Elgin stainless full roller rocker arms, big-block Cevrolet, 1.72 ratio

These Elgin rocker arms feature extra large full needle bearing trunnions designed to increase horsepower, provide quicker response, increase durability and allow high RPM stability with no deflection. The large roller tip provides less friction and a smooth path over the valve tip which reduces wear on the valve to rocker contact area. The upgraded trunnion has a clip on the outside to keep all of the needle bearings in place and operating at peak performance.

Features:

Application: Chevrolet big-block.  
Rocker arm material: stainless steel.
Rocker arm style: roller tip.
Rocker arm ratio: 1.72.
Self-aligning: No.
Rocker arm mounting style: stud.
Stud size: 7/16".
Roller tip: yes.
Roller trunnion (body): yes.
Rocker arm nut included: polylock.
Rocker arm finish: natural.
Shims included: no.
Quantity: sold in set of 16.