Quote:
Originally Posted by AZCamaroFan
i wonder why they had the bigger blocks in the old days. did they not think it was safe to bore out the smaller blocks? Eventually Chevrolet got it to 400ci. Today the LS block is aluminum, and i think it's an even smaller block than the original , isn't it?
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Really large bore small blocks had cooling issues, which led to other restrictions on their output. Meanwhile the big blocks of the same displacement (or larger) didn't have the problems so they could run stronger and longer.
"It's been said there are 3 constants in this world: death, taxes, and 4.4" bore spacing on Chevy Small Blocks"