How much is shipping and when does it ship?

Ground shipping in Canada is free on orders of $100 and up, $9.99 under that.

Can Northern Performance install it?

Yes. Buy it online and have us install it at our Service Centre. The Service Centre is at 1164 Walkers Line, Burlington, Ontario.

COMP Cams Big Mutha' Thumpr 243/257 Hydraulic Roller for Pontiac 265-455

Mfg Part #: 51-602-11
NP#: COM51-602-11
Brand

Universal fit: no vehicle restriction.

$974.99 CAD

Free shipping in Canada

Availability:

Contact [email protected] to check before you order.

Universal Fitment

Book installation at our Service Centre

Does this fit your vehicle?

Description

Big Mutha' Thumpr 243/257 Hydraulic Roller for Pontiac 265-455. Street/strip, needs 9.5:1 compression, 2800+ stall, intake, Gears and headers, very rough idle. Distributor Gear upgrade required.

Advertised Exhaust Duration	319 deg
Advertised Intake Duration	299 deg
Assembly Lubricant Included	No
Basic Operating RPM Range	2,300-6,100 RPM
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 Upgrade	CL51-602-11
Cam Type	Hydraulic Roller
Camshaft Gear Attachment	1-Bolt
Camshaft Material	Billet Steel
Camshaft Series	Thumpr
Engine Family	Pontiac 265-455 C.I. 8 Cylinder (1955-1981)
Exhaust Duration at .050 inch Lift	257 deg
Exhaust Valve Lift	0.519 in
Grind Number	299THR7
Intake Duration at .050 Inch Lift	243 deg
Intake Valve Lift	0.532 in
K-Kit Upgrade	K51-602-11
Lifter Type	Hydraulic Roller
Lifters Included	No
Lobe Separation	107 deg
Usage	Street/Strip
Valve Springs Required	Yes
Brand	COMP Cams
Mfg part #	51-602-11

COMP Cams Big Mutha' Thumpr 243/257 Hydraulic Roller for Pontiac 265-455

Does this fit your vehicle?

Description

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