Small Block LS Engine Dyno Testing Part II - Big Power, Small Budget
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The block is fitted with two new GM cylinder-head aligning dowels (PN 12570326) per bank, the block surface is wiped clean with acetone, and GM MLS LS7 head gaskets (PN 12610046; sold individually) with a bore size of 4.125 inches are placed over the dowel pins. View Related Article
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