance engine from factory parts and junkyard scores. Small block chevy engine block casting and code identification chevy v8 engine serial numbers. Most chevy v8s are stamped with the vin number of the car on block just in front of the passenger side cylinder head. Engine code stamping numbers all engines are stamped with an engine id. Decoding chevrolet vin, trim tags, cowl tags, engine, engine block casting. Big block chevy engine block identification by minuit10. If you have any documented info that can be added to these pages. Smallblock crate engine comparison performance chevrolet.
Small block chevy engine block identification general engine block specifications while 6 different bore size blocks have been produced, the small block engine can be classified into 3 bore sizes and 3 main bearing sizes. Four bolt main blocks are desirable in high performance applications because the extra strength. On a small block gm v8, it is stamped in front of the cylinder head on the. The chevrolet performance smallblock crate engine is one of our best seller and its easy to understand why.
If you are looking for the actual chevy engine codes that are stamped into the block during assembly, nasty has an excellent block stamping number decoder. Chevy small block engine suffix codes cczz chevy camaro. Chevy casting number identification block casting numbers. The suffix tells you application, original model, engine rpo, and hp and transmission that were originally mated to the engine. Quick links to decode engine suffix codes, interior codes, paint codes, etc. This is indicated by the fifth digit in the vin being a k. Info compiled ray buck 09232000 since there are several numbers on the block, we need to identify the ones were gonna use.
Air injection reactor pv positive crankcase at auto trans ventilation e. Learn how to find and decipher your chevy motors serial. Chevy small block factory engine identification code guide. Ac air conditioning od overdrive ah aluminum heads pg powerglide as air spension ps power steering a. Referred to as a smallblock for its comparative size relative to the physically much larger chevrolet bigblock engines, the family spanned from 262 cu in 4. Chevrolet chevy small block gen i parts and accessories. Decode small block chevy engine suffix codes with our sbc casting number guide.
Then he revises his original statement of was used mid to late in the 1967 model year in the following footnote. Chevy small block factory engine identification code guide 195599 msa1. Decoding small block chevy engine suffix codes and stamped. Info compiled ray buck 09232000 since there are several numbers on the block, we need to identify. On the v8 engines, it is on the top of the block, at the back, above the bellhousing area. On a small block gm v8, it is stamped in front of the cylinder head on the passenger side.
The entire engine code contains the assembly plant, month and day along with the engine suffix code. Car is a 1961 chevy impala convertible engine casting3756519 engine id on front pad of blockf092id no partial vin number that i can find. If youre looking at the engine code this is already known. Four bolt main blocks are desirable in high performance applications because the extra strength of the additional. This casting number is usually found at the rear of the block on the left or drivers side on top of the bellhousing flange. Chevy small block v8 engine identification monaro shrine. Locate the chevy identification number on the engine block. Chevrolet performances most popular small block crate engine see images, dyno specs.
Designed by ed coles group at chevrolet to provide a more powerful engine for the 1955 corvette than the models original blue flame inline six, the 162 hp 121 kw 2barrel debut version went from drawings to production in just 15 weeks. The engine serial number is located on the left side at the rear of the engine cylinder block 1 and is sted or laser etched onto the block at the. The identification numbers on a chevy engine with a small block v8 are adjacent to the cylinder heads on the passengers side, close to. The chevrolet smallblock fundamentally changed the world of engine performance more than six decades ago, and this icon of american horsepower is pulling stronger than ever in chevrolet performances diverse range of crate engines. The point of this article is to help you figure out how to decode stuff. A quick reference catalog of chevrolet engine block casting numbers including the w engine blocks. The block casting number on small block and big block chevy v8 motors is located on a ledge found at the rear of the block, most often on the drivers side. Four bolt main blocks are desirable in high performance applications because the extra strength of. This block was used mid to late in the 1967 model year. General decoding information this topic can be somewhat confusing, especially with the amount of information available and the interpretation of it.
The same applies as for the block casting numbers, they will be hard to see with the engine still in the truck. Suffix codes for small block v8s are stamped on a pad located on the front of the passenger side cylinder head as shown in this example. This was eventually increased to the now legendary 409 engine. High power is the maximum rate hp this block was used for, low power is the lowest rated horsepower rpo engine the block was used in.
Chevrolet big block engine production suffix codes chrysler hemi engine codes all engines are stamped with an engine id code, consisting of assembly plant code, production date and suffix code. Select the navigation view you prefer when narrowing your search. The block casting number on small block and big block chevy v8 motors is located. On the straight 6 engines, it is on the back on the passenger side of the block, hidden or almost hidden by the starter motor, or along the middle bottom of the block, possibly hidden by an engine mount. Full functionality requires compatible bluetooth and smartphone, and usb connectivity for some devices. The first one i usually use is the block casting number which is located at the back of the drivers side cylinder head and will look something like. Small block chevy specifications, helpful tips for the engine that dominates the world of motorsports. Chevy small block engine block casting numbers notes for below.
While 6 different bore size blocks have been produced, the small block engine can be classified into 3 bore sizes and 3 main bearing sizes. Chevy casting numbers engine repair how to repair, rebuild. The engine code is different than the longer vin number, which includes information. Small block chevrolet engine suffix codes part trace. Depending on the size of the engine, the location of the identification number will vary. All engines are stamped with an engine id code, consisting of assembly plant code, production date and suffix code. Chevy small block identification help me figure out what. Engine block casting number by number big block chevrolet coming engine block casting by year2 and 4bolt main id engine block stamping id datece chevrolet engine information engine suffix codes v8 chevelle specific 1964 through 1972 by year engine suffix codes v8 all chevrolet 1955 through 1975 by code. Chevrolet small v8 cylinder block casting numbers 19551985 these listings are always a workinprogress. Machined pad in front of the passenger side cylinder. For help go to engine code help or engine decoding faq. The primary pieces of information youll decode are the. The suffix code for 6 cylinder engines can be found stamped on a pad near the distributor.
Chevy small block factory engine identification code guide 195599 msa1 mark s allen on. Decoding the id numbers on chevy smallblock motors. These blocks are referred to as the gen i small block, the subsequent gen ii lt, and generation iiiiv ls, along with the current generation v ltecotec3 engines. This pad is actually an extension of the block deck surface. Requires compatible iphone and data plan rates apply. If you have any documented info that can be added to. Look behind the distributor on the passenger side of the block if it is a six cylinder gm motor.
The chevrolet smallblock engine is a series of v8 automobile engines used in normal. The chevrolet smallblock engine is a series of automobile v8 engines built by the chevrolet division of general motors using the same basic, and for a v8, smaller engine block. The chevrolet smallblock engine is a series of v8 automobile engines used in normal production by the chevrolet division of general motors between 1954 and 2003, using the same basic engine block. Chevy smallblock decoding ray the rats chevy asylum. The big block chevy was introduced in 1965, beginning at 396 cid. General motors 90 v6 engine derived from the chevrolet smallblock v8. This ledge is below the deck of the block and the ledge forms the mating surface between the block and the transmission bellhousing.