thorne Posted July 27, 2007 Report Share Posted July 27, 2007 My buddy got his hands on a firebird with a 383 stroker in it. Whats the easiest way to find out the CAM to determine a redline? Quote Link to comment Share on other sites More sharing options...
Bam Posted July 27, 2007 Report Share Posted July 27, 2007 take it apart? lol Quote Link to comment Share on other sites More sharing options...
Jackson1647545504 Posted July 27, 2007 Report Share Posted July 27, 2007 A) Remove the cam B) Go have it tuned by a professional If its a roller or solid there are some pretty common guidelines (relative to redline) Quote Link to comment Share on other sites More sharing options...
nurkvinny Posted July 27, 2007 Report Share Posted July 27, 2007 I'm confused by your questions. Are you: - asking what redline it has? - how to tell what cam is in it? - what would be a good cam for it? Quote Link to comment Share on other sites More sharing options...
Dave1647545494 Posted July 27, 2007 Report Share Posted July 27, 2007 put it on the dyno and rev it till it stops making power Quote Link to comment Share on other sites More sharing options...
Guest ovlo Posted July 27, 2007 Report Share Posted July 27, 2007 rev it out untill the valves float. (bad idea) if you want to find out the specs on the cam withount removing it from the engine. get a cam degree kit from jegs or somwhere. put a dial indicator on the rocker arm and turn the motor over easy way to show max lift. multply it by rocker arm ratio and thats the gross lift Quote Link to comment Share on other sites More sharing options...
AJ Posted July 27, 2007 Report Share Posted July 27, 2007 rev it till she blows apart then remember next time no to rev that high Quote Link to comment Share on other sites More sharing options...
SPLN SUX Posted July 28, 2007 Report Share Posted July 28, 2007 yea just rev it under load untill it falls on its face, then take about 300rpm off that. Quote Link to comment Share on other sites More sharing options...
mtzgr Posted July 28, 2007 Report Share Posted July 28, 2007 I would not go over 6500-7000 on a cheap crank, hydraulic lifter set-up. If it is a race-type motor, ie aluminum rods, solid lifters, good crank, shaft rockers, good springs, etc, let it sing up around 8500-9000. Depending on the cam specs, it may or may not make power to a safe redline. I had a 392 Ford Windsor, hydraulic lifters, nothing too fancy, and it was safe up to around 7000. Quote Link to comment Share on other sites More sharing options...
nurkvinny Posted July 28, 2007 Report Share Posted July 28, 2007 I ran my first 383 with a cheap bottom end and a mechanical cam to 8500. Once. Quote Link to comment Share on other sites More sharing options...
Tinman Posted July 28, 2007 Report Share Posted July 28, 2007 let it sing up around 8500-9000. You will not find a set of 23 degree heads that will make any power in that range. Quote Link to comment Share on other sites More sharing options...
Bam Posted July 28, 2007 Report Share Posted July 28, 2007 I ran my first 383 with a cheap bottom end and a mechanical cam to 8500. Once. best post in this thread. lol Quote Link to comment Share on other sites More sharing options...
NTHER91 Posted July 28, 2007 Report Share Posted July 28, 2007 You will not find a set of 23 degree heads that will make any power in that range. Why do you have to know so much?! Quote Link to comment Share on other sites More sharing options...
Billiumss Posted July 28, 2007 Report Share Posted July 28, 2007 Put it on a dyno to see where the power starts to fall off. How high of red line is due to intake, cam heads. Quote Link to comment Share on other sites More sharing options...
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