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COMP Cams Camshaft Kit P8 XE256H-10

SKU: CCAK51-221-4

Camshaft Kits

CCA Camshaft Kits

COMP Cams Camshaft Kit P8 XE256H-10

SKU: CCAK51-221-4

Camshaft Kits

CCA Camshaft Kits

A$1,329.63
Limited Availability from MFR Limited stock available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical orders of this part. This item is not held in our own warehouse, and availability and release timing may vary depending on manufacturer stock movements and processing at the time of ordering.
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Description

K-KIT - Complete Kit Includes: Camshaft, Lifters, Valve Springs, Retainers, Valve Locks, Valve Stem Seals, Timing Chain Set, Assembly Lube (in flat tappet applications), Decals and Instructions.

Product Overview

COMP Cams offers complete component-matched valve train kits that deliver unbeatable performance, durability and ease of installation. All cam kits are fully tested and manufactured to the strictest standards. Each kit’s components were specifically chosen as the best performance match for that particular camshaft so that you can reap the benefits of a perfectly matched “Power Engineered System.” *K-Kit - Complete Kit Includes* * Camshaft * Lifters * Valve Springs * Retainers * Valve Locks * Valve Stem Seals * Assembly Lube * Decals * Instructions

Product Details

Advertised Exhaust Duration:268
Advertised Intake Duration:256
Amazon ASIN:B001R9H9VQ
Assembly Lubricant Included:Yes
Basic Operating RPM Range:1,000-5,200
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 Flat Tappet
Camshaft Material:Cast Iron
Camshaft Series:Xtreme Energy
Description:Xtreme Energy 212/218 Hydraulic Flat Cam K-Kit for Pontiac 265-455
Engine Family:Pontiac 265-455 C.I. 8 Cylinder (1955-1981)
Exhaust Duration @ .050 in.:218
Exhaust Duration at .050 inch Lift:218
Exhaust Duration:268
Exhaust Valve Lift(in):0.455
Exhaust Valve Lift:0.455
Gaskets Included:No
Intake Duration @ .050 in.:212
Intake Duration at .050 Inch Lift:212
Intake Duration:256
Intake Valve Lift(in):0.447
Intake Valve Lift:0.447
Kit Type:K-Kit - Complete Kit
Lifter Type:Hydraulic Flat Tappet
Lifters Included:Yes
Lobe Separation:110
Part Number:ccaK51-221-4
RPM Range:1000-7000
Title:Xtreme Energy 212/218 Hydraulic Flat Cam K-Kit for Pontiac 265-455
Usage:Street/Performance
Valve Springs Included:Yes

Application Summary

Pontiac 265-455 V8

Part Type

Engine Camshaft Kit

Data: v4.2 - Upd: 2026-09-27 16:44:57

Specifications

Product Attributes - Brand
COMP Cams
Product Attributes - Manufacturer's Part Number
K51-221-4
Product Attributes - Part Type
Camshaft Kits
Product Attributes - Product Line
COMP Cams Xtreme Energy Cam and Lifter Kits
Product Attributes - UPC
036584047216
Product Attributes - Cam Style
Hydraulic flat tappet
Product Attributes - Basic Operating RPM Range
1,000-5,200
Product Attributes - Camshaft Use
Street/Strip
Product Attributes - Intake Duration at 050 inch Lift
212
Product Attributes - Exhaust Duration at 050 inch Lift
218
Product Attributes - Duration at 050 inch Lift
212 int./218 exh.
Product Attributes - Advertised Intake Duration
256
Product Attributes - Advertised Exhaust Duration
268
Product Attributes - Advertised Duration
256 int./268 exh.
Product Attributes - Intake Valve Lift with Factory Rocker Arm Ratio
0.447 in.
Product Attributes - Exhaust Valve Lift with Factory Rocker Arm Ratio
0.455 in.
Product Attributes - Valve Lift with Factory Rocker Arm Ratio
0.447 int./0.455 exh.
Product Attributes - Lobe Separation (degrees)
110
Product Attributes - Grind Number
XE256H
Product Attributes - Computer-Controlled Compatible
No
Product Attributes - Lifters Included
Yes
Product Attributes - Lifter Style
Hydraulic flat tappet
Product Attributes - Valve Springs Included
Yes
Product Attributes - Outside Diameter of Outer Spring (in.)
1.384 in.
Product Attributes - Retainers Included
Yes
Product Attributes - Locks Included
Yes
Product Attributes - Valve Stem Seals Included
Yes
Product Attributes - Timing Chain and Gears Included
Yes
Product Attributes - Timing Chain Style
Double non-roller
Product Attributes - Assembly Lubricant Included
Yes
Product Attributes - Pushrods Included
No
Product Attributes - Rocker Arms Included
No
Product Attributes - Gaskets Included
No
Product Attributes - Valve Springs Required
No
Product Attributes - Quantity
Sold as a kit.

Reference Information

Brand Name/s Comp Cams
StreetFX SKU ccaK51-221-4
SFX Item ID 4124096
Supplier Item Code 4124096
Manufacturer SKU K51-221-4
Manufacturer UPC 36584047216
Alternative References sd455;, XE256H-10

Compatibility

Pontiac 265-455 V8

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