Where can I buy a 4 bolt main block in CA, ASAP?
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Joined: Aug 1999
Posts: 449
From: Where St. Augustine won't grow
For a 383, the a standard bore block needs to be bored .030" over. Since this block is already .030" over and needs a clean up, it will be a bit bigger.
On that note, with a 3.75" stroke:
.040 = 385
.060 = 388
Factory four bolt blocks are damn hard to find, but IMHO, they're over-rated. Fitting aftermarket caps requires align boring/honing just like with a two bolt block, so maching costs remain the same.
Or you could just stick with stock caps
On that note, with a 3.75" stroke:
.040 = 385
.060 = 388
Factory four bolt blocks are damn hard to find, but IMHO, they're over-rated. Fitting aftermarket caps requires align boring/honing just like with a two bolt block, so maching costs remain the same.
Or you could just stick with stock caps
Last edited by Jim S. '95 Z28; Mar 14, 2003 at 11:52 PM.
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