441 Chevy Heads Porting Exhaust Ports

Porting mods explained on opening up stock castings to Fel-Pro 1404 Exhaust Gasket. Visit my website at www.headbytes.com and go to current work to see a more detialed view and call 615-212-7168 for porting information.

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• #441_castings
• #using_fel_pro_1404_to_scribe