hawk584

iTrader: (1)

Is it possibility that all I need is a cam? The motor blew a few years ago. Stock firehawks put down about 275 rwhp. I had the motor rebuilt to a 383 and I have not seen the horsepower numbers at all. With the “383” and long tube headers, the bird dyno’s at about 285 rwhp’s now. My best guess is that the person who built the motor didn’t do anything other then new bottom end, bore, stroke and didn’t touch the top end. Could running a stock cam really kill a 383ci’s hp that much?

96capricemgr

iTrader: (1)

HEADS are key to making power, as well as the cam, adding cubes without the supporting stuff means nothing. Given the little more HP he may have even put a little more cam in it. One POPULAR engine vendor sells "440hp" 383s with poor port work and cam selection and manages to repeatedly put down 32xrwhp, and this is someone guys think highly of.

ABA383

iTrader: (1)

Who built the motor? What components did the builder use? Like said above just adding cubes does not add hp..You need the heads and cam to move the air...Did you have the motor built and if so why don't you know exactly what was done and why didn't the builder suggest the benefits of having the heads done and adding a cam to match the combo?

--Alan

IH8FORD

iTrader: (6)

I know someone around here where I live that has a 383 ans stock heads and cam . His car runs about as good as my my stock lt1 w/ a good trans and coverter.

hawk584

iTrader: (1)

well, i'm getting the motor pulled out and pulled apart to see if i got screwed over. i'm hoping all it needs is top end work

Camaroholic

iTrader: (1)

I've driven a stock headed 383. Yawn.

My 383 LT1 has mildly ported heads and a 230/236 cam. No dyno, but it feels like a high 12 second car to me (at 3900 lbs). It's "just right" for street manners to me.

phrozen755

iTrader: (5)

I always got a stiffy looking at your 383...













and I say that in the least gay way possible.