Page 56 of 2009 Performance Parts by GM Parts Direct

crate engines big-block ram jet 502 12499121 with calibrated controller and wiring harness crate engines big-block detailed installation instruction modern performance and unique aesthetics with classic big-block performance if you re looking to make the ultimate underhood statement look no further than the incomparable ram jet 502 it blends the legendary torque and performance of the big-block with a modern port fuel injection system and tunnel ram-style high-rise intake manifold in short it s the best of both worlds in a visually stunning presentation the bottom end of the ram jet 502 is the same sturdy assembly used on other 502-inch crate engines that includes a stronger cylinder block and all-forged reciprocating assembly a hydraulic roller camshaft delivers 0.527/0.544-inch lift specs and aluminum oval-port heads with 2.25-inch/1.88-inch valves serve as the engine s lungs the unique ram jet fuel injection system stands 11 inches tall at its highest point and consists of a two-piece manifold/plenum assembly eight injectors a throttle body and an updated mefi 4 controller setup instructions are included making it a simple plug-and-play installation you ll need to check your ride for clearance before closing the hood over the ram jet 502 then again it looks so impressive you may just want to cruise around with the hood off unique aluminum intake manifold 502 hp 565 lb-ft torque installation notes · the ram jet 502 requires a 12-volt power source and ground coolant exhaust system fuel feed and fuel return line to the fuel tank an in-tank fuel pump is recommended · clutch linkage bosses are now drilled and tapped when using cast-iron exhaust manifolds lower head bolts may need to be replaced with bolts with shorter heads for clearance · designed for pre-1976 street vehicles or any off-road vehicle · not intended for marine applications · important for a safe proper and troublefree engine break-in the mefi 4 computer has a green mode that controls rpm during the break-in period from start-up to the end of the first hour is 4000 rpm the second hour is 4500 rpm and the third hour is 5500 rpm ram jet 502 dyno chart possible applications build a fuel-injected 55 57 shoebox go high-tech with your 32 hot rod restification for a show car applications have not been validated they are merely suggestions of how you might enjoy your gm performance parts crate engine some applications may affect engine warranty see page 352 for specific warranty information some applications may not be emission-legal check state and local ordinances ram jet 502 tech specs part number engine type displacement cu in bore x stroke in block p/n 19170540 crankshaft p/n 10183723 connecting rods p/n 19170198 pistons p/n 12533507 camshaft type p/n 12366543 camshaft lift in camshaft duration 050 in cylinder heads p/n 12363390 12499121 chevy big-block v-8 502 4.47 x 4.00 cast-iron with 4-bolt main caps forged steel forged steel shot peened forged aluminum hydraulic roller .527 intake .544 exhaust 224° intake 234° exhaust aluminum oval port 110cc chambers valve size in compression ratio rocker arms p/n 12368082 rocker arm ratio distributor p/n 1104060 throttle body p/n 17113524 water pump p/n 19168602 flexplate p/n 10185034 recommended fuel ignition timing maximum recommended rpm balanced 2.25 intake 1.88 exhaust stainless steel 9.6:1 stamped steel 1.7:1 hei type included aluminum short-style 14 92 octane base 8° btdc 30° total 5800 external note distributor with melonized steel gear must be used with long blocks and partial engines with steel camshafts or engine damage will occur available for purchase online at gmperformanceparts.com gm performance parts crate engines include a 24-month or 50,000-mile/80,000-kilometer limited warranty gm performance parts does not utilize any used or remanufactured parts in this crate engine for a complete list of parts to complement and finish this engine turn to page 114 buy online at www.gmperformanceparts.com 109 108 buy online at www.gmperformanceparts.com

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