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COMP Cams Camshaft CRS 299T HR-107 BMT

SKU: CCA20-603-9

Camshafts

CCA Camshafts...

COMP Cams Camshaft CRS 299T HR-107 BMT

SKU: CCA20-603-9

Camshafts

CCA Camshafts...

A$1,216.04
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

Big Mutha' Thumpr 243/257 Hydraulic Roller Cam

Product Overview

*Thumpr Camshafts* * Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods * Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note * Best with aftermarket converters and more rear gear

Product Details

Advertised Exhaust Duration:319
Advertised Intake Duration:299
Amazon ASIN:B001GBMGNQ
Assembly Lubricant Included:No
Basic Operating RPM Range:2,500-6,200
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 Roller
Cam and Lifter Kit Upgrade:CL20-603-9
Camshaft Gear Attachment:1-Bolt
Camshaft Material:Billet Steel
Camshaft Series:Thumpr
Description:Big Mutha' Thumpr 243/257 Hydraulic Roller Cam for Chrysler 273-360
Engine Family:Chrysler 273-360 c.i. 8 Cylinder (1964-2002)
Exhaust Duration @ .050 in.:257
Exhaust Duration at .050 inch Lift:257
Exhaust Duration:319
Exhaust Valve Lift(in):0.519
Exhaust Valve Lift:0.519
Grind Number:299THR7
Intake Duration @ .050 in.:243
Intake Duration at .050 Inch Lift:243
Intake Duration:299
Intake Valve Lift(in):0.533
Intake Valve Lift:0.533
K-Kit Upgrade:K20-603-9
Lifter Type:Hydraulic Roller
Lifters Included:No
Lobe Separation:107
Part Number:cca20-603-9
RPM Range:2000-9000
Title:Big Mutha' Thumpr 243/257 Hydraulic Roller Cam for Chrysler 273-360
Usage:Street/Strip
Valve Springs Required:Yes

Application Summary

Fits Chrysler 273, 318, 340 and 360 LA

Part Type

Engine Camshaft

Data: v4.2 - Upd: 2026-10-13 17:48:16

Specifications

Product Attributes - Brand
COMP Cams
Product Attributes - Manufacturer's Part Number
20-603-9
Product Attributes - Part Type
Camshafts
Product Attributes - Product Line
COMP Cams Thumpr Retrofit Hydraulic Roller Camshafts
Product Attributes - UPC
036584150978
Product Attributes - Cam Style
Hydraulic roller, Retro-fit
Product Attributes - Camshaft Use
Street/Strip
Product Attributes - Basic Operating RPM Range
2,500-6,200
Product Attributes - Intake Duration at 050 inch Lift
243
Product Attributes - Exhaust Duration at 050 inch Lift
257
Product Attributes - Duration at 050 inch Lift
243 int./257 exh.
Product Attributes - Advertised Intake Duration
299
Product Attributes - Advertised Exhaust Duration
319
Product Attributes - Advertised Duration
299 int./319 exh.
Product Attributes - Intake Valve Lift with Factory Rocker Arm Ratio
0.533 in.
Product Attributes - Exhaust Valve Lift with Factory Rocker Arm Ratio
0.519 in.
Product Attributes - Valve Lift with Factory Rocker Arm Ratio
0.533 int./0.519 exh.
Product Attributes - Lobe Separation (degrees)
107
Product Attributes - Remanufactured
No
Product Attributes - Computer-Controlled Compatible
No
Product Attributes - Grind Number
299THR7
Product Attributes - Valve Springs Required
Yes
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Comp Cams
StreetFX SKU cca20-603-9
SFX Item ID 4119352
Supplier Item Code 4119352
Manufacturer SKU 20-603-9
Manufacturer UPC 36584150978
Alternative References 299T, HR-107

Compatibility

Fits Chrysler 273, 318, 340 and 360 LA

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