Speedmaster's DNA® Aluminum Roller Rocker Arms (PN 1-261-007) are engineered specifically for Ford small-block 289, 302, and 351 Windsor engines. Featuring a 1.6 rocker ratio and 7/16" stud size, these roller rockers help optimize valve lift and improve valvetrain efficiency over stock stamped-steel units, making them a solid upgrade for street performance and mild builds alike.
Constructed from lightweight aluminum with a roller tip and roller fulcrum design, these rocker arms reduce friction at the valvetrain contact points to support more consistent, reliable valve actuation. Sold as a set, they are a direct-fit solution for the specified Ford small-block applications and are backed by Speedmaster's DNA® performance pedigree.
MPN1-261-007
UPC840136501695
