Applicable Engine
Compatible with LS1, LS2, LS6 Original Engine.
Compatible with Chevrolet Small Block V8 GEN III/IV LS Based Engines with Cathedral Port Heads Shape:
4.8L / 293 CI (For LR4); 5.3L / 325 CI (For L33,L59,LM4,LM7); 5.7L / 346 CI(For LS1,LS6); 6.0L / 364 CI(For LQ4,LQ9,LS2).