Comp Cams is bringing the muscle car sound back, and it is nastier than ever! The lobe profile and grind characteristics of these new Thumpr camshafts use a combination of an early exhaust valve opening, a long exhaust duration and a generous amount of intake and exhaust overlap to maximize the rough-idling characteristics of the camshafts. This gives you a seriously aggressive exhaust note without negatively impacting the power output or streetability of the engine. Thumpr camshafts are available in different grind profiles, each one producing a rough, racy exhaust note while still providing impressive gains in horsepower and torque.
EACH K-KIT CONTAINS: Camshaft, lifters, springs, retainers, locks, valve seals and timing chain set. DOES NOT INCLUDE THE PUSHRODS APPLICATION FOOTNOTES:  Stock springs cannot be used.  Requires thrust button & wear plate.  Must use bronze tip fuel pump pushrod when using high pressure or high volume pump.
|Make & Model||Year Range||Application Details|
|Buick Grand National||1978-1980||Hydraulic Flat Tappet|
|Buick Regal||1978-1980||Hydraulic Flat Tappet|
|Buick T-Type||1978-1980||Hydraulic Flat Tappet|
|Chevrolet Chevelle||1964-1977||Hydraulic Flat Tappet|
|Chevrolet El Camino||1964-1977||Hydraulic Flat Tappet|
|Chevrolet El Camino||1978-1988||Hydraulic Flat Tappet|
|Chevrolet Malibu||1978-1988||Hydraulic Flat Tappet|
|Chevrolet Monte Carlo||1970-1977||Hydraulic Flat Tappet|
|Chevrolet Monte Carlo||1978-1988||Hydraulic Flat Tappet|