CAMS HYDRAULIC ROLLER CAM & LIFTER KIT Ford CLEVELAND 227/241@.50 COMPCLKIT

Camshaft (CO32-600-8)COMP Cams is bringing the musclecar sound back and it's nastier than ever! Let's face it, few things serve to grab our attention at a car show or cruise night more than a car with a thumping high performance idle. In fact, one of the most frequent questions fielded when customers call our tech line is, "what camshaft will give my car that mean-sounding idle?" In an ongoing quest to provide you with the performance and sound you demand, COMP Cams' engineering team proudly introduces the Thumpr series of camshafts. The Thumpr camshafts are a new series of retrofit hydraulic roller camshafts designed for use in engines that were originally equipped with flat tappet camshafts. 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 cams. They give you a seriously aggressive exhaust note without negatively impacting the power output or streetability of the engine. Thumpr camshafts are available in three different grind profiles; each one will produce a rough, racy exhaust note and impressive amounts of horsepower and torque within a different rpm range. These Thumpr series camshafts feature a cutting-edge hydraulic roller design that delivers a substantial power increase over identical hydraulic flat tappet grinds without sacrificing reliability or ease of maintenance.

Cam Style	Hydraulic roller tappet
Basic Operating RPM Range	1,900-5,600
Intake Duration at 050 inch Lift	227
Exhaust Duration at 050 inch Lift	241
Duration at 050 inch Lift	227 int./241 exh.
Advertised Intake Duration	283
Advertised Exhaust Duration	303
Advertised Duration	283 int./303 exh.
Intake Valve Lift with Factory Rocker Arm Ratio	0.557 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio	0.539 in.
Valve Lift with Factory Rocker Arm Ratio	0.557 int./0.539 exh.
Lobe Separation (degrees)	107
Computer-Controlled Compatible	No
Grind Number	283THR7
Valve Springs Required	Yes
Quantity	Sold individually.

Lifters (CO851-16)These High Energy hydraulic roller lifters are for use with the newly designed hydraulic roller cam series from COMP Cams, or as performance replacements for stock hydraulic roller lifters. You must be certain that the lifters are correct for the type of block used.

Lifter Style	Hydraulic roller
Lifter Link Bars Included	No
Link Bar	OEM
Lifter Outside Diameter (in)	0.875 in.
Lifter Offset	None
Quantity	Sold as a set of 16.
Notes	For blocks originally equipped with hydraulic roller cam and in Comp cams specially designed Ford retro-fit kit CCA-31-1000.

Retrofit Kit (CO31-1000)These COMP Cams retrofit hydraulic roller lifter kits contain the remaining parts required to install hydraulic roller lifters in blocks not originally equipped with hydraulic roller camshafts. COMP Cams has put together these timesaving kits to help you smoothly install your new COMP Cams hydraulic roller cam.

Retaining Plate Material	Steel
Retaining Plate Finish	Natural
Lifter Link Bars Included	Yes
Quantity	Sold as a kit.