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In-Store Pickup Location

COMP Cams Xtreme Energy Retrofit Cam and Lifter Kits K12-432-8

COMP Cams K12-432-8 - COMP Cams Xtreme Energy Retrofit Cam and Lifter Kits

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Cam/Lifters/Valvetrain, Hydraulic Roller Tappet, Adv. Duration 282/288, Lift .510/.520, Chevy, Small Block

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  • Order this item and get free delivery and handling on your entire order! Offer excludes truck freight and oversize fees. Valid on orders shipped in the contiguous United States.

Brand: COMP Cams

Manufacturer's Part Number: K12-432-8

Part Type: Camshaft Kits

Product Line: COMP Cams Xtreme Energy Retrofit Cam and Lifter Kits

Summit Racing Part Number: CCA-K12-432-8

UPC: 036584034100

Cam Style: Hydraulic roller tappet

Basic Operating RPM Range: 2,200-5,800

Intake Duration at 050 inch Lift: 230

Exhaust Duration at 050 inch Lift: 236

Duration at 050 inch Lift: 230 int./236 exh.

Advertised Intake Duration: 282

Advertised Exhaust Duration: 288

Advertised Duration: 282 int./288 exh.

Intake Valve Lift with Factory Rocker Arm Ratio: 0.510 in.

Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.520 in.

Valve Lift with Factory Rocker Arm Ratio: 0.510 int./0.520 exh.

Lobe Separation (degrees): 110

Grind Number: CS XR282HR-10

Computer-Controlled Compatible: No

Lifters Included: Yes

Lifter Style: Hydraulic roller

Valve Springs Included: Yes

Outside Diameter of Outer Spring (in): 1.430 in.

Retainers Included: Yes

Locks Included: Yes

Valve Stem Seals Included: Yes

Timing Chain and Gears Included: Yes

Timing Chain Style: Double non-roller

Assembly Lubricant Included: No

Pushrods Included: Yes

Rocker Arms Included: No

Gaskets Included: No

Valve Springs Required: No

Quantity: Sold as a kit.

Notes: Retro-fit: Designed for early non-roller blocks. Requires thrust button and wear plate.

In-Store Pickup: Choose In-store pick-up (OH, NV, GA, TX) on our web site.

COMP Cams Xtreme Energy retrofit cam and lifter kits are built to take advantage of the latest cam technology, to provide maximum performance. Whether your use is off-roading, towing, or street performance, there is an Xtreme Energy kit available for you. By using an aggressive lobe profile, these kits provide better throttle response and more top-end horsepower than equivalent cams from other manufacturers, while delivering increased engine vacuum.


Questions & Answers Ask a Product Question

Does this product require a torrington bearing on the timing chain? Is a wear plate required? What is required to install a retrofit roller cam other than what comes in this kit. I am lost on what i need to prevent wear and cam walk. Thanks

Asked by PAYTON on February 01, 2019


Thank you for your question. COMP Cams K12-432-8camshaft and lifter kit will not require the use of a Torrington bearing with the included timing chain and gear. COMP Cams 200 is the thrust button and COMP Cams is 201 is the wear plate for use with this camshaft kit.

Summit RacingSummit Racing Answer - March 08, 2019

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Does this kit work with Weiand 177? Will it work with double hump heads and 1.5 roller rockers

Asked by JAMES on September 10, 2018


Thank you for your question. COMP Cams K12-432-8 camshaft and lifter kit will work with a Weiand 177 blower, 1.5 ratio rocker arms and double-hump cylinder heads.

Summit RacingSummit Racing Answer - October 04, 2018

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Will this kit fit in my sbc 383 stroker engine? If not what kit would you recommend?

Asked by DAVID on March 26, 2018


There's a lot to that question. With strokers you may have to consider a small base circle cam. The simple answer is yes, it's intended for a small block Chevy. The lift has to be taken into consideration to make sure you don't slam a valve into a piston. Always consult a reputable machine shop if you have questions for a specific application.

WILL from SC answered on May 03, 2018

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Would this cam work with summits SUM-150100-30 roller block?

Asked by MATTHEW on January 23, 2018


Thank you for your question. The Summit Racing 150100-30 engine block accepts a factory roller cam and lifter kit. The COMP Cams K12-432-8 retro-fit camshaft kit fits a non-roller block. However, we do offer a COMP Cams part number K08-432-8 which is the same grind on a factory roller camshaft.

Summit RacingSummit Racing Answer - February 16, 2018

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Most Helpful Reviews Review This Product

1 Customer Reviews for COMP Cams K12-432-8 - COMP Cams Xtreme Energy Retrofit Cam and Lifter Kits

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Everythingwork and was correct

Summit RacingSummit Racing Verified Purchase

Everything was in the box. It was shipped and arrived fast.

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Reviewer: from LA

Date: March 23, 2019

Ease of Installation

Some parts are not legal for use in California or other states with similar laws / regulations

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