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01-20-2009, 12:58 AM
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estimate hp on 383 build
im building a 383 out of a 97 vortec roller motor it will have 2 v.r pistons 6 inch rods just hair above stock compu roller cam 1.6 roller rockers,balanced assy,vortec heads with stock size titanium valves,stock tbi,shorty headers,and will go in a 1995 gmc 1500 4x4 with 5 speed and 3.73 gears with power chip and flowmaster mufflers,and new valve springs and retainers, thanks in advance for your input what kind of hp and tourque can i expect from this combo
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01-20-2009, 10:24 AM
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I'll take a guess.
better exhaust 15hp slightly bigger cam 10hp so a 350 vortec with 270hp and 330ftlbs (just a guess), would go to 295hp and 360 ftlbs with those mods. then add 9.4% for the extra engine size. so 320hp and 395 ftlbs would be my guess for your new 383.
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01-20-2009, 11:46 AM
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anybody got info
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