vortec 5.7
12-17-2008, 01:15 PM
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vortec 5.7
well guys i just brought a used 97 reg cab short bed 149,000 miles the truck has the tranny rebiult with a vette servo and shift kit,3.73 gears i want more power out of it what do you guys recomned
12-18-2008, 05:13 PM
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LT headers and exhaust
Camshaft
PCM tuning
Torque converter
the GM LT4 Hotcam has dynoed on a Vortec 383 at 330rwhp(around 400crank hp).
The stock poppet injection wont support much more due to the fact that they cant be swapped for higher flowing units.
Westers garage doies sell a flow matched spider however, they will support 440 crank hp.
peace
Hog
Camshaft
PCM tuning
Torque converter
the GM LT4 Hotcam has dynoed on a Vortec 383 at 330rwhp(around 400crank hp).
The stock poppet injection wont support much more due to the fact that they cant be swapped for higher flowing units.
Westers garage doies sell a flow matched spider however, they will support 440 crank hp.
peace
Hog
12-18-2008, 08:29 PM
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my 96 had full bolt-ons. a crane 214-220 cam and 1.5 roller rockers. b&m 2400 holeshot convertor. truck ran 13.90 at 99 mph.
3.90 gears made a world of difference after the cam swap also. the only mods to the tune was added timing and zero tq management using jet dst.
3.90 gears made a world of difference after the cam swap also. the only mods to the tune was added timing and zero tq management using jet dst.
