Big Block Chevy, BMP, World Merlin early Merlin aluminum, Brodix -2,-4,-2X,-3X, Canfield, Holley, Big Duke w/ 5 long exhaust studs per head (All Black Oxide)
5 long exhaust bolts per head. Use on Mark IV blocks
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1726 Hibiscus DriveEdgewater, Florida 32132
United States of America