Originally posted by Alan76
My engine project is based in a 2 bolt block, and now i'm affraid about how much power will this block handle?
a 2 bolt block can handle alot more than you would expect.

for more strength you can buy a set of splayed 4 bolt main caps, and drill and tap the block. this would be much stronger than any factory stock 4 bolt block.

in a "chevy high performance" magazine they sprayed a junkyard 350 with NOS. and was able to get quite a bit of power from it before it blew. the crank didnt get hurt, only the stock cast pistons suffered the blow.

I would say the 2 bolt block can handle around 430 hp and under, but not with stock pistons and heads, would need some upgraded parts to prevent engine failure.