Slart

Has anybody upgraded their heads and left the stock cam? How much power was the head upgrade worth?

Thanks,

Steve

Onyx LS1

iTrader: (5)

It's rare for someone to swap heads before the cam. You would gain more power from a bigger cam than ported heads, the heads give you the power when you have a bigger cam that allows them to flow. It would be interesting to see what kind of gains ported heads with a stock cam give though.

Slart

I'm interested because I want a minimum impact to drivability. Figure the heads wont cause any loss of idle quality. I'd consider a mild cam afterwards.

So anybody tried it?

Louis

iTrader: (7)

PK 01 SOM WS6 did this for reasons not known, and came up with about 370. Gained about 15/15. Do a search for it, and youll find the previous thread.

The Juggernaut

iTrader: (7)

My brother did it on a 99 Firehawk.Picked up .4and 4mph.
CNC heads.
Hope this helps <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Slart

Sure does. Thanks!

AlonzoVersion 1.0

I did heads and then cam I didnt dyno it though but the sotp meter went way up.They were milled 30thous and are 5.7 heads.

99 Black Bird T/A

iTrader: (4)

Might also add in 1.85 rockers if your going to just to heads, will give more lift and a little more duration for maybe another 5-10rwhp with little or no effect of driveability.

RyanJ

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by G2 LS1:
<strong>PK 01 SOM WS6 did this for reasons not known, and came up with about 370. Gained about 15/15. Do a search for it, and youll find the previous thread.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">PK did it because someone shipped him a stock cam by mistake...and rather wait, he put it all back together with the stocker.

bparker

I did it and gained about 20RWHP