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I put enough nitrous through a 440-1 headed 446, to go 8.40s, at 3300lbs and that was on a stock block............however, I feel I was very lucky to have have never knocked the main webs out of the block and would not test my luck again. The B-1 that follwed that motor, went low 8s, but was built in a Mega-block.

If I was planning to heavily oxide an RB motor these days, even with stock heads, I WOULD upgrade to a good block, without question. Can you get by with a stock block......maybe....if it is prepped right, but with what it will cost to upgrade the stocker, you would nearly have the juice for the good block

Monte

Thaxx's Monte I always wanted to ask that ? on how fast on a stock block but didn't want to be bomb with the new block thing(even thou that is the way to go)just wondering how fast has one gone on a stock block.