Product Review
Chevrolet LS1, LS4, LS6, 4. 8L-RL4, 5. 3L-LM7, 6. 0L-LQ4. Black oxide chrome moly with a 12 point Head. 3/8andquot, x 16 thread Prevent intake manifold leaks and are and nbsp, rated at 170, 000 psi and precision machined for optimum thread engagement. Wide under head flange and companion washers provide even load distribution.











