Ultra Pro Magnum Rocker Arm w/ 1.6 Ratio for Chevrolet V6 and SBC w/ 3/8" StudThis Ultra Pro Magnum rocker is made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1. 6 ratio

These springs are available with flat and pigtail ends and in 10" and 11" free lengths

The hybrid front coil-over system provides a 0–3" adjustable front drop

Replaces the stock 4V EGR manifold using the stock 4V adapter

It provides an in and out port for installing an oil cooler

ensuring a seamless installation process

Bridge your gauges and modern engine management with one smart box

Xtreme pressure plates are recommended for use with a street or race disc

AVS and AVS II series of Edelbrock carburetors

Xtreme Energy 224/230 Hydraulic Roller Cam for Chrysler 383-440

Carb center to carb center: 6-7/16"

Use carb Studs #8008 or #8024 if needed

This kit includes all necessary hardware needed to rebuild your famous South Side Machine lift bars