Big Mutha’ Thumpr 4/7 Swap 243/257 Hydraulic Roller Cam for Chevrolet 348-409

Additional Attributes:

GTIN: 00036584267775
Grind Number: 47S 299BMTHR-8
Advertised Exhaust Duration: 319
Advertised Intake Duration: 299
Amazon ASIN: N/A
Assembly Lubricant Included: No
Basic Operating RPM Range: 2,500-6,400
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 Gear Attachment: 3-Bolt
Camshaft Material: Billet Steel
Camshaft Series: Thumpr 4 and 7 Swap Firing Order
Engine Family: Chevrolet 348-409 c.i. 8 Cylinder (1958-1965)
Exhaust Duration at .050 inch Lift: 257
Exhaust Valve Lift: 0.571
Grind Number: 47S 299BMTHR-8
Intake Duration at .050 Inch Lift: 243
Intake Valve Lift: 0.586
Lifter Type: Hydraulic Roller
Lifters Included: No
Lobe Separation: 108
Valve Springs Required: Yes

Extended Information:

Emissions : EPA Eligible
Life Cycle Status: Available To Order

Packaging:

Quantity of Each: 1
Package UOM: EA
Dimension: 24.5 x 3 x 2.75 inches
Weight: 11 PG