Advertised Exhaust Duration

:

319

Advertised Intake Duration

:

299

Amazon Asin

:

B002EE7EW2

Basic Operating Rpm Range

:

2,500-6,100

C.a.r.b. E.o. Number

:

N/A

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.

C.a.r.b. Exemption Reason

:

N/A

California Proposition 65

:

WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

Cam Type

:

Hydraulic Roller

Camshaft Series

:

Thumpr

Engine Family

:

Chevrolet 396-454 c.i. 8 Cylinder (1967-1996)

Exhaust Duration At .050 Inch Lift

:

257

Exhaust Valve Lift

:

0.554

Gaskets Included

:

No

Intake Duration At .050 Inch Lift

:

243

Intake Valve Lift

:

0.57

Kit Type

:

GK-Kit - Cam and Gear Kit

Lifter Type

:

Hydraulic Roller

Lifters Included

:

Yes

Locks Included

:

No

Pushrods Included

:

No

Retainers Included

:

No

Timing Chain And Gears Included

:

Yes

Title

:

Big Mutha' Thumpr 243/257 Hydraulic Roller GK-Kit Chevrolet Big Block 396-454

Usage

:

Street/Strip

Valve Stem Seals Included

:

No