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Gm 502 Big Block

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Estimated to produce 450 horsepower and 550 lb-ft of torque, the GM 502ci big-block is topped with a Holley intake and Holley Commander 950 throttle body system. Exhaust gases are routed through a pair of Hedman headers, a 3-inch Flowmaster exhaust, and Hazel Dell muffler. Electrical needs are met by a 140-amp alternator and a pair of Optima RedTop batteries. The ’plant is cooled by a Ron Davis dual pass radiator with dual 14-inch Spal electric fans. Power is routed downstream through a TH400 transmission that has an Art Carr valvebody, B&M pan, and B&M cooler with electric fan. Sending the power to the axles is an NP203/205 Off Road Design Doubler transfer case setup with JB Conversions LoMax conversion in the NP205. A front driveshaft with 1410 U-joints and a rear driveshaft with 1480 U-joints spin the axle’s internals.

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