The Ram Jet 502 features a 4.00" forged crankshaft, 4.47" forged aluminum pistons, forged rods, and a roller camshaft. The aluminum heads are our highly efficient oval-port intake design, and they utilize 2.25" intake and 1.88" exhaust valves. Underhood clearance at the throttle body should be checked for interference.
With an 11" fuel-injected intake manifold flexing out of the top of a 502" big-inch Rat, the GMPP Ram Jet 502 is just plain cool. Not only attractive, the Ram Jet intake adds a significant amount of function to the big-block with amazing throttle response that you just have to experience to believe. Combining our aluminum-headed 502 with a modern fuel-injected intake results in 502 horsepower and 565 lb.-ft. of neck-snapping torque. With the Ram Jet intake, you also have over 500lb.-ft. of torque available from 2200 rpm on up.