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COMP Cams K51-602-5 Big Mutha' Thumpr Hydraulic Flat Cam K-Kit for Pontiac 265-455

(Pontiac GTO 1964-73, Firebird 1967-81, Grand Prix 1962-81, Grand Am 1973-75, 1978-80, Bonneville 1957-81, LeMans 1963-81, Catalina 1955-81 + 30 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

K51-602-5
14 reviews
Sale Price

$781.95

Estimated ship date Tuesday, November 24

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Product Details

The COMP Cams Big Mutha' Thumpr K51-602-5 is a complete camshaft installation kit designed specifically for Pontiac 265-455 cubic inch V8 engines. This hydraulic flat tappet camshaft delivers an aggressive 243/257 duration split that produces the signature Thumpr lope at idle while providing strong mid-range to top-end power gains.

Complete K-Kit Includes:

  • Hydraulic flat tappet camshaft with 243/257 duration
  • Hydraulic lifter set
  • Performance valve springs engineered for cam profile
  • Steel valve spring retainers
  • Valve locks (keepers)
  • Valve stem seals
  • Timing chain and gear set
  • Assembly lube for proper break-in
  • Installation instructions and COMP Cams decals

This K-Kit provides everything needed for a complete camshaft upgrade in one package, eliminating the guesswork of component matching. The Big Mutha' Thumpr series is ideal for street/strip applications where aggressive sound and strong performance are desired. Designed for engines with aftermarket intake manifolds, headers, and higher stall converters to maximize the cam's performance potential.

Products specifications

Fits

Pontiac GTO 1964-73, Firebird 1967-81, Grand Prix 1962-81, Grand Am 1973-75, 1978-80, Bonneville 1957-81, LeMans 1963-81, Catalina 1955-81, Tempest 1961-70, Ventura 1960-61, 1971-75, 1977, Parisienne 1967-68, 1972-74 + 27 more models

Advertised Intake Duration

295

Basic Operating RPM Range

2,500-6,400

Cam Type

Hydraulic Flat Tappet

Exhaust Valve Lift

0.486

Intake Valve Lift

0.501

Intake Duration at .050 Inch Lift

243

Exhaust Duration at .050 inch Lift

257

Camshaft Material

Cast Iron

Kit Type

K-Kit - Complete Kit

AMAZON ASIN

B005H89TFW

Engine Family

Pontiac 265-455 C.I. 8 Cylinder (1955-1981)

Assembly Lubricant Included

Yes

Lifter Type

Hydraulic Flat Tappet

Prop 65

WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

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. 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.

Gaskets Included

No

Lifters Included

Yes

LOBE SEPARATION

107

Valve Springs Included

Yes

Usage

Street/Strip

Advertised Exhaust Duration

313

Camshaft Series

Thumpr

Fast service and the cheapest price on the web. My item arrived on time and in good shape. Order Number: 11517<br>

Awesome so far !!!!

So far so good

Was easy to find an the cheapest I seen also shipped pretty quik

Fast and easy!

Best prices on every item I have purchased. Shipping is quick and items are factory fresh and as described. Great place to shop...always check their store first!

Good customer service!!! I ordered a greddy boost controller. Took for ever but they explained why.. And everything is all good!!

needs to be easier to make sure part numbers are correct for shocks for lifted and unlifted vehicles

I ordered an AEM intake from Autoplicity because they had the best prices but it was on backorder from AEM. Autoplicity emailed me to let me know right away and sent me a confirmation when it was back in stock. I'll be shopping here again!

I like the service and cheap price i will recommend autoplicity.

Fantastic seller! I ordered a full set of brakes for my car (at the cheapest price I could find around the net!) and had them within two days of placing the order...incredibly fast and professional.

The agent i spoke with was very helpful and the product was very well priced. Had the product i wanted in stock, Very fast shipping! I couldnt believe that i got my package so quick. Very good customer service. I will definetely be ordering from this website again!

Quick, Easy, No Hassle and my product arrived fast and in excellent conditon. Prices are some of the best around. I have already placed 2 more orders with them.

found product I was looking for at a good price

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