TSP Cathedral 3/4 Race Cam for 5.7L/6.0L LS

The Texas Speed and Performance TSP Cathedral 3/4 Race Cam is a performance camshaft engineered for LS 5.7L and 6.0L engines equipped with cathedral-port cylinder heads. It revives the spirit of classic 3/4 race cams with modern technology, delivering significant power gains and an aggressive auditory profile. With specifications including 232°/240° duration at .050" lift, .629"/.615" lift, and a 110° LSA, this cam is designed for an aggressive mid-range and top-end powerband. It is dyno-proven to yield approximately +75 HP over stock, tested on a 370 CID LQ4 with stock 317 cathedral heads and a TBSS/NNBS intake manifold. To achieve optimal performance and reliability, several components are required. These include .650"+ rated dual valve springs, 5/16" hardened pushrods, and for automatic transmissions, a 3200+ stall torque converter. Proper tuning is essential for streetability, which this cam offers despite its aggressive, choppy idle characteristic, often described as a classic race cam feel. This camshaft is ideal for weekend warriors, street/strip builds, and enthusiasts seeking retro-inspired power.