479hp Ford 302 for $4,991 - Best Buck Banger
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The pistons came with file-fit rings that had to be custom fit to each bore. The proper ring gap is actually a calculation based on the bore size and the engine's intended usage. In this case, we chose the street/strip application and set the top ring at 0.018 (bore times 0.0045) and the second ring at 0.020 (bore times 0.0050) using The Ring Machine from Childs & Albert. When checking ring gap, be sure the ring is square in the widest part of the bore. View Related Article
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