Designed for strength, built to race. No other rocker system compares with Yella Terra Platinum race series. Manufactured and assembled in Australia using the highest quality materials and componentry sourced locally and from the USA. Our wide range of true ratios allows you to achieve high lift without relying solely on your camshaft… a trend many engine builders and racers alike are adopting to relieve the inertia on lifters and pushrods generated by aggressive and often violent ramp rates required to make big lift. Proven bolt-on shaft design featuring heavy duty 7/16” and 10mm hardware for stability and durability well beyond the chequered flag. Specifications: PART NO: YT 6321 MAKE: FORD MODEL: VARIOUS SERIES: N/A ENGINE: 302C|351C|351M|400C|429|460 YEAR: 1969-- PART TYPE: ROLLER ROCKERS MOUNTING STYLE: Single Shaft ROCKER ARM RATIO: 1.73 STUD SIZE: 7/16 ADJUSTABLE: ADJUSTABLE HYDRAULIC - ROCKER ARM STYLE: FULL ROLLER SHIMS INCLUDED: No ROCKER MATERIAL: ALUMINIUM SELF-ALIGNING: NO ROCKER ARM BODY STYLE: WIDE BODY ROCKER ARM NUT STYLE: Capscrew MAX SPRING DIAMETER: 1.550 INLET OFFSET - QTY: SET OF 16 BRAND: Platinum NOTE: To machine for Platinum rockers, remove 0.300 from Rocker Pads, drill and tap for 7/16 UNC. Drill to fit roll pin which prevents sideways movement.
Designed for strength, built to race. No other rocker system compares with Yella Terra Platinum race series. Manufactured and assembled in Australia using the highest quality materials and componentry sourced locally and from the USA. Our wide range of true ratios allows you to achieve high lift without relying solely on your camshaft… a trend many engine builders and racers alike are adopting to relieve the inertia on lifters and pushrods generated by aggressive and often violent ramp rates required to make big lift. Proven bolt-on shaft design featuring heavy duty 7/16” and 10mm hardware for stability and durability well beyond the chequered flag. Specifications: PART NO: YT 6321 MAKE: FORD MODEL: VARIOUS SERIES: N/A ENGINE: 302C|351C|351M|400C|429|460 YEAR: 1969-- PART TYPE: ROLLER ROCKERS MOUNTING STYLE: Single Shaft ROCKER ARM RATIO: 1.73 STUD SIZE: 7/16 ADJUSTABLE: ADJUSTABLE HYDRAULIC - ROCKER ARM STYLE: FULL ROLLER SHIMS INCLUDED: No ROCKER MATERIAL: ALUMINIUM SELF-ALIGNING: NO ROCKER ARM BODY STYLE: WIDE BODY ROCKER ARM NUT STYLE: Capscrew MAX SPRING DIAMETER: 1.550 INLET OFFSET - QTY: SET OF 16 BRAND: Platinum NOTE: To machine for Platinum rockers, remove 0.300 from Rocker Pads, drill and tap for 7/16 UNC. Drill to fit roll pin which prevents sideways movement.