If I can find 6.0 heads off a truck are these good with a H/C setup or not.

Will they need port/polish

or is cam only better than getting these heads

PS. if cam only is better I can handle a big rough cam. The chevelle's was pretty nasty so that dont bother me

What is a good cam only cam

 

What all do you have done to the trans am right now? Also, what year was your chevelle? I had a restored 67 myself until I got rear-ended on the way to school.

 

T/A is stock right now. But I will get bolt ons before the H/C or Cam Only mods. Just wondering in case I'm in a junkyard and can get a good deal.

The chevelle was a 69 SS with a punched out 454 port and polished square port heads, cam,. Pretty much a full bolt on and H/C big block.

 

Sounds badass. Mine was a good ole 350/th-350. Yours sounds like it was a little more fun than mine.

 

The 6.0L heads are best for forced induction. I also wondered this..

For P&P heads, the best are casting 243 (LS6) and second are any centerbolt cover LS1's most availible casting is 241.

The literature I've read says that the LS1's flow EXCELLENT for any stock head and the ls6's are like so-so ported ls1's. I've also always read that an alright port and polish job can be done if you have the tools and skill, but its tricky.

The key is to incease airflow without compromising velocity. With the intakes, there should be minimal porting, but the valve bowls and that area need work the most.

 

the problem with the 6.0L heads i think is that you'll be increasing the size of the combustion chamber...lowering compression. which is NOT what you want when building a naturally asperated motor.

a good set of ported 5.7 or 5.3L heads will flow all you need, and will maintain or boost compression. in the end making more power.

going with a slightly smaller cam, and good heads will make the car more street friendly. both in drivability and broader power band.

for a relatively easy 450rwhp combo:

full bolt ons
F14 cam
Dart Pro-1 225 heads

the cam alone pretty regularly yields 400rwhp on stock heads

 

Goddamnit. If you post what I'm about to say, then why should I post anymore?

 

LOL its soo funny how you 2 jump on these cam/head questions with the F14 hehe. I'm gonna start beating you to it

 

i think part of my reason is just to **** mike off....

jeff - 1
mike - 0

but looking back at my setup, i should have gone with the f13 or f14 like i was originally thinking. somehow somebody talked me out of them, i think saying that they were overly hard on springs.

i'm 99% happy with my cam choice...it shows really flat torque curve and good power.

i'd be happier if the small issues with the setup had not occured prior to the dyno. i think i would have been alot more satisfied with the result.

the tuner didn't do a great job on the tune i don't think, especially not the part throttle stuff.
and when he put the engine back together, he didn't adjust the throttle cable. it was only opening the throttle blade about 85%...wasn't even touching the throttle bump stop...that easily could have robbed me 5-7hp. and with that small boost in power i would have made my goal of 390-400rwhp cam only.

with that resolved, and the addition of the true duals...i'm confident i've made up the difference