h53speed

I've been looking into head and cam installs myself and I would say that the 4-5 G's doesn't include the installation. I know that S3 heads are really expensive and a camshaft install which will take in the neighborhood of 9-16 hrs depending on the mechanic will cost you around 675 to 1200 bucks add that to the installation of heads... You're talking big dollars. Learn to do it yourself or spend the big $$$.

last of the Z28's

can anyone help out though on the spec side ls1 heads vs ls6 ?is it better 2 go ls6 or once everything been ported and stuff r they about the same?how do u increase compression?whats the diff btween 5.3 5.7 6.0 heads?what does lsa stand for? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

F8L Z71

This exactly the type of post the warrants keeping a SEARCH function around. <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />

XAntivenomX

iTrader: (5)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">This exactly the type of post the warrants keeping a SEARCH function around.
</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Exactly. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> <img border="0" alt="[judgement]" title="" src="graemlins/gr_judge.gif" />

Once you have all this power, you're probably gonna want a 12 bolt or 9in rear end to handle it. Possibly a built transmission, too. Those aren't cheap.
I am not going to go to aftermarket heads until I can afford both of those things. I may be limiting my potential, but at least i can be pretty sure I'm not gonna break a bunch of stuff.
I'd rather be able to use slicks and launch hard and run mid elevens(my goal with stock heads) than spin half way down the track with DR's or street tires(what I would do to avoid breaking things).
Sorry for the rant, but I think people get caught up in dyno numbers and forget about everything else.

<small>[ August 12, 2002, 11:19 PM: Message edited by: Anti Venom ]</small>

XAntivenomX

iTrader: (5)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> I think I can get over the 450 mark now that I have new headers. On my 448 dyno run, I had two crushed primaries (thanks SLP ) I would imagine I am closer to 460 now. Also, I think I could net a few more ponies if I lower the lift on my cam. The duration is there, but I think I have too much lift. It's in the high .560's </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Huh? Dude, did you mean .660 <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> ? My cam is .581 and I have stock heads. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Black Magic

I think I can get over the 450 mark now that I have new headers. On my 448 dyno run, I had two crushed primaries (thanks SLP <img border="0" title="" alt="[Mad]" src="gr_images/icons/mad.gif" /> ) I would imagine I am closer to 460 now. Also, I think I could net a few more ponies if I lower the lift on my cam. The duration is there, but I think I have too much lift. It's in the high .560's.

But the real reason I posted is not because of the engine. It's because of the support systems. I know F8LPONY has had some of the same problems as I have. Unless you have built every last piece of your drivetrain, don't even consider heads and cam yet. Figure another $5K for that stuff. Rick and I dropped the motor in back in April and still have yet to track test it. A lot is because of our busy work schedule, but a lot is because stuff keeps breaking. I'm getting ready to install my third transmission. I already have a nine inch and custom driveshaft. This is on top of the Stage 4 Star clutch and Mcleod master. I'm going to have to upgrade clutches as soon as I decide to spray. I'm just saying the engine numbers are nice, but take it from me. Dyno sheets don't mean a damn thing when your car sits in the garage collecting dust.

Black Magic

.581 on stock heads? That's WAAAAAY too much lift (IMHO). I dyno'd 397 RWHP on .525 lift and stock heads with the old engine.

Rick@Synergy

iTrader: (5)

Basicly, I dont think you are gonna get away with want you want for very cheap bro. After all is said and done, engine parts, rear, tranny maybe, and installation charges...you are gonna be up in the 10k range.

PontiacMan7901

Anti Venom hit the nail on the head. You guys are talking most horsepower out of a limited number of variables and you seem to forget the whole principle behind drag racing. In drag racing you constantly find out what the weakest link in your car is by breaking things <img border="0" alt="[judgement]" title="" src="graemlins/gr_judge.gif" /> , be it trans, rear, driveshaft, clutches, pushrods, valvesprings...etc. So mr. i'm in love with my caps lock button <img border="0" title="" alt="[Mad]" src="gr_images/icons/mad.gif" /> , be prepared to spend big dollars on this project because you're going to need a pretty much bulletproof drivetrain in order to plant these hp numbers you're aiming for. <img border="0" alt="[Firebird]" title="" src="graemlins/formula.gif" />

XAntivenomX

iTrader: (5)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> .581 on stock heads? That's WAAAAAY too much lift (IMHO). I dyno'd 397 RWHP on .525 lift and stock heads with the old engine.</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Well, it works well for me, so...
I know several guys running cams with higher lift than I have, on stock heads. Eventually I will go to aftermarket heads, but it's gonna be awhile.
I am thinking of trying several different cams on stock heads before I pony up the money for ported ones.