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pro comp heads vs older afr heads

earnhardtgm3

Veteran Member
Dec 18, 2007
4,590
Camaro Country,GA
franks70camaro said:
so what cam would u guys recomend i put in my 383 to get the most burn ur tires power lmao

What's your compression in your motor?I went with the Lunati VooDoo series hyd roller in mine:Smokes the tires rolling or from a dead stop well past 2nd gear with modified turbo 350.This is what Lunati recommended for the street and have good brakes with no problems.
Retro-Fit Hydraulic Roller. Fair idle. Strong power increase in mildly modified engines with excellent throttle response. Will work with stock converter in 383 and up size engines or 2200 RPM stall speed converter in 305-350 cubic inch engines. Likes 3.23-3.73 rear gears. Also the largest cam for inboard/outboard marine applications.

Advertised Duration (Int/Exh): 270/278
Duration @ .050 (Int/Exh): 219/227
Gross Valve Lift (Int/Exh): .515/.530
LSA/ICL: 112/106
Valve Lash (Int/Exh): Hyd/Hyd
RPM Range: 1800-5800
 

5spd540

Veteran Member
Lifetime Gold Member
Sep 19, 2009
12,382
Guyton, GA
franks70camaro said:
sounds like a good cam no idea what my compression is got flat top pistons with 4 valve reliefs whats the lunati part number on that
What kind of power are you after
 

newschool72

Veteran Member
Feb 25, 2011
1,185
forsyth,ga
franks70camaro said:
sounds like a good cam no idea what my compression is got flat top pistons with 4 valve reliefs whats the lunati part number on that
If you are serious about finding the RIGHT cam for your setup and your driving intentions, you need to figure out what your compression ratio is. Do you know what size combustion chambers you have? Do you know what your head gasket thickness is? Do you have a brand and part# on the pistons? Get a good idea of those things and you can get a ROUGH compression ratio. That would go a long way in finding the cam that will give you good valve timing events and get the most out of your combo. Without at least the combustion chamber volume and the size of the valve reliefs, its all just a shot in the dark. Do a little research on what you have and you will be much happier with your cam. Lastly ,after you get the above info, give a reputable cam company or a great engine builder/cam guy a shot at setting you up with a good bumpstick.
 

jroach

Veteran Member
Apr 9, 2007
1,321
petersburg MI
newschool72 said:
If you are serious about finding the RIGHT cam for your setup and your driving intentions, you need to figure out what your compression ratio is. Do you know what size combustion chambers you have? Do you know what your head gasket thickness is? Do you have a brand and part# on the pistons? Get a good idea of those things and you can get a ROUGH compression ratio. That would go a long way in finding the cam that will give you good valve timing events and get the most out of your combo. Without at least the combustion chamber volume and the size of the valve reliefs, its all just a shot in the dark. Do a little research on what you have and you will be much happier with your cam. Lastly ,after you get the above info, give a reputable cam company or a great engine builder/cam guy a shot at setting you up with a good bumpstick.
don't forget pin height, the engine in my car now is only 8.2:1 with flat top 4 relief pistons and heads that are roughly 77 cc, and a thin gasket because my dumbass builder sold me pistons that sit 0.052" down the bore on my undecked block.
 




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