Genuine GM 12568778 Engine with Iron Head and Roller Cam

$7,826.39 $6,245.56
(as of 19/08/2014 02:25 - info)
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This engine is not designed, nor intended to be used in any marine applications. Designed for pre-1976 street vehicles or any off-road vehicle. Engines installed in vehicles registered and normally operated outside of the United…

This engine is not designed, nor intended to be used in any marine applications. Designed for pre-1976 street vehicles or any off-road vehicle. Engines installed in vehicles registered and normally operated outside of the United States carry no warranty. Clutch linkage bosses are drilled and tapped, plus includes a provision for a mechanical fuel pump. This engine includes a 6 qt. truck oil pan. When installing a Gen V or Gen VI big-block in most Chevelle, Camaro, or similar chassis, the oil pan and pump must be modified or changed to clear the front cross member. There is no replacement for displacement, and torque is king. These 502 child. cast iron 4-bolt mains with 1-piece rear main seals with approximately 8. 75 : 1 compression and 450 horsepower at 5,250 rpm and 550 ft. /lbs. of torque at 3,500 rpm. These blocks are fit with 1053 forged steel crankshafts, forged aluminum pistons with forged steel shot peened rods with 7/16 in. bolts. Hydraulic roller camshafts with . 510 in. intake lift, . 540 in. exhaust lift and duration at . 050 in. for intake is 211 degrees, and 230 degrees for exhaust. Cast Iron cylinder heads with 118cc combustion chambers with 2. 19 in. intake, and 1. 88 in. exhaust valves. Rock arms are installed with 1. 7 : 1 ratio. They are then topped off with aluminum dual plane intake manifolds and dress the engine with a cast iron water pump, 6-quart oil pan, wind age tray, 14 in. flex plate and torsional damper. So, all you need to do is provide an 750 cfm carburetor, HEI ignition system, headers with 2 in. diameter by 30 in. long primaries and low restriction mufflers and a car with big sticky tires. These 502 HO crate engines require electric fuel pumps because the 502 GEN VI blocks have no mechanical fuel pump bosses. The 502 HO is not intended for marine use, and should only be used in 1978 and earlier pre-emissions street vehicles or any year off road vehicles.

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