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1966-91 AMC 290-401
- Gold Race Rocker Arms
- 1.7 Ratio, 7/16" Stud
- 16/pkg
- Increased ratio with enlarged stud diameter
- Also fits 1967-91 Oldsmobile 260-455
- For Ford applications, 1966-2000 cylinder heads must be machined to install 7/16" rocker arm studs, pushrod guideplates, and heat-treated pushrods
- For AMC applications, 1966-91 cylinder heads must be machined to install 7/16" rocker arm studs, aftermarket pushrod guideplates, and heat-treated pushrods
- Heat-treated CNC-machined billet aluminum
- Alloy holds strength at elevated temperatures
- Maximum Open Spring Pressure: 700 lbs. Standard
- Steel roller tips & needle-bearing fulcrums
- Adjustable lock nuts included
- Anodized gold
Crane Cams billet extruded aluminum rocker arms have been racings most popular aluminum rockers since 1964. Their roller tip is more efficient than standard scrub-type rockers, they have a lower mass (less weight on the valve), and come in ratios that will increase the net valve lift and duration of a camshaft.
The Gold Race rocker arms are manufactured from heat-treated billet aluminum extrusions, and CNC machined to exacting tolerances. They feature Crane's exclusive Quick-Lift technology and employ heavy-duty precision-ground steel needle bearings, a heat-treated steel roller tips. They can handle up to 700 lbs of open spring pressure, and come complete with adjustable locking nuts.
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