LT1-LT4 Modifications 1993-97 Gen II Small Block V8

383 questions

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Old Jul 6, 2009 | 08:45 PM
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96Formula6spd's Avatar
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Hey guys my short block is needing rebuilding. I got a few quotes at machine shops. The ones around here quoted my around 650-700 dollars. Anyways I have found a 383 short block that is completely built for $1500. Anyways I was wondering if my top end off my old engine would work. Its a lt4 hot cam kit with stock 561 heads. Would this be enough to power a 383 or would porting be required. I have herd that the hotcam is a little small so I might change that to like a cc503. Here is a link to the engine.

http://www.ls1lt1.com/forum/showthre...d=1#post229083

What do you guys think?
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Old Jul 6, 2009 | 11:27 PM
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a hot cam and a cc503 is to small for a 383. Porting is never "required" however instead of shitting and getting it will just get. My 383 is stock headed, however the cam is far larger than them two.
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Old Jul 7, 2009 | 01:16 PM
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OP, what's your budget? With a stroker motor, good flowing heads to feed those extra cubes is essential for making power. Invest in good heads, they will pay you dividends. Also very important is a wise cam selection. If I were you I'd get a custom cam to match the heads you choose. Bolt on all of the supporting mods and enjoy.
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Old Jul 7, 2009 | 05:10 PM
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my 383 is stock headed but i ported myself with a cc305 ,m6,4.10 and it will run high 11's at the track
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Old Jul 7, 2009 | 09:54 PM
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Well looking ant the budget its not enough at the moment. So I am going to go with rebuilding the 350 and then work on the suspension and a better radio.
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