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COMP Cams Camshaft FF XM 298H-12

SKU: CCA34-254-5

Camshafts

CCA Camshafts...

COMP Cams Camshaft FF XM 298H-12

SKU: CCA34-254-5

Camshafts

CCA Camshafts...

Sale ends in Calculating...

A$726.77 A$815.52
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Description

Exclusive Comp Cams flash sale discount at StreetFX!

Talk about timing! This is a limited offer while stocks last on various Comp Cams part numbers. There's never been a better time to buy your Comp Cams upgrades, so what are you waiting for?!

This item is currently on sale!

Same-day payment required to secure promotional price. Promotions may end early or be extended based on stock levels or other factors.

XMar 254/264 HFTBBF

Hydraulic: Good for jet boat with A or B impeller. Good in Bracket racing and high performance use.

Additional Information

Good for jet boat with A or B impeller. Good in bracket racing and high performance use.

Application Summary

Fits Ford Big Block/385 Series 429 and 460

Part Type

Engine Camshaft

Product Overview

*Xtreme Marine Camshafts*
• Extremely wide powerband helps get boat on plane while making maximum horsepower
• Work against exhaust systems with restrictive back pressure
• Power enhancement helps maintain top end speed for long distances
• Intended for applications where low idle speeds are required

Additional Application Notes
• Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Hyd. Flat Tappet; 2500-6800rpm; Adv. Dur. 298 Int./316 Exh.; Valve Lift .585 Int./.588 Exh.; Lobe Angle 112 deg.;
• w/ K Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Hyd. Flat Tappet; 2500-6800rpm; Adv. Dur. 298 Int./316 Exh.; Valve Lift .585 Int./.588 Exh.; Lobe Angle 112 deg.;
• w/ Z Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Hyd. Flat Tappet; 2500-6800rpm; Adv. Dur. 298 Int./316 Exh.; Valve Lift .585 Int./.588 Exh.; Lobe Angle 112 deg.;
• w/ Z Engine VIN;
• w/ N Engine VIN; w/ J Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Hyd. Flat Tappet; 2500-6800rpm; Adv. Dur. 298 Int./316 Exh.; Valve Lift .585 Int./.588 Exh.; Lobe Angle 112 deg.;
• w/ J Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Hyd. Flat Tappet; 2500-6800rpm; Adv. Dur. 298 Int./316 Exh.; Valve Lift .585 Int./.588 Exh.; Lobe Angle 112 deg.;
• w/ C Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Hyd. Flat Tappet; 2500-6800rpm; Adv. Dur. 298 Int./316 Exh.; Valve Lift .585 Int./.588 Exh.; Lobe Angle 112 deg.;

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.

Data: v4.2 - Upd: 2026-11-11 11:08:39

Features

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Details

Advertised Exhaust Duration:316
Advertised Intake Duration:298
Amazon ASIN:B001R9DQOK
Assembly Lubricant Included:Yes
Basic Operating RPM Range:2,500-6,800
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 Type:Hydraulic Flat Tappet
Cam and Lifter Kit Upgrade:CL34-254-5
Camshaft Gear Attachment:1-Bolt
Camshaft Material:Cast Iron
Camshaft Series:Xtreme Marine
Description:Xtreme Marine 254/264 Hydraulic Flat Cam for Ford 429,460
Engine Family:Ford 429, 460 c.i. 8 Cylinder (1968-1995)
Exhaust Duration @ .050 in.:264
Exhaust Duration at .050 inch Lift:264
Exhaust Duration:316
Exhaust Valve Lift(in):0.578
Exhaust Valve Lift:0.578
Grind Number:XM298H
Intake Duration @ .050 in.:254
Intake Duration at .050 Inch Lift:254
Intake Duration:298
Intake Valve Lift(in):0.575
Intake Valve Lift:0.575
K-Kit Upgrade:K34-254-5
Lifter Type:Hydraulic Flat Tappet
Lifters Included:No
Part Number:cca34-254-5
RPM Range:2000-9000
SK-Kit Upgrade:SK34-254-5
Title:Xtreme Marine 254/264 Hydraulic Flat Cam for Ford 429,460
Usage:Marine
Valve Springs Required:Yes

Product Downloads

# Document Type Download
1. Catalog

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Data: v2 - Desc: v4.2 - Upd: 2026-11-07 19:03:23

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Comp Cams, Comp Cams (edelbrock)
StreetFX SKU cca34-254-5
SFX Item ID 4119832
Accounting SKU cca-34-254-5
Manufacturer SKU 34-254-5
Manufacturer UPC 036584038658
Alternative References 34-254-5, CCA-34-254-5

Camshaft, Hydraulic Flat Tappet, Advertised Duration 298/316, Lift .585/.588, Ford, 429, 460, Each

COMP Cams Xtreme Marine camshafts take advantage of the newest developments in camshaft engineering. Their aggressive lobe design produces better throttle response and top-end horsepower than other cams with the same duration at .050 in., while delivering increased engine vacuum. These cams are available for everything from pleasure boats to race applications, so you can always enjoy Xtreme performance on the water. From hydraulic and mechanical, to flat and roller tappet, COMP Cams offers camshafts for your watercraft dating as far back as the 1950s.

Product Attributes
BrandCOMP Cams
Manufacturer's Part Number34-254-5
Part TypeCamshafts
Product LineCOMP Cams Xtreme Marine Camshafts
UPC036584038658
Cam StyleHydraulic flat tappet
Camshaft UseMarine
Basic Operating RPM Range2,200-6,500
Intake Duration at 050 inch Lift254
Exhaust Duration at 050 inch Lift264
Duration at 050 inch Lift254 int./264 exh.
Advertised Intake Duration298
Advertised Exhaust Duration316
Advertised Duration298 int./316 exh.
Intake Valve Lift with Factory Rocker Arm Ratio0.585 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio0.588 in.
Valve Lift with Factory Rocker Arm Ratio0.585 int./0.588 exh.
RemanufacturedNo
Computer-Controlled CompatibleNo
Grind NumberXM298H
Valve Springs RequiredYes
QuantitySold individually.

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