Re: Hardblock?
On our 267 chevy we took a 305 block and sleeved it down to 3.50. Didn't fill it and had reasonably thick cylinder walls. Still leaks 2 to 4%after 60 runs. Aftermarket block is the best way to go but we ended up with a decent block for half the price of aftermarket.
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Bill Bogues 4696 STK
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