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Old 10-02-2003, 09:06 AM
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327 block 350 crank

I have received a partially rebuilt motor and had to do some checking on it. I was told that I was getting 350 (which essentially it is because it had a 350 crank), but it is a 327 block with a 350 crank (Large Journal) and it did not have the lifters or pushrods. The crank is absolutely brand new. The engine has been bored for new pistons and Most everything has been put together.
I have been told that I should only get the pushrods for a 327 ... but after some research, I believe that I may be able to put 350 pushrods in. I don't want to ruin this motor by "slapping" in the wrong rods.

Any help or tips is greatly appreciated.
Another question would be ... should I use stock lifters for 327 also?

Thanks

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Old 10-02-2003, 09:47 AM
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302,327,350 blocks are all 4" bore blocks. They have the same deck height and main journal dimensions for blocks cast 1968 and newer. So while that block MIGHT have been used for a 327 at some time in it's life it doesn't matter when you stuff a 3.48" stroke crank in it, now it's a 350.

Pushrod length is the same for all blocks so you won't have a problem with that unless the block and heads have been decked and shaved quite a bit which might require shorter rods. If you are running your basic rebuilt 350 small block combo stock length rods should be fine.

Connecting rods are the same length at 5.7" for all engines except the 400 so you won't run into problems there either.
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Old 10-02-2003, 09:54 AM
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Thank you very much Goldduster360. I don't know very much about engines and was getting stressed.

The same goes for the lifters right?
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Old 10-03-2003, 08:55 AM
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Yeah, lifters, water pump, heads, everything for an engine cast before 1986 will work for sure. You should get a couple of good chevy books at your local book store. Look for the "Chevy Parts Interchange" book it's a paperback, costs about $20.00. Read it from cover to cover 3 or 4 times and you will be a small block expert. Good Luck with your engine job.
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