01Z0H6

iTrader: (63)

Was wondering what kind of gains "if any" with just simply bolting a brand new set of 04 Z06 heads ( yellow springs/ orange valves) onto my 02 LS1 block?

I don't really drag race... just something fresh... you know..?

Here are my current mod's...
thanks..

lid,k&n filter,pacesetter long tubes,lanes true duals,ported TB, LS6 intake, RPM4 232/236 .595 .601 @ 114+2, ASP pulley,HP tuners tune.. backed by a Yank SY3500....?

Thanks for your time...

porting/polishing gets pretty expensive...

moeZ28

iTrader: (7)

LS2 heads are the LS6 heads.

01Z0H6

iTrader: (63)

Wow... that helps...

Anyone else?

redtail2426

iTrader: (10)

on a stock engine i think about 15-20hp and on a modded motor like yours with that cam i would say a good 20-25hp.be sure to reduce timing because of the improved combustion chamber.

PREDATOR-Z

15 > 20 is a good guess. You'll benefit from the bump in SCR and the slight increase in flow.
If you do so just remember to get the 04 gasket too, and PTV allowing a thinner gasket will improve that even more.
But I think assembled LS6 heads are like $1200 or so + gaskets and bolts. (unless used)
So You could get a nice set of ported ones for around that price (give or take a 100 buckaroos), Patriot, TEA to name a couple

01Z0H6

iTrader: (63)

Now that is some good info...Thanks...!

my01camaroz28

iTrader: (15)

Of course you will get better performance if you had them ported and polished, but the head stock isn't bad. I had mine that I just bought bench flow tested this week and will match a cam to those numbers. They almost can't be beat with the price I paid for mine.

redtail2426

iTrader: (10)

hey i bought from the same guy as you did a few weeks ago.would you be able to post the flow numbers you got?I sent mine to bo white to get fully done up.

my01camaroz28

iTrader: (15)

Can you send me some info on the guy or place you sent your heads? Is there a web site, contact numbers, pricing, etc? Here are the stock head charts too.