MSD Firewall Feed-Thru (Black, Red) BR30020 Head is serial numbered and

Head is serial numbered and includes the IMCA logo

Auto Trans

Torque Ball Stud and High Nut Kit

Mounts between the oil pan and block

MSD Firewall Feed-Thru (Black, Red) BR30020 Head is serial numbered andTo prevent voltage leaks in passenger compartment mounted coil installations, MSD designed the Firewall Feed Thru. Molded from Rynite(R) and nylon, the Firewall Feed Thru provides 1 2" of insulation to ensure that the coil's spark reaches the distributor. To prevent voltage leaks in passenger compartment mounted coil installations, MSD designed the Firewall Feed Thru. Molded from rynite a hi dielectric strength material. Features: Absolutely the best