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This is an SB2 Chevrolet engine that Keith Dorton of Automotive Specialists is building for an ARCA race team. Many of the components, including the block and heads were previously raced in the NASCAR Sprint Cup Series, but it uses the same head bolt pattern as a standard Chevy small-block. Here, Dorton is installing the head studs and torquing them to 20 ft-lb. When using head studs, the torque into the block isn’t critical but you do want to make sure that they don’t come loose. If they aren’t fully seated they can cause bore distortion when the head is tightened down. View Related Article
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