Quote:
Originally Posted by Run to Rund
The 403 guys on ROP generally run a main cap girdle to help hold the windowed main block together. J&S and others have girdles. I suspect the DX block is overkill and very heavy, but a 350 block sleeved might be best. Of course, a block with .921 lifters would help with a radical profile cam vs. the .842" lifter blocks.
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Jeff is correct, you have to run the OEM lifter diameter. You cannot modify the oil pan externally in Stock Eliminator, therefore, you cannot run the commercial girdle available for Olds engines. The best bet is like Jerry and other have done; sleeve an early high nickle Oldsmobile block or find a NASCAR block with the small mains and small bore.