Late model V8 and V6 engines that run factory light weight valve train components, are often subject to valve float in the upper RPM range, limiting the engines performance and full potential. Yella Terra's engineering team set out to find a solution to the problem, and the result was the Ultralite. Yella Terra's exclusive Ultralite rocker arm, shaft and pedestal system offers 50% less nose weight than the factory rocker system, the result being greater RPM potential, with the added advantage of improved strength and durability. Available in standard rocker ratio or high ratio options, to suit a number of late model engine applications. Mounting Types: Easy Fit Maximum Open Spring Pressure: 400lbs Lifter Compatibility: Hydraulic Easy Fit kits are designed specifically for use with factory hydraulic lifters. Specifications: MAKE: BUICK & HOLDEN MODEL: VARIOUS SERIES: N/A ENGINE: 3.8 V6 YEAR: VARIOUS PART TYPE: ROLLER ROCKERS MOUNTING STYLE: Single Shaft ROCKER ARM RATIO: 1.6:1 STUD SIZE: 5/16 ADJUSTABLE - HYDRAULIC: HYDRAULIC ROCKER ARM STYLE: FULL ROLLER SHIMS INCLUDED: No ROCKER MATERIAL: ALUMINIUM SELF-ALIGNING: NO ROCKER ARM BODY STYLE: STANDARD ROCKER ARM NUT STYLE: Capscrew MAX SPRING DIAMETER: 1.437 INLET OFFSET - QTY: SET OF 12 BRAND: Ultralite NOTE: Easy Fit, no machining required. Kit comes with pushrods.
Late model V8 and V6 engines that run factory light weight valve train components, are often subject to valve float in the upper RPM range, limiting the engines performance and full potential. Yella Terra's engineering team set out to find a solution to the problem, and the result was the Ultralite. Yella Terra's exclusive Ultralite rocker arm, shaft and pedestal system offers 50% less nose weight than the factory rocker system, the result being greater RPM potential, with the added advantage of improved strength and durability. Available in standard rocker ratio or high ratio options, to suit a number of late model engine applications. Mounting Types: Easy Fit Maximum Open Spring Pressure: 400lbs Lifter Compatibility: Hydraulic Easy Fit kits are designed specifically for use with factory hydraulic lifters. Specifications: MAKE: BUICK & HOLDEN MODEL: VARIOUS SERIES: N/A ENGINE: 3.8 V6 YEAR: VARIOUS PART TYPE: ROLLER ROCKERS MOUNTING STYLE: Single Shaft ROCKER ARM RATIO: 1.6:1 STUD SIZE: 5/16 ADJUSTABLE - HYDRAULIC: HYDRAULIC ROCKER ARM STYLE: FULL ROLLER SHIMS INCLUDED: No ROCKER MATERIAL: ALUMINIUM SELF-ALIGNING: NO ROCKER ARM BODY STYLE: STANDARD ROCKER ARM NUT STYLE: Capscrew MAX SPRING DIAMETER: 1.437 INLET OFFSET - QTY: SET OF 12 BRAND: Ultralite NOTE: Easy Fit, no machining required. Kit comes with pushrods.