Engine Rocker Arm
CompCams : 1820-16
Varenummer: COM1820-16
Machined from 8650 steel with a billet pushrod seat insert, these Ultra Pro Magnum XD rockers can handle up to 1,000 lbs of spring pressure. These 1820 rockers feature a 1.7 ratio for use with 7/16" stud Chevrolet 396-454 Big Block.
- Amazon ASIN: N/A
- C.A.R.B. E.O. Number: N/A
- 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.
- 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. Exemption Reason: N/A
- Engine Family: Chevrolet 396-454 c.i. 8 Cylinder (1967-1996)
- Maximum Valve Spring Open Pressure: 1000
- Rocker Arm Material: 8650 Chromemoly Steel
- Rocker Arm Ratio: 1.7
- Rocker Arm Series: Ultra Pro Magnum XD
- Rocker Stud Diameter: 7/16 IN
- Title: Ultra Pro Magnum XD Rockers w/ 1.7 Ratio for Chevrolet Big Block w/ 7/16" Stud
- Engine Family: Chevrolet 396-454 c.i. 8 Cylinder (1967-1996)