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COMP Cams 26-600-7 Thumpr Hydraulic Flat Tappet Camshaft Chrysler Hemi - for 392

(1957-1958 Chrysler 300; 1957-1958 Chrysler Town & Country; 1957-1958 Chrysler Newport; 1957-1958 Chrysler New Yorker; 1957-1958 Chrysler Imperial + 1 more model)

Part of: COMP Cams Thumpr Hydraulic Flat Tappet Camshaft Ford

Other options in this family: COMP Cams 35-600-4 COMP Cams 34-600-5 COMP Cams 20-600-4 COMP Cams 21-600-5 COMP Cams 92-600-5

Manufacturer

Picture for manufacturer COMP Cams

Part Number

26-600-7
8 reviews
Sale Price

$499.95

Estimated ship date Monday, November 23

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Product Details

The COMP Cams 26-600-7 Classic Thumpr camshaft delivers aggressive performance and that signature lopey idle sound for Chrysler 392 early Hemi engines. This hydraulic flat tappet camshaft features a 227/241 duration split designed to produce strong mid-range torque and excellent throttle response in street and muscle car applications.

Camshaft Specifications:

  • Advertised Duration: 279°/293° intake/exhaust
  • Duration @ .050": 227°/241° intake/exhaust
  • Valve Lift: .474"/.488" intake/exhaust (with 1.5:1 rocker ratio)
  • Lobe Separation Angle: 110°
  • Hydraulic flat tappet design for reliable street performance
  • Requires 2,000-6,000 RPM operating range
  • Recommended intake: Dual plane or single plane intake manifold
  • Minimum compression ratio: 9.5:1

Key Features:

  • Classic Thumpr profile delivers aggressive sound with excellent drivability
  • Optimized for street performance in vintage 392 Hemi applications
  • Engineered specifically for early Chrysler 392 cubic inch Hemi engines
  • Provides noticeable performance gains over stock camshafts
  • Compatible with hydraulic flat tappet lifters and factory valve springs (verify spring specs)

This camshaft is ideal for enthusiasts building a strong street engine with classic hot rod character. The Thumpr series is renowned for delivering head-turning sound while maintaining good vacuum for power brakes and streetability. Proper break-in procedure with COMP Cams break-in oil additive is required for flat tappet camshafts.

Products specifications

Fits

1957-1958 Chrysler 300; 1957-1958 Chrysler Town & Country; 1957-1958 Chrysler Newport; 1957-1958 Chrysler New Yorker; 1957-1958 Chrysler Imperial; 1957-1958 Chrysler Ford 300

Advertised Intake Duration

279

Basic Operating RPM Range

2,000-5,800

Grind Number

279TH7

Cam Type

Hydraulic Flat Tappet

Exhaust Valve Lift

0.472

Intake Valve Lift

0.486

Exhaust Duration at .050 inch Lift

241

Camshaft Material

Cast Iron

Engine Family

Chrysler 392 HEMI 8 Cylinder (1957-1958)

Camshaft Series

Classic Thumpr

AMAZON ASIN

B0046ZJ5CE

Usage

Street/Performance

Assembly Lubricant Included

Yes

Lifters Included

No

Valve Springs Required

Yes

Lifter Type

Hydraulic Flat Tappet

Prop 65

WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

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. 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.

Intake Duration at .050 Inch Lift

227

Advertised Exhaust Duration

296

LOBE SEPARATION

107

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