Royal Purple HPS High Performance Street Synthetic Motor Oil - 20W50 - 1 Quart (Case of 6) 36005BK and a 1/2" pipe fitting

and a 1/2" pipe fitting at the bottom for plumbing a line to the radiator

1967-1972 GMC C15/C1500 Suburban

375 inches

The low-profile of the #2975 works well in applications with minimal hood clearance and where 1" or 2" spacers can be used for performance tuning

No PC required for basic functionality

Royal Purple HPS High Performance Street Synthetic Motor Oil - 20W50 - 1 Quart (Case of 6) 36005BK and a 1/2" pipe fittingRoyal Purple HPS Series motor oil is specifically formulated to maximize performance and meet the demands of high performance and modified engines. HPS is high performance street motor oil recommended for vehicles no longer under manufacturer warranty and for those seeking a higher level of performance and protection. Royal Purples premium synthetic motor oil and synthetic lubricants have been designed to improve performance in all conditions and