COMP Cams Big Mutha' Thumpr 243/257 Hydraulic Flat Cam for Chevrolet Small Block 12-602-4

Specifications:

• BrandCOMP Cams
• Part Number12-602-4
• GTIN00036584175278
• Camshaft Gear Attachment3
• Lifter TypeHydraulic Flat Tappet
• Grind Number295th7
• Exhaust Valve Lift0.486 in
• Intake Valve Lift0.5 in
• Valve Springs RequiredYes
• Exhaust Duration At .050 Inch Lift257 dd
• Intake Duration At .050 Inch Lift243 dd
• Advertised Exhaust Duration313 dd
• Advertised Intake Duration295 dd
• Cam TypeHydraulic Flat Tappet
• Lobe Separation107 dd
• Assembly Lubricant IncludedYes
• Basic Operating Rpm Range2,500-6,400
• 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.
• Cam And Lifter Kit UpgradeCl12-602-4
• Cam, Lifter And Gear Drive UpgradeGk12-602-4
• Camshaft MaterialCast Iron
• Camshaft SeriesThumpr
• Engine FamilyChevrolet 262-400 C.i. 8 Cylinder (1958-1998)
• K-kit UpgradeK12-602-4
• Lifters IncludedNo
• UsageStreet/strip