 | 1,095 * |  | Flat lifters, 2-bolt main, block #638, head #191, 193, valve cover bolts through center of cover. | 
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 | 1,795 * |  | 2-bolt main, 350 Chevy, high performance conversion, passenger side dipstick, one piece rear main seal, valve covers held on by four bolts around outside edge, (Stroker). | 
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