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That is the number of the block. It was used to build 302, 327, and 350 engines in 2 or 4 bolt main from 1969-1980.
There is a machined pad on the passenger side of the block just in front of the cylinder head that should have a combination of letters and numbers that can provide information about the horsepower and application.
Write down the numbers and look it up at this website: http://www.nastyz28.com/chevy-engine-code-stampings.php
What else can I help you with?
What year is a 350 Chevy engine with casting no 3970010 and c5j129384?
casting 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 #
What size Chevy engine has casting number 3970010?
a 350 or 327 that is the question. A 350 or a 327
What year is a 350 Chevy engine with casting number 3970010 and V0725ckl on front of the block?
i called the Chevy dealership and they told me the year
What year is a 350 Chevy engine with casting no 3970010 and 12w297191?
1969
What year and model is a 350 Chevy engine with casting no 3970010 and V0609CNN?
1996
Chevy motor with casting numbers 3970010 a 327 or 350?
That should be a 4 bolt main 350
What year is the Chevy motor with the casting numbers of gm 3970010?
it is a 1969-1979 motor it was used in cars, trucks, and vettes
What year is a 350 Chevy engine with casting 3970010 and 15y146329?
The back of the block will have a series of letters and numbers cast into it. That is what determines the date.
What year is a 350 Chevy engine with casting number 3970010 and v0815tja on front of the block?
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
Does a 350 with casting no 3970010 have a one piece rear main?
Yes, a 350 engine with casting number 3970010 typically features a one-piece rear main seal. This casting number corresponds to a later model small-block Chevy engine produced from 1986 to 1995, during which time the transition to a one-piece rear main seal design was implemented. If you're working on this engine, you can expect it to have the one-piece seal configuration.
What Chevy engine has the casting number 3970011?
What Chevy engine has the casting number 3970011?
What is the year range for a 350 Chevy engine with casting no 3970010?
1969 to 1979 I've seen those blocks up to the mid-80's.
