From the October 1987 issue of HOT ROD: A Super Duty conversion kit that could give your Fiero the kind of performance its styling implied.
Pontiac 's Super Duty 4-cylinder engine has established a formidable success record across a broad spectrum of motorsports competition. It has become the dominant powerplant inCharlotte/Daytona Dash series, IMSA's Camel Light GTP series, and is currently enjoying back-to-back national event wins in NHRA's tough Competition Eliminator.
New head requires minor modifications to the head gasket and cylinder block deck surface. Drilling for new water port at the rear of the block is necessary. Template dimensions are supplied with the kit.Top view of the cylinder head with cam cover removed shows twin-cam arrangement and centrally located spark plug. Valve tappets ride in reinforced tappet housings.
Split and raised intake ports are equal length and flanged to accept the fuel-injection manifolds. Each throttle bore assembly is equipped with two injectors. The engine idles and runs at low speed on one injector per cylinder, with the second injector coming on line at higher engine speeds. Sixteen-valve Super Duty engine installed on Fiero engine cradle for Pontiac's Pro Street technology demonstrator. Pontiac Motorsports fabricated various brackets to adapt serpentine belt system with belt tensioner.
Cylinder-Head Gas-Engine Pontiac
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