8.1 RHP/ Elgin Stage 1 Camshaft walbro The Gen V Truck Norris

The Gen V Truck Norris grind is a popular choice for those looking to delete DOD/AFM

Recommended spring for our Truck Plus cam is the new RHP Beehive valve springs

PAC 600" lift valve springs gives you all of the performance at a fraction of the cost

Each injector set undergoes precise matching on our flow bench

8.1 RHP/ Elgin Stage 1 Camshaft walbro The Gen V Truck NorrisThe RHP Elgin Stage 1 8. 1L cam offers 25 30 hp and 25 30 lb ft of torque gains over the stock 8. 1L cam, while maintaining a near stock idle quality. Shown here compared to the very popular ZZ502 BBC cam (required firing order change), the RHP Elgin Stage 1 cam improved power below 3500 but lost out to the bigger cam above that rpm range. This test was run on a junkyard 8. 1L equipped with a ported stock intake manifold, 102 mm throttle body and dyno