Your Small Town Parts Store With More!
×
Sold out
Big-Mutha-Thumpr-243257-Hydraulic-Flat-Cam-For-Chrysler-273-360
Big-Mutha-Thumpr-243257-Hydraulic-Flat-Cam-For-Chrysler-273-360
Click to zoom in
  • Guaranteed Fitment

    Always the correct part

  • In-House Experts

    We know our products

  • Added Value

    Performance matched parts

  • Nationwide Delivery

    Economy shipping

COMP Cams 20-602-4 Big Mutha' Thumpr 243/257 Hydraulic Flat Cam for Chrysler 273-360

2 sold in last 8 days
COMP Cams
ds_BDQQ_20-602-4
Out of stock
Engine Camshaft
$340.13

customers are viewing this product
COMP Cams 20-602-4 Big Mutha' Thumpr 243/257 Hydraulic Flat Cam for Chrysler 273-360

Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series' early intake valve opening and long exhaust duration create optimum overlap for that race car idle. The Thumpr grinds all require an aftermarket torque converter and lower gear ratio to ensure the drivetrain always puts the engine in its powerband. Additionally, Thumpr camshafts typically deliver reduced vacuum at idle, making a vacuum canister, pump or hydroboost a requirement for vehicles running power brakes.

Specifications:

Description_ASM Fits Chrysler 273, 318, 340 and 360 LA
Description_DEF Engine Camshaft
Description_DES Big Mutha' Thumpr 243/257 Hydraulic Flat Cam for Chrysler 273-360
Description_INV BM-Thmpr 243/257 H-Flt Cam Chrys 273-360
Description_EXT Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
Description_KEY 273, 360, 318, AMC, Dodge, Mopar, Plymouth, Dart, Road Runner, Charger, Challenger, 383, 400, 440, 426, HEMI, 426 Wedge, 426 HEMI, RB, B, HEMI, 392, Chrysler, LA
Description_MKT Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series' early intake valve opening and long exhaust duration create optimum overlap for that race car idle. The Thumpr grinds all require an aftermarket torque converter and lower gear ratio to ensure the drivetrain always puts the engine in its powerband. Additionally, Thumpr camshafts typically deliver reduced vacuum at idle, making a vacuum canister, pump or hydroboost a requirement for vehicles running power brakes.
Description_SHO BMT 243/257 HFTChrLA
Description_SHP None
Advertised Intake Duration 295
Amazon ASIN B002EE0FK0
Engine Family Chrysler 273-360 c.i. 8 Cylinder (1964-2002)
Cam and Lifter Kit Upgrade CL20-602-4
Camshaft Material Cast Iron
Advertised Exhaust Duration 313
Assembly Lubricant Included Yes
Valve Springs Required Yes
Title Big Mutha' Thumpr 243/257 Hydraulic Flat Cam for Chrysler 273-360
Intake Valve Lift 0.507
Basic Operating RPM Range 2,500-6,400
Grind Number 295TH7
Exhaust Duration at .050 inch Lift 257
Cam Type Hydraulic Flat Tappet
Exhaust Valve Lift 0.494
K-Kit Upgrade K20-602-4
Intake Duration at .050 Inch Lift 243
C.A.R.B. Exempt for On-Road Vehicles? No
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. Exemption Reason N/A
Camshaft Series Thumpr
Usage Street/Strip
California Proposition 65 WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Lifters Included No
Camshaft Gear Attachment 1-Bolt
C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967? Yes, but must meet tailpipe emission standards for year of vehicle.
Lifter Type Hydraulic Flat Tappet
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.
Lobe Separation 107
C.A.R.B. Exempt for Racing and Off-Road Only Vehicles? Yes, but must be a race/competition only vehicle.
Length 3.0000
Width 3.0000
Height 25.0000
Weight 10.0000
Read More
Read Less
We use cookies to improve your experience on our website. Read about how we use cookies in our Privacy Policy. By browsing this website, you agree to our use of cookies. privacy policy
accept

Your cart

×