Exhaust Valves Series:Race Flo. Underhead Angle:Pro Flo 10 deg. Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.
Manley Exhaust Valve Set 10721-8; Street Flo .250 Tip, 4.911 x 1.500 for SBC
Manley Exhaust Valve Set 11843-8; Severe Duty 1.88 x 5.422 Stainless for BBC
Manley Chevy LS1 / LS2 LS6 Head 1.55" Race Master Exhaust Valve Set Of 8 11361-8
5-Manley Exhaust Valve Severe Duty 5.354X1.880 Big Block Chevy 11563 set of 5
10765 8 Manley 107658 Exhaust Valve Set Of 8
