COMP Cams 91-600-5 Thumpr Hydraulic Flat Camshaft for Buick 364/401/425 Nailhead Engines

Classic Thumpr 227/241 Hydraulic Flat Cam for Buick 364, 401, 425 Nailhead. Street Applications. Performance street with strong torque, stock converter ok. Choppy/thumping idle.

The COMP Cams 91-600-5 Thumpr hydraulic flat camshaft is designed specifically for Buick engines such as the 364, 401, and 425 Nailhead models. This camshaft offers a performance street application with strong torque characteristics, making it suitable for enthusiasts seeking enhanced engine response without the need for a stock converter. Its choppy and thumping idle sound provides a distinctive, aggressive tone that complements the overall driving experience. Crafted for vintage Buick vehicles including Skylark, Electra, Riviera, and Wildcat from the mid-1960s, this camshaft ensures a perfect fit and optimal performance.
The Thumpr camshaft features a hydraulic flat design that reduces maintenance needs while providing excellent street performance. The camshaft’s specifications are tailored to improve torque delivery across the RPM range, enhancing acceleration and overall engine responsiveness. It is essential to note that this part is not carburetor approved and requires carb acknowledgment during installation. With a moderate profile, this camshaft can be used with a stock converter, making it an ideal upgrade for classic Buick enthusiasts who want improved performance without extensive modifications.
Manufactured by COMP Cams, this part adheres to high-quality standards, ensuring durability and reliable operation. Its compact dimensions make installation straightforward for qualified mechanics and DIY enthusiasts familiar with vintage Buick engines. Whether restoring a classic car or building a performance-oriented street machine, the COMP Cams 91-600-5 camshaft provides a substantial upgrade to engine performance and character. Invest in this durable, performance-oriented camshaft to unlock new levels of power and sound from your Buick Nailhead engine.

Features:

• Designed for Buick 364, 401, and 425 Nailhead engines, ensuring proper fit and performance

• Hydraulic flat camshaft for reduced maintenance and reliable operation

• Provides strong torque and improved acceleration for street applications

• Choppy and thumping idle sound enhances the vehicle's character

• Compatible with stock converters, ideal for classic Buick restorations

Fits
Buick Century Base 1957
Buick Century Base 1958
Buick Electra 225 1959
Buick Electra 225 1960
Buick Electra 225 1961
Buick Electra 225 1962
Buick Electra Base 1959
Buick Electra Base 1960
Buick Electra Base 1961
Buick Electra Base 1962
Buick Electra Base 1963
Buick Electra Base 1964
Buick Electra Base 1965
Buick Electra Base 1966
Buick Electra Custom 1966
Buick Estate Wagon Base 1959
Buick Estate Wagon Base 1960
Buick Estate Wagon Base 1961
Buick Estate Wagon Base 1962
Buick Estate Wagon Base 1963
Buick Estate Wagon Base 1964
Buick Gran Sport Base 1965
Buick Gran Sport Base 1966
Buick Invicta Base 1959
Buick Invicta Base 1960
Buick Invicta Base 1961
Buick Invicta Base 1962
Buick Invicta Base 1963
Buick LeSabre Base 1959
Buick LeSabre Base 1960
Buick LeSabre Base 1961
Buick LeSabre Base 1962
Buick LeSabre Base 1963
Buick LeSabre Base 1964
Buick Limited Base 1958
Buick Riviera Base 1963
Buick Riviera Base 1964
Buick Riviera Base 1965
Buick Riviera Base 1966
Buick Riviera Gran Sport 1965
Buick Riviera Gran Sport 1966
Buick Roadmaster 75 1957
Buick Roadmaster Base 1957
Buick Roadmaster Base 1958
Buick Skylark Base 1965
Buick Skylark Base 1966
Buick Special Base 1957
Buick Special Base 1958
Buick Super Base 1957
Buick Super Base 1958
Buick Wildcat Base 1962
Buick Wildcat Base 1963
Buick Wildcat Base 1964
Buick Wildcat Base 1965
Buick Wildcat Base 1966
Buick Wildcat Custom 1965
Buick Wildcat Custom 1966
Buick Wildcat Deluxe 1965
Buick Wildcat Gran Sport 1966