Chevrolet Performance 12499121 Ram Jet 502 Big Block Crate Engine
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The Ram Jet 502 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. It’s a combination that offers uncompromising performance in a visually stunning presentation. 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. Supporting the unique induction system is a robust bottom end with an all-forged rotating assembly and a smooth hydraulic roller camshaft. The heads are high-flow aluminum oval-port parts from Chevrolet Performance. You’ll need to check your ride for clearance before closing the hood over the Ram Jet 502.
- Chevy Big-Block V8
- 502 engine displacement
- 4.47 x 4.00 bore stroke
- Cast iron block with four-bolt main caps
- Forged steel crankshaft
- Forged steel shot peened connecting rods
- Forged aluminum pistons
- Hydraulic rolled camshaft
- .527 intake/.544 exhaust camshaft lift
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Q & A
Speedway Motors and Classic Trucks called on GM Performance to power their ground up rebuild of a 1952 Chevy truck that was built in celebration of Speedway Motors’ 65th anniversary.