Quote:
Originally Posted by Dragncar
Boss Bird and Chief both run the heat treated solid IA2A block. It has shown to take anything thrown at it.
KRE did have some of the early blocks, well you know how that went.
It has slowed people down. When you rip every main out of a race iron block it tends to do that. Just because the crank actually did not end up on the pavement does not mean the block did not fail.
Pics don't lie. Not posting so don't ask. Cast iron has its limits.
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Both Chief and Boss Bird ran iron IA2 blocks before recently switching to the solid alum blocks.
Again a skirted block is nice but i dont see performance being effected just reliability