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COMP Cams 1608-1 Ultra Pro Magnum Rocker Arm Ratio SBC Twisted Wedge - 1.6

(GMC G2500 1979-95, Yukon 1992-95, K1500 1979-95, C1500 1979-95, K2500 1979-95, Jimmy 1970-91, C3500 1979-95, K2500 Suburban 1979-95 + 158 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

1608-1
4 reviews
Sale Price

$33.95

Estimated ship date Saturday, November 28

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Product Details

The COMP Cams 1608-1 Ultra Pro Magnum rocker arm is a high-performance roller rocker designed specifically for small block Chevy engines equipped with Twisted Wedge cylinder heads. Featuring a 1.6:1 rocker ratio, this rocker arm increases valve lift compared to stock 1.5 ratio rockers, improving airflow and engine performance without changing camshafts.

Key Features:

  • 1.6:1 rocker ratio for increased valve lift and performance
  • Precision needle bearing design for reduced friction and increased durability
  • CNC-machined aluminum body for strength and light weight
  • Self-aligning design accommodates valve train geometry variations
  • Fits small block Chevy engines with Twisted Wedge heads
  • Compatible with 7/16" rocker arm studs
  • Oil through pushrod compatible design

COMP Cams Ultra Pro Magnum rocker arms are engineered for high-performance street and racing applications where reliability and precision are critical. The roller tip design reduces side loading on valve stems while the needle bearing pivot ensures smooth, friction-free operation at high RPM.

Products specifications

Fits

GMC G2500 1979-95, Yukon 1992-95, K1500 1979-95, C1500 1979-95, K2500 1979-95, Jimmy 1970-91, C3500 1979-95, K2500 Suburban 1979-95, K3500 1979-95, C15/C1500 Pickup 1967-74, 1979-83, C2500 1979-95, K1500 Suburban 1979-95 + 154 more models

Maximum Valve Spring Open Pressure

850

AMAZON ASIN

B0046ZJAJM

Prop 65

WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for On-Road Vehicles?

No

C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?

Yes, but must be a race/competition only vehicle.

C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

Rocker Arm Material

8650 Chromemoly Steel

Rocker Arm Ratio

1.52

Rocker Arm Series

Ultra Pro Magnum

Engine Family

Chevrolet 262-400 c.i. 8 Cylinder (1958-1998) w/ Twisted Wedge Head, Intake Valve

Rocker Stud Diameter

7/16

Title

Ultra Pro Magnum Rocker Arm w/ 1.6 Ratio for SBC w/ Twisted Wedge Head

super easy, no fuss shopping. log in, pay out....DONE. Awesome.

Order an item a day ago and the next day its shipped! Had a question and customer service was there when you needed it!

I will definitely do more shopping with Autoplicity....great prices and quick shipments.

Excellent price on name brand items, best prices for Bosch oxygen sensors.

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