Chevy BBC 454 1.7 Ratio 7/16" DNA® Aluminum Roller Rocker Arms Set

Brand:	Speedmaster
Part Number:	1-261-005
Part Type:	Rocker Arm
Product Line:	Stud Mount
Rocker Arm Mounting Style:	Stud
Rocker Arm Ratio:	1.7
Rocker Arm Style:	Full roller
Stud Size:	7/16 in.
Shims Included:	No
Self-Aligning:	No
Rocker Arm Body Style:	Standard
Rocker Arm Nut Style:	Polylock
Rocker Arm Material:	Aluminum
Rocker Arm Finish:	Black anodized
Quantity:	Sold as a set of 16.
Notes:	Studs and Guide Plates required to run Roller Rockers.

Speedmasterª DNA_ roller rockers are the toughest and most innovative rockers we've ever made. Crafted from certified aircraft-quality, heat-treated aluminum, they're matched to massive, precision-ground trunnions for superior durability, and optimized rocker arm geometry evenly distributes the load for maximum strength. DNA_ rocker arms also utilize oversized needle roller bearings for better load distribution and longer service life. Finally, they're black anodized; you'll want to leave your valve covers off! Speedmasterª Aluminum Stud-Mount Rockers can withstand valve spring loads up to 360Ibs, the extruded body has a tensile strength of over 60,000 PSI.