COMP Cams Ultra Pro Magnum XD Rocker w/ 1.5 Ratio for Chevrolet SBC w/ 1/2" Stud 1810-1

Specifications:

• BrandCOMP Cams
• Part Number1810-1
• GTIN00036584259459
• Rocker Arm Ratio1.5
• Rocker Arm Material8650 Chromemoly Steel
• C.a.r.b. Exempt For California Certified Vehicles Manufactured Before 1965?Yes, But Must Meet Tailpipe Emission Standards For Year Of Vehicle.
• C.a.r.b. Exempt For Federally Certified Vehicles Manufactured Before 1967?Yes, But Must Meet Tailpipe Emission Standards For Year Of Vehicle.
• C.a.r.b. Exempt For Foreign Vehicles Manufactured Before 1967?Yes, But Must Meet Tailpipe Emission Standards For Year Of Vehicle.
• C.a.r.b. Exempt For On-road Vehicles?No
• C.a.r.b. Exempt For Racing And Off-road Only Vehicles?Yes, But Must Be A Race/competition Only Vehicle.
• Engine FamilyChevrolet 262-400 C.i. 8 Cylinder (1958-1998)
• Maximum Valve Spring Open Pressure1000
• Rocker Arm SeriesUltra Pro Magnum Xd
• Rocker Stud Diameter1/2