LS6 conversion

[badinfluence]

so i've been looking around and a bit of researching

01-02 LS1 injectors are 28.8lbs, same as LS6 (LS1/LS6 fuel rail is the same)

LS1 heads are worse than LS6 (found about 10-15rwhp difference) so a mild port job might make up for some of that

so really if I got a LS6 valvetrain/cam/intakes I would essentially have/almost have LS6 stock power correct?

blocks are different from what i've read but very minor changes

LS1 vs. LS6 throttle bodys, are they different? I already have a ported 98 LS1 throttle body

I know aftermarket is the way to go but in terms of cost (~$500 for the LS6 parts i would need) and preference I think I'd rather have a LS6 "conversion" kind of setup someday

[Superman09]

intake is different, $350 for a used one. PCV system is different. I really wouldnt spend all that time and work just going to standard ls6 upgrades. A head/cam swap is not an easy quick task to do, if you do it and arent 100% happy, you wont be looking forward to tearing it down again. I'd suggest saving the money you'd spend on the minor head port and put it towards an aftermarket cam and better springs. You can make 400 rw cam only with the right set up and you wont have to pull your heads.

[Keego Ridah]

intake is different, $350 for a used one. PCV system is different. I really wouldnt spend all that time and work just going to standard ls6 upgrades. A head/cam swap is not an easy quick task to do, if you do it and arent 100% happy, you wont be looking forward to tearing it down again. I'd suggest saving the money you'd spend on the minor head port and put it towards an aftermarket cam and better springs. You can make 400 rw cam only with the right set up and you wont have to pull your heads.

but its so much easier to do valve springs off the car, it doesnt take to long to take heads off

[badinfluence]

this will be a replacement engine more than a perf. build, it will be done on spare engine outside the car anyways

PCV system cant be that expensive at all

heads will be pretty much free, going to learn how to do basic porting and i have a friend who will help me

I understand an aftermarket cam will be the best in terms of ultimate horsepower but gas mileage and reliability are big factors, from what i've seen alot of cammed cars get not the best gas mileage so if i go LS6 components, i'm looking at $500 if i am patient and it will drive like stock but 400hp at the crank would be possible I would think

[DETROITMUSCLE]

waste of time and money IMO aftermarket is gonna be your best bet otherwise you'll probably not even notice much difference at all.

[JoeliusZ28]

but its so much easier to do valve springs off the car, it doesnt take to long to take heads off

im not sure i agree with that, i changed the springs on phenomics car, heads on, and it only took me maybe an hour and a half? Its just easy busy work, torquing the spring tool down twice for every valve with a socket wrench.

Adam... I gauarantee you wont be happy with the gains you get for all the work it would require to do this. A cam swap is a much more economical way to do it, especially if you dont mind some "personality" like you said in another thread.

[9T8W66]

Check this out http://www.crateenginedepot.com/stor...-P1625C63.aspx
Add an aftermarket cam/springs and you can have a decent setup for relatively cheap.

Otherwise I have to agree with the others a simple cam swap on a stock LS1 will show more power than a stock LS6.

[WMCCjames]

Aftermarket FTW! If you are on a budget, try and find a good used cam for sale.

[badinfluence]

maybe i was getting wrong information but isnt the LS6 rated at 405hp?

LS1 is "rated" at 300 (325 whatever the actual be) either way thats still a big difference

Dont get me wrong if I see a used aftermarket cam for sale that is priced reasonable I'd be interested but gas mileage, how much do you Cam ls1 guys get?

[JoeliusZ28]

dont confuse FWHP for RWHP. You can get over 400 RWHP with just a cam.

[9T8W66]

All LS1's make approx 345-350 FWHP
`01 LS6 was rated at 385 FWHP`02-up are 405 FWHP

A cam and headers along with the regular bolt-ons will put you above an LS6

[c0ncEpT]

maybe i was getting wrong information but isnt the LS6 rated at 405hp?

LS1 is "rated" at 300 (325 whatever the actual be) either way thats still a big difference

Dont get me wrong if I see a used aftermarket cam for sale that is priced reasonable I'd be interested but gas mileage, how much do you Cam ls1 guys get?

Like I said, When I only had a lid I lost to a camaro with an LS6 cam by maybe 3 cars up to like 110.
If I had a converter in the car I bet I could take that car the way my car sits right now.

[badinfluence]

Ok, you guys are starting to convince me!

But anyone here with a mild(?) aftermarket cam / bolt ons care to post up what kind of gas mileage they get?

Car is an A4 now, but I have a T56 I'm trying to get my hands on

[DETROITMUSCLE]

well with a cam in an Auto you at least want a 3200 converter for an LS1 and that will honestly drop you one or two mpg city and a cam will probably be another 1 or 2 depending on size. A lot of streetability and mpg can be improved with tuning though so make sure you get a tune.

[badinfluence]

i have an auto but by the time i do this it will most likely be going in with a T56

Thanks for all the help and dont mean to just ignore all the recommendations but i'm going to pick up a 02 LS6 Cam that i found for cheap along with a 98 LS1 long block and save up for a better rear end instead of a bigger cam

so in addition to those
Intake Manifold (ported 98 TB will work?)
PCV
Pushrods
Springs

is there anything else I need?

anyone know about how much it is to rebuild a shortblock (professionally at a shop)