Build Your First Engine
Stage II: 309 hp for $2,150
We upgraded to Stage II of the Street Avenger system with a cam and header swap. The Street Avenger Hot Street package recommends Lunati PN 51017, with 218/228 degrees of duration at 0.050 and 0.536/0.536-inch lift on a 112 LSA. We'd previously mocked up the engine with this cam, and there was no problem with the piston-to-valve clearance on the stock Ford heads; however, Lunati ground the cam on a smaller basecircle than the stock cam (possibly to clear the crank in a stroker application such as a 347), so we had to change to longer pushrods to accommodate the nonadjustable factory-valvetrain arrangement. We also swapped on a set of Doug's Headers tri-Y headers designed for a '65 Falcon, the car we ultimately intend to swap this engine into. Although these are obviously not the headers you'd get from Holley's Hooker division, we had used them in the past and knew they kicked ass in the power department. At $550, they're also pretty spendy with ceramic coating. We included them in our price list, but depending on your car, Hooker may have a cheaper alternative. Result: 309 hp at 5,500 rpm and 324 lb-ft at 4,500 rpm, a gain of 31 peak horsepower and 9 lb-ft. Total cost: $2,150, or $6.96 per horsepower. View Related Article
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Dodge Charger Research
When looking for your next vehicle, think about the Dodge Charger, a stylish car with nice features. With available rebates and prices, you can find a new Charger for $25,080.00. It comes with a standard Automatic transmission, and RWD drivetrain. You also might want to research the Pontiac Grand Prix and the Chrysler Crossfire.
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