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User-friendly Comp Cams K34-602-9 Big Mutha' Thumpr 243/257 Hydraulic Roller Cam K-kit For Ford 429,460 Get 50% Off Today [ogYn9RPd]

$63.99 $204.99 -69%

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.ResourcesInstallation InstructionsResourcesInstallation

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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.
Resources
Installation Instructions
Resources
Installation Instructions

Specifications:

Advertised Exhaust Duration 319
Advertised Intake Duration 299
Amazon ASIN B005H89QY6
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
Camshaft Material Billet Steel
Camshaft Series Thumpr
Description_ASM Fits Ford Big Block/385 Series 429 and 460
Description_DEF Engine Camshaft Kit
Description_DES 10 Superlock Steel Retainer Set of 16 for 1.500"-1.550" OD Valve Spring
Description_DES Big Mutha' Thumpr 243/257 Hydraulic Roller Cam for Ford 429,460
Description_DES Big Mutha' Thumpr 243/257 Hydraulic Roller Cam K-Kit for Ford 429,460
Description_DES Magnum Double Row Timing Set for '68-'71 Ford 429-460
Description_DES Performance Street 1.509" OD Spring; 1.900" Installed Height; 16 Springs
Description_DES Retro-Fit Hydraulic Roller Lifter Set for Ford FE and 429-460
Description_DES Set of 16 - 10 Degree, 11/32", Single Groove Locks w/ Lash Cap Recess
Description_DES Set of 16 PTFE Valve Seals for .530" Guide Size, 11/32" Valve Stem
Description_EXT Street/ strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
Description_INV BMThmpr 243/257 H-Rlr K-Kit Ford 429,460
Description_KEY 385
Description_KEY 429
Description_KEY 429 Cobra Jet
Description_KEY 460
Description_KEY BBF
Description_KEY Big Block Ford
Description_KEY Cobra Jet
Description_KEY E150
Description_KEY E250
Description_KEY F100
Description_KEY F150
Description_KEY F250
Description_KEY Ford
Description_KEY Interceptor
Description_KEY Lima
Description_KEY Super Duty
Description_MKT 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.
Description_SHO Engine Camshaft Kit
Description_SHP None
Engine Family Ford 429, 460 c.i. 8 Cylinder (1968-1995)
Exhaust Duration at .050 inch Lift 257
Exhaust Valve Lift 0.563
Gaskets Included No
height 5.0
Intake Duration at .050 Inch Lift 243
Intake Valve Lift 0.579
Kit Type K-Kit - Complete Kit
length 26.0
Lifter Type Hydraulic Roller
Lifters Included Yes
Lobe Separation 107
LTL N
Title Big Mutha' Thumpr 243/257 Hydraulic Roller Cam K-Kit for Ford 429,460
Usage Street/Strip
Valve Springs Included Yes
weight 28.0
width 10.5

What Our Customers Say

January 2, 2026

Absolutely no complaints!

A great item that is built to perform very, very great.

- Haf U..

January 2, 2026

Absolutely no complaints!

A great product for a very, very, very, very great price.

- Caswallon D..

January 2, 2026

Absolutely no complaints!

A great item for a very, very, very, very, very good price.

- Teyrnon K..

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