The Chevy DZ 302 pursuit engine was introduced by Chevrolet in 1967 to accomplish the Camaro bounteous competitive in the Sports Vehivle Club of America (SCCA) Trans-Am racing series. At that age, the just out Z/28 engine preference was manufactured in a smaller dimensions due to changes in the specialist rules of the SCCA relay. As it turned elsewhere, this virgin comp became a exclusive detail that was, and much is, mere beautiful to motorcar racing enthusiasts.
Rods
The engine was manufactured with rods in a floating wrist style. A metal stress-relieving advance proclaimed as Gunfire peening was used to build rods in 1968 and in subsequent models of the DZ 302. Peening improves the Belongings of metal by rapidly hammering it with Gunfire peens (brief spheres of metal) that make dimples on the surface.
Oil Pan
A specially untrue baffled oil pan was used in manufacturing all 302 engines. The intake duration is 229 degrees Fahrenheit. Exhaust duration is 237 degrees Fahrenheit. Overlap at zero lift is 78 degrees. The same design was used in high-performance 327 engines in 1964 and 1965. Although solid lifters require more maintenance than hydraulic lifters, they are more reliable at high speeds.
For all three mould senility, the pieces of the crankshaft were tuftrided, which is a heat mode in which chemicals are used to harden the bearing annals surfaces. The Eccentric person in the 1967 mode was made with 2-inch rod journals and 2.5-inch main journals.
Intake Manifold
The intake manifold was single four-barrel aluminum high-rise from 1967 to 1969. This design gave the best advantage to the other parts of the high-performance engine. A slight change in the 1967 design was a thermostat hole that was added to the intake. The location of the hole was slightly off center toward the driver's side of the car.
Camshafts
Chevrolet used a solid-lifter 30/30 camshaft in the DZ 302 engine design. The measurements for the camshaft are .452 inches for the intake and .455 inches for the exhaust lift. The baffles in the pan stopped the high-pressure oil pump from life uncovered when the vehivle hurried, turned corners or stopped.
Crankshaft
Crankshafts false of Shod steel were needed since of high-reaching rpm in the 302 engine.Engine Power
The small engine block rated a conservative 290 hp at 5,800 rpm. It produced 290 foot-pounds of torque at 4,200 rpm. Bore and stroke are 4 by 3 inches.
