
2.450″ x 2.000″ x .375″ Iron Valve Seat, No Radius (Nost 426) (each)
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Muscle Head Stage V: Program V3-P1-F12, 2.450″ x 1.900″ valve dia. 102cc chambers. Std Copper intake valve seats, B5 Exhaust valve seats, .025″ Jr Hoops & 9/16″ Head stud inserts. 2.600″ lifter spread, 12ø Exhaust Flange. (PLR only)(pair)
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Muscle Head Stage V: Program V3-P2-F12, 2.450″ x 1.900″. 102cc chambers. Std Copper intake valve seats, B5 Exhaust valve seats, .025″ Hoops, 5/8″ & 9/16″ HS inserts. 2.600″ lifter spread, 12ø Exhaust Flange. (pair)
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