what is the best 400 block? what casting number?
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Junior Member
Joined: Jan 2006
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From: Orlando, Fl.
Car: 1985 project SC
Engine: LSX (planning stages)
Transmission: (planning stages)
Axle/Gears: (planning stages)
what is the best 400 block? what casting number?
what is the best 400 block? what casting number?
i am looking for a 400 4bolt main cast iron block to build, for a time i was thinking of getting a dart aluminum block but i figured that cast iron would be better.
what do u all think?
i am looking for a 400 4bolt main cast iron block to build, for a time i was thinking of getting a dart aluminum block but i figured that cast iron would be better.
what do u all think?
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Joined: Dec 2004
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If you're talking stock GM SBC production blocks, the 511 casting is the most sought after. With GM production 400sbc blocks, 4 bolt mains are actually weaker than the two bolts (less webbing). A 2 bolt 511 casting with splayed main caps would be ideal IMHO...
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