You need the date code on the side of the block it will be a series of numbers and letters first its the month, then day, then year Read More What year is the Chevy motor with the casting numbers of gm 3970010?
Read More What year is a 350 Chevy engine with casting number 3970010 and v0815tja on front of the block? Some of them were 4-bolt mains and some were just a 2-bolt main engine. That engine could be anywhere from a 1969 to 1972 350. Read More What year is a 350 Chevy engine with casting no 3970010 and 13w221249? The back of the block will have a series of letters and numbers cast into it. I called the Chevy dealership and they told me the year Read More What year is a 350 Chevy engine with casting 3970010 and 15y146329? What year and model is a 350 Chevy engine with casting no 3970010 and V0609CNN? What year is a 350 Chevy engine with casting no 3970010 and c5j129384?Ĭasting number 3970010 is a 350 block from 1969 - 1979 but in 1969 302 and 327 have the same casting # and im not to sure about the other # Read More What year is a 350 Chevy engine with casting number 3970010 and V0725ckl on front of the block? Both blocks have a stock bore of4.00 inches. If it's 3 and a half, you've got a 350, if it's 3and a quarter, you've got a 327. Thenmeasure from the outer diameter of the piston to the top of thecylinder wall. To measurethe stroke you will need to remove one of the heads, and turn thecrank until one of the pistons is BDC (bottom dead center). 327's have a stroke of 3.25 inches while 350'shave a stroke of 3.48 (basically 3 and a half) inches. Run a search with the numbers you find there for moreinformation.Īlternatively, if the number cannot be read for some reason,(this happened to me) and if you're not going to check the mainbearing size, (which requires removing the oil pan) then you canmeasure the stroke. It's on a machined pad only found on that side of theengine. It's on the front of the engine, just in front of the passengerside head. The date code generally has a letter followed by two or three numbers. The date code is located in the same area as the casting number on the Chevy V8 engines. There may be a partial VIN number in one string of letters and numbers and the suffix code will be at the end of a second string of letters and numbers. For example, a Chevy engine with the identification number S1029CTY was manufactured in Saginaw (S) on September (10) the 29th (29). The prefix explains the location as well as the date of the Chevy engine's manufacture.
The identification number contains a combination of numbers and letters and is seven or eight characters.
#Chevrolet 235 engine serial number how to#
How to Identify a Chevy Engine by Numbers. To determine exactly what you have, you need the block 'suffixcode'. If it's a 4 bolt main, then you know it's a 350. Then from 1969 - 1979 they made 350's with this number and theywere either 2 or 4 bolt main. In 1968 they made 327's with this casting number but they wereonly 2 bolt main.
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