2000 M6 PEWTER SS

iTrader: (2)

Ok heres the deal i currently have a 2000 ss m6 with bolt ons and a 228/232 .600/.609 w/ 109 lsa cam. My intentions in the future are boost it either with a procharger D1 or most likely a twin turbo kit but for the mean time i would like to get heads. What are my options i want a economical set of heads that would not make the car a slug for now on motor with spray in its immediate future but when its time to invest in boost will work very good with that. I know when i boost the car i will have to change the cam but thats no big deal...please give opinion on heads and why.

brad8266

iTrader: (23)

The best heads for what you have now are small chambered heads, the best heads for a blown app are large chamber heads. You cant get small ones now and make them larger later. Your stuck in a hard place kind of. You could run a high compression blown motor and get the small chamber heads and be done with it though. It will take more tuning and maybe high octane gas to prevent knock retard.

miami993c297

iTrader: (6)

I think some good compare in this thread (with some technical details):

https://ls1tech.com/forums/generation-iii-internal-engine/555622-head-option-s.html

Christian

black01_WS6

iTrader: (13)

I would reccomend getting some tsp or similar ls6 heads for now, and when you decide to go boost, sell the heads for some larger ones. Or you could pick up some 5.3 heads, and sell them later as well.

brad8266

iTrader: (23)

Good read!!

Studytime

iTrader: (15)

Just get some decent heads for now. From the outside looking in, there are MANY people who make comments like "most likely a twin turbo kit (is in my future)", that never materialize. I'm being frank with you but honest. Later down the road, get some good heads for your forced induction build. I'm guessing my comments are relevent because if you had the nearly $10K to buy and install a twin turbo setup then you wouldn't be asking questions about a good economy, budget head.

Ben T.

2000 M6 PEWTER SS

iTrader: (2)

I guess i should have specified more im really not to interested in aftermarket heads like afr, trick flow, et or dart heads, im more so internested in gm heads choices L92, ls6, lq9, or 5.3 heads. Im just not trying to do things twice im not making a all out race car out of this car, im looking for the happy medium if there is one. looking for something to benefit me now and even more when i boost it, i was contiplating boosting it real soon but i figure i need to heads anyway and i have a perfectly good nitrous kit sitting around

black01_WS6

iTrader: (13)

I would use the ls6 heads stock, but when you go FI then send them out to get worked over for boost. -they will work with both applications- middle of the road.

Some people like the lq9 heads for FI as they will help lower compression= which means more boost at safer levels. -Use these if you are going to boost right away, as you may loose some TQ with these.

ty_ty13

iTrader: (42)

if your not trying to fit a certain class or make more than 700 fly wheel HP then just stick with nitrous.... much easier to hookup and use...

ty_ty13

iTrader: (42)

what are your plans for the car? if you not looking for a sub 10.00 car then boost isnt a must...

2000 M6 PEWTER SS

iTrader: (2)

I would like to have a mid to low 10 sec car for the street with good drivability. I only want to use the nitrous for short time cause filling the bottle would get on my nerves or having to maintain the pressure, so what i want to do is build based around my stock 346 for now and buy a forged short block later and switch everything over...but i think i may use the ls6 heads cause i see na$ty ta is using them for his application and seem to be doing him good.....As far as track car i have different plans with another vehicle i dont want to cut up and destroy my ss.

quick346

iTrader: (4)

So let me get this straight. You want a CHEAP set of heads to put a 5k pro charger on or poss a 7k and up tt sytem on? is that right.

I am getting sleepy and this is not makeing sense.

and you want to go low 10's all day on a stock 346

don't get me wrong i must have read it wrong.

quick346

iTrader: (4)

that is what i was thinking

2000 M6 PEWTER SS

iTrader: (2)

yeah i guess you did read wrong, cause down the road i want a forged short block which can with hold more boost....and besides 500-550 hp on a stock block should push this car to 10's anyway with the stock block

2000 M6 PEWTER SS

iTrader: (2)

and besides i never said cheap heads....i just perfer gm heads for 1200-1500 as opposed to 2200-2500 for afr's or et's when the gm heads are tryed and proven my question is which gm head will suit my needs and goals best thats all im saying and since when is $1200-$1500 cheap

hammertime

iTrader: (1)

sorry man, but for all intents and puposes, economical = cheap

the way I see it you have two options:

1) LS6 heads as stated above, run with moderate boost until you build a forged short block, then use custom pistons with the dish necessary for the compression you want (8.5 - 9.5:1)

2) Don't bother with heads and start saving for those turbos. The most economical heads are the free ones already on your engine. Heads aren't as much of a big deal with turbos until they resrict flow and increase boost with no power gained. You can make plenty of power for 10's with stock castings.

Otherwise, as stated in post #2 above, you're probably going to have to spend the money twice to do it the way you are asking and do it right.

ty_ty13

iTrader: (42)

if all your wanting is a mid to low ten second car then you dont really need nitrous at all....

you can run that with all motor.... or you can just swap to forged pistons and get a nice set of heads and run about a 200 shot and run 10's all day long for a pretty cheap price.... unless you do road race courses then the nitrous would be your best bet.... with FI you get into alot of money spent...

1997bird

iTrader: (2)

I'm not trying to be a jerk or anything, but more of the devil's advocate. Add up how much a year you will be spending on n2o. That is "rented" HP that you will never get back. Then look at the average life span of a FI induction system and divide that out and compare that to your nitrous costs. I would be willing to bet that the FI will be cheaper.

ty_ty13

iTrader: (42)

he said he has a track only car so i assume this car will not be at the track every weekend.... also mid tens would be alot less trouble and weight with nitrous.... even a 150 sinlge or double jet would work...

1997bird

iTrader: (2)

He will still go through at least ten, ten pound bottles in a full race season on a 150-175 shot of n2o. He should be able to get 8 passes in on a 150 shot out of a ten pound bottle. About 6-7 passes in on a 175 shot. You can figure at least 3 passes per race. If he goes to test and tune nights he can get about 10 passes in there a night. I know here it is $3.75 per pound before taxes. Where as the other route he has his power with him all of the time whenever he want's it. I am not trying to be a PITA but just throwing some numbers out there so the origionator of this post will look at all the costs before making a decision.