High Energy Nitrided Rocker Set w/ 1.6 Ratio for Chevrolet SBC w/ 3/8" Stud Miata Based on some of the

Based on some of the most common radiator core sizes sold today

Thumpr 227/241 Hydraulic Roller Cam K-Kit for Chevrolet Big Block 396-454

and the rods can be changed in seconds without carburetor removal or fuel draining

Manifold will not accept stock Motorcraft spread-bore carburetor

and an all-around improvement in performance BMR Suspension designed the UTCA059 to work well in street performance

High Energy Nitrided Rocker Set w/ 1.6 Ratio for Chevrolet SBC w/ 3/8" Stud Miata Based on some of theour High Energy rockers eliminate slop and feature a long slot for higher lift cams. These 1218 nitrided rockers feature a 1. 6 ratio for 3 8" stud Chevrolet 265 400 Small Block.