![]() The cookies is used to store the user consent for the cookies in the category "Necessary". This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. Most casting number guides range in price from $ 15-30 US. In either case, small or large, you will find them adequate and well worth the price. Others come in larger standard book sizes and will generally include more pictures and diagrams than the smaller text only sizes. Some of the most useful decoders come in smaller sizes that will fit in a coat pocket or tool box, which comes in handy for junk yard scavenger hunts or swap meets. Some casting number decoders only cover the classic years from the 50's through the 80's and may not provide information on late model engines. ![]() Be sure to look for the years of coverage when selecting a decoder. Casting number information for intake and exhaust manifolds, or cylinder heads is generally included in the engine block casting number decoder books. In general when shopping for casting number decoders you will find casting numbers and suffix codes in separate books. They can tell you which car the engine was originally installed in, the year, and even the option series for the car. The suffix codes were numbers stamped into the engine block at assembly time. The Chevy small block casting date would help you narrow down which the block was cast if use of the casting number spanned decades, such as the late 60's through the early 70's. Some casting numbers were used for several different models so when in doubt you will need to lookup the suffix code stamped into the engine. This number will indicate some notable design specs such as 2 or 4 bolt main bearing caps, what models of cars it was installed in, the years it was installed in those cars, and in some cases the horse power rating. The Chevy small block engine casting number can be found on the bell housing section of the block just behind the passenger side cylinder head. To know for sure you would need to lookup the casting numbers. You are looking for an engine core for your classic car restoration project and you run across a 65 Impala SS with an engine in it. You are spending the day at a "U-Pick" junk yard.There is a set of camel hump heads he says are off a 327 that "came out of a Corvette." Or … you are at a swap meet and a guy has a few engine parts he's selling.You are looking at a 66 Chevelle that someone has for sale and want to know if it has the correct engine.You would use an engine casting number decoder book in a few scenarios. You can use Chevy small block casting numbers to ensure the accuracy of parts on your classic car restoration, or if you are car hunting, to ensure you are getting what you are paying for. They are used to identify the series of engine castings designed for a specific model of car. So it seems that the engine, trans and carb could all be from 68 or 69.Small block Chevy casting numbers are engine series numbers cast into the engine block, cylinder heads, intake and exhaust manifolds. Or I guess everything could be from 1968 and I could have a TH350 that came from a different donor car than the engine.Ĭan anyone glean any more information from the numbers? I'd really like to determine what what make/model/year of car served as the donor for this engine and transmission.Ģ839 = 283rd day of year, or October 10, 1969 If anything, I would expect the numbers to be the other way around - the engine casting code should be earlier than the VIN model year. I'm a little confused by the fact that the block casting number suffix of "HN" seems to state that the block was cast in 1989, while the VIN states that the car was some model of 1968 Chevy. The VIN Code 18F232087 seems to decode as: I have to admit I didn't think to look up the tranny numbers yesterday. The trans is definitely a TH350, so if the engine and trans were put in together from the same donor vehicle, then it looks like I might have the 1969 engine/transmission. 1969 350 350 4 bbl turbo 350 high performanceġ968 327 250 4 bbl powerglideIt looks like I've got either the first engine (1969, 300 hp) or the 3rd engine (1968, 250 HP).
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