Good facts please

**odinsonthor** · 09-25-2010, 02:31 PM

Ok guys , I have a question. Very important.
What are the best heads that produce good horsepower/ flow numbers for ls1 motor?
I have 1st stage ported 243 heads.

**86 IROC-Z** · 09-25-2010, 02:33 PM

**blackSS01** · 09-25-2010, 02:33 PM

Originally Posted by odinsonthor

Ok guys , I have a question. Very important.
What are the best heads that produce good horsepower/ flow numbers for ls1 motor?

Should be in the "Internal" section but I'll post some info!

There really is no head that "Is Best" for these motors that I have found

A good head that is fairly cheap now a days is the LS6 head (243/Z06) Light weight valves, flows more then LS1, good for about 20 hp out the box with no other mods to them, easy to find and last but not least.....affordable

**justinmc978** · 09-25-2010, 03:51 PM

Originally Posted by 86 IROC-Z

"maybe I should fill my apartment with stacks of wheels.."

**Blackbird WS6** · 09-25-2010, 05:17 PM

the best flowing has to be some kind of CNC posted head.....i for one like AFR and run them on my 408 but thats just my .02......im sure there are others out there like TF and whatnot BUT to flow the best it has to be CNCed