Built with help from Super Chevy Magazine to demonstrate the potential of a
carbureted, centrifugally blown engine using 91 Octane pump gas and off the
shelf parts, this 3,300 lb. car has far exceeded expectations, evolving into an
extreme example. This particular 427 ci combination is the product of lb/ci
rules observed in heads up racing. When rules aren’t a factor, this level of
power is more commonly produced using a 502 based engine, often times using
higher octane fuels. This engine makes well over 3 hp/ci with an Air to Water
intercooled F-2 ProCharger breathing 28 psi of boost through a pair of lightly
modified 450 Holley carbs. Extreme ProCharged applications running racing fuel
are currently making in excess of 5 hp/ci, propelling cars to speeds well in
excess of 210 mph. ATI does not recommend duplicating this Nova’s particular
combination, as there are easier ways to achieve these same power levels. Please
contact our technical service staff to determine a combination that best meets
the needs of your particular application.
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1969 Super Chevy Nova,
Config. 1 |
427 cid, Production Block and Crankshaft GMPP Rect.
Port Heads, Solid Roller Cam, 7800 RPM Single Carburetor, 91 Octane, 3400
lbs F-2 ProCharger, Serpentine Drive, 3 Core Race Intercooler 24 psi, 1275
HP, 158% HP Gain 3 HP/ci on Pump Gas |
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1969 Super Chevy Nova,
Config. 2 |
427 cid,
Production Block and Crankshaft GMPP Rect. Port Heads, Solid Roller Cam, 7800
RPM 2 450 Holley Carburetors, 91 Octane, 3400 lbs F-2 ProCharger, Cog
Drive, 1800 hp A/W 28 psi, 1495 HP, 203% HP Gain 3.5 HP/ci on Pump Gas
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Results from November 2003 Super Chevy Show at Las
Vegas
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