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Looking for cam advice for LT4 intake on 383

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Old 09-13-2017, 07:50 PM
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Street89vette
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Default Looking for cam advice for LT4 intake on 383

Trying to match David's LT4 conversion intake with new 383 with 195cc heads 10.5 to 1 ratio. Looking for good performance approx 5500rpm. Any suggestions will help. Auto/3000 stall and shift kit/ stock rear end.
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Old 09-13-2017, 10:00 PM
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Pwnage1337
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What rear gear?
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Old 09-13-2017, 10:43 PM
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Originally Posted by Pwnage1337 View Post
What rear gear?
3.07 factory on 89 automatic, have to keep the highway gears

Last edited by Street89vette; 09-13-2017 at 11:04 PM.
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Old 09-14-2017, 01:01 PM
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The cheapest and easiest thing to do is the GM LT4 Hot Cam. It will make 5500RPM in a 383 easily and work well with your stall and gearing. Even with the base AFR spring package I would recommend you run 1.65 or 1.7 ratio rocker arm on it.

I could make a little more power with a custom grind from Mike Jones's EHR series Lobes but at considerable added expense.
Will
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Old 09-15-2017, 09:12 PM
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Hotcam is a good default choice.Or one of the smaller cams that Loyd Elliot offers with more lift.
http://elliottsportworks.com/home/?page_id=32

Advanced Induction has some nice grinds as well.
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Old 09-16-2017, 12:14 AM
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I wouldn't pick a cam smaller then a CC503- 224/230 .503/.510 for your set up. What are the flow #s for the heads?
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Old 09-17-2017, 09:24 AM
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..... Are the ports on the heads going to match up to the raised ports on the LT4 intake ? .....
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