Thread: chev 302's back from the dead

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Don't they know that there's a bearing set to put the 350 sized crank into the small journal block?

Originally Posted by jerry clayton

Don't they know that there's a bearing set to put the 350 sized crank into the small journal block?

yep the nascar guys run them small mains

Originally Posted by jerry clayton

Don't they know that there's a bearing set to put the 350 sized crank into the small journal block?

Jerry,that was my point also.

Originally Posted by jerry clayton

Don't they know that there's a bearing set to put the 350 sized crank into the small journal block?

Thats not possible to put a large journal 350 or 327 crank into a small journal 265-327 block unless you have the block mains machined (line bored) to fit the large journal crank. unless you ment you can buy (from where?) a bearing spacer set for putting a small journal 283 crank into a large journal 327 or 350 block making a 302? otherwise the only bearing spacers we've seen is for putting a 350 or large journal 327 crank into a 400 block since a 400 has larger main journals than a 350 or large journal 327. But the small journal engines were the 265-283-302-327 1967 and older when the 350 came out in 1968 chevrolet switched to the large main journals 307 and up. 1965 an older 265-283-327-348-409 had stock forged steel cranks and its rare to see a stock motor with a forged crank after 1965 when they switched to using stock cast iron cranks.
But otherwise its what i talked about at the machine shop with the guys and i thought i'd share it with you all.