That was also said of every LA block in factory print. We now know that as untrue.
Also are the magnum blocks a 1 piece rear main seal block, would a magnum block be a better choice over a LA block? I'm looking for more longevity and mild performance build. Also what would be a good compression ratio for a 300-325 horsepower at the flywheel?
Ether block will do, even more so for that power level. Regular pump gas will do fine @ 9.0-1 w/iron heads. AKA, a stock Magnum engine’s ratio.
A lot would also be with what camshaft your going to use.
