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 KIT CONTAINS: Camshaft and lifters.
 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.
These high-performance items are not eligible for any further discounts or promotional pricing.
High Performance, designed to improve performance.
SHIP NOTE: This item is SPECIAL ORDER and will be drop-shipped from the manufacturer.
All drop-shipped orders must be prepaid. Rates vary depending upon weight.
This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.