Perfect for street performance, our 8620 chromemoly steel Magnum roller tip rockers can handle up to 350 lbs of pressure. These 1431 rail-type rockers feature a 1.6 ratio for 3/8" stud '68-'89 Ford 289-351 Windsor.
'68-'95For 3/8" Studs / 1.6:1 Ratio Magnum Roller Rocker Arms. Magnum Roller Rockers are the ultimate street Rocker because they were designed with the Serious performance enthusiast in mind. They will help your engine make more power and last longer.
'68-'95
- Ultimate street Roller Rocker arm designed for Serious performance enthusiasts
- Constructed from 8620 chromemoly Steel, a superior material that will not flex and ensures maximum lift
- Roller tip reduces friction while stiff design and superior ratio accuracy yield more effective valve lift
- For Applications with less than 350 lbs. of open spring pressure
- 289 c.i.d. / 302 c.i.d. Applications
- Rockers and High Energyâ„¢ Pushrods (For Flat Tappet Lifters)
- Rockers and Magnum (Heavy Duty) Pushrods (For Flat Tappet Lifters)
- Rockers and High Energyâ„¢ Pushrods (For Retro-Fit Hydraulic Roller Lifters)
- Rockers and High Energyâ„¢ Pushrods (For OE Hydraulic Roller Lifters)
- 351 c.i.d. Windsor Applications
- Rockers and High Energyâ„¢ Pushrods (For Flat Tappet Lifters)
- Rockers and Magnum (Heavy Duty) Pushrods (For Flat Tappet Lifters)
| Attributes | |
| Amazon ASIN | B00062YZSU |
| ASIN | B00062YZSU |
| C.A.R.B. E.O. Number | N/A |
| 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 |
| California Proposition 65 | WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| Country of Origin (Primary) | US |
| Emission Code | Legal US |
| Engine Family | Ford 289-351W (1968-1989) w/ Rail Type Rockers, Ford 289-351W (1968-1989) w/ Rail Type Rockers |
| Engine Make/Size | Ford 289-302 |
| Harmonized Tariff Code (Schedule B) | 8409914000 |
| Hazardous Material Code | N |
| Life Cycle Status Code | Available to Order |
| Maximum Valve Spring Open Pressure | 350, 350 |
| NAFTA Preference Criterion Code | B |
| Ratio | 1.6 |
| Rocker Arm Material | 8620 Chromemoly Steel, 8620 Chromemoly Steel |
| Rocker Arm Ratio | 1.6, 1.6 |
| Rocker Arm Series | Magnum, Magnum |
| Rocker Stud Diameter | 3/8, 3/8 |
| SDR Required Flag | Y |
| SDS Sheet Number | COMP4-107 |
| Stud Size | N/A |
| Warranty Time | 12 |
| GTIN | 00036584310624 |