Small Block Chevy
DNA Roller Rocker Arms are made from aircraft-quality, heat-treated aluminum and are the toughest and most innovative rockers that Speedmaster offers. DNA Stud-Mount Rockers are designed to withstand up to 360-lb valve spring loads, and the extruded body has over 60,000 PSI of tensile strength. Studs and Guide Plates are required (sold separately).
Speedmaster is known for their quality rockers and these innovative DNA Roller Rocker Arms are no exception! If you're looking for superior strength, durability and optimized rocker arm geometry for an even load distribution, then look no further!
Speedmaster's DNA Rocker Arms are CNC-machined from aircraft-quality, heat-treated 2024 aluminum and matched to precision-ground trunnions for maximum strength. DNA shaft-mount rocker arms have an extruded body with a tensile strength exceeding 60,000 PSI, contain oversized needle roller bearings and are able to withstand valve spring loads up to 700 Ibs.
- Aircraft-quality, heat-treated aluminum
- Precision-ground trunnions for superior durability
- Optimized rocker arm geometry distributes load evenly
- Oversized needle roller bearings
- Up to 700 Ib valve spring loads
- 60,000 PSI tensile strength
- Black-anodized finish
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WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.