Pontiac GTO 400 Engine Block Build Up - Poncho Honcho
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The 87cc combustion chambers will provide 10:1 compression when combined with the 4.181 bore, the flat-top piston's compression height and valve reliefs, 0.005 piston-to-deck height, and the volume of the head gasket. A set of 2.11/1.66-inch stainless valves is included when the assembled head is purchased. View Related Article
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