Howards Cams Torque Monster Hydraulic Roller Camshafts 221145-12

5 out of 5 stars ( 3 )

Part Number: HRS-221145-12

$419.99

Camshaft, Hydraulic Roller Tappet, Advertised Duration 272/278, Lift .544/.533, Ford, 302 HO/351W, Each
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Howards Cams Torque Monster Hydraulic Roller Camshafts 221145-12

Howards Cams Torque Monster Hydraulic Roller Camshafts 221145-12

HRS-221145-12

5 out of 5 stars ( 3 )

Part Number: HRS-221145-12

Estimated Ship Date: Tomorrow

$419.99

Estimated Ship Date: Tomorrow Would you rather pick it up?

Overview

Brand:
Manufacturer's Part Number:
221145-12
Part Type:
Product Line:
Summit Racing Part Number:
HRS-221145-12
UPC:
840793110469
Cam Style:
Hydraulic roller, Retro-fit
Camshaft Use:
Street/Strip
Camshaft Manufacturers Description:
Good idle, good midrange power. Good vacuum, 9.5-10.5:1 compression ratio, 2,500+ stall.
Basic Operating RPM Range:
2,000-6,000
Intake Duration at 050 inch Lift:
219
Exhaust Duration at 050 inch Lift:
225
Duration at 050 inch Lift:
219 int./225 exh.
Advertised Intake Duration:
272
Advertised Exhaust Duration:
278
Advertised Duration:
272 int./278 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.544 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.533 in.
Valve Lift with Factory Rocker Arm Ratio:
0.544 int./0.533 exh.
Lobe Separation (degrees):
112
Camshaft Gear Attachment:
1-bolt
Remanufactured:
No
Computer-Controlled Compatible:
No
Valve Springs Required:
Yes
Quantity:
Sold individually.

Howards Cams Torque Monster Hydraulic Roller Camshafts

Howards Cams Torque Monster camshafts are high performance hydraulic roller models designed to deliver strong low-end torque and a broad, flat powerband—making them ideal for street-driven vehicles, including those with large tires for off-road applications. They balance aggressive power with excellent drivability, maintaining good vacuum for power brakes, a responsive feel at any speed, and a subtle idle. This ensures that the camshafts are a practical choice for enhancing performance without sacrificing daily usability.

Key camshaft characteristics:

* High low-end torque: Engineered to provide significant "grunt" and acceleration at lower engine speeds
* Broad powerband: The cam produces a flat torque curve and strong power across a wide RPM range, ensuring consistent performance for merging or high-speed passing
* Street-friendly design: Uses moderate duration and a thoughtful Lobe Separation Angle (LSA) to maintain good engine vacuum for accessories like power brakes, keeping street manners excellent
*Improved drivability: Offers immediate response and strong acceleration without compromising daily usability or causing a radical idle, making it a "sleeper" upgrade
* Hydraulic roller design: Utilizes advanced computer-generated lobe designs and a hydraulic roller system for smooth operation and reliable performance
* Applications:
-- Muscle Cars: Ideal for street-driven muscle cars that benefit from strong midrange torque
-- Trucks and Off-Road: Popular for trucks and 4x4s requiring the power to drag heavy loads or perform well in off-road conditions
-- Street-Performance Builds: A great option for "sleeper" builds where a stock appearance is maintained but performance is significantly enhanced

Applications

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