Description
Ferrea Competition Plus Small Block Chevy HS 1.500 Exhaust Valves 4.910 OAL M591 Size: 6 AN Line WEI7155 Size: 6 AN Line 9 5 16 Inch Center To Center Holley 4150 Series 7 degree lock angle valve locks are stamped then hardened for use with milder spring loads in applications with 11 32" diameter single groove valves Ferrea uses the latest technological advances gained through the development of engine valve programs for Formula 1 Product Description: