D1sc procharged ls1
are the 243 head ls6 heads? I'm trying to find a set somewhere and that's all I keep coming up with. Sorry I'm new to this whole building a ls engine thing. I found some prc stage 1 ported CNc ls6 heads but I didn't know if those were a good choice or not or if it would be cheaper to find some stock 243s
I would look around for these heads and see what you find. 243, 799, 317, or 241 would be my first choices if your staying with a GM head.
Thread Starter
Teching In
Joined: Apr 2014
Posts: 13
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Yes the 243 heads came on the Ls6 motors. GM made a lot of different castings of the LS head. The 799 heads are the new GM replacement for the 243's, if you can find some local to you. PRC uses a GM casting and then CNC ports the intake and exhaust runners as well as a valve job to increase the valve size. The big thing you want is to know what size combustion chamber of the heads your buying so you can then choose a piston to put your engine in the compression ratio you want. If your going to buy a set of used PRC or any used heads for that matter find out if the combustion chamber has been milled down to bump the compression on a N/A engine. You want the decks of the heads as thick as possible in a boosted application.
I would look around for these heads and see what you find. 243, 799, 317, or 241 would be my first choices if your staying with a GM head.
I would look around for these heads and see what you find. 243, 799, 317, or 241 would be my first choices if your staying with a GM head.
Thread Starter
Teching In
Joined: Apr 2014
Posts: 13
Likes: 0
primarily the car will be used for the street hardly ever going to the track and if it does maybe once or twice a year, I plan to have the car tuned on 93 octane pump gas due to the lack of e85 where I live.
Get whatever head your going to run and then pick out some pistons. Wiseco or Diamond are always a sure choice for brand. You can pick the dish once you know what CC combustion chamber the heads are. I would shoot for 10:1-10.5:1 compression range and run a LS9 head gasket. I would also recommend looking into a Meth injection kit as well.
The big thing you want is to know what size combustion chamber of the heads your buying so you can then choose a piston to put your engine in the compression ratio you want. If your going to buy a set of used PRC or any used heads for that matter find out if the combustion chamber has been milled down to bump the compression on a N/A engine. You want the decks of the heads as thick as possible in a boosted application.
I spoke briefly to a tuner who does tons of boosted LS motors and he felt fine about installing the blower and meth kit, cranking the boost to 10-12 and figured ~650 hp would be no problem. I have no experience with blowers myself so just trying to figure the plan out. Very curious.
From reading a lot of posts I've seen this quote is the consensus when it comes to boosted motors and I'm searching for why that is but not finding anything. Now I'm not trying to be defiant, just genuinely curious, but in my case what would I be losing out on by throwing a blower on a forged 346 built for n/a? Is it just some max hp/tq? Efficiency? Reliability? Will it just run like total ****?
I spoke briefly to a tuner who does tons of boosted LS motors and he felt fine about installing the blower and meth kit, cranking the boost to 10-12 and figured ~650 hp would be no problem. I have no experience with blowers myself so just trying to figure the plan out. Very curious.
I spoke briefly to a tuner who does tons of boosted LS motors and he felt fine about installing the blower and meth kit, cranking the boost to 10-12 and figured ~650 hp would be no problem. I have no experience with blowers myself so just trying to figure the plan out. Very curious.
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your setup that you are looking for is very close to mine
stock bottom end ls1
comp 224/224 cam
porter TEA 241 heads
stock ls6 intake
stock throttle body
F1a PROCHARGER
fmic
80#injectors
slp maf
twin 340 pumps
hooker blackheart 1-7/8" mid length headers and full blackheart exhaust
car made 614/540 on 10psi with the black heart setup
made 630/530 with a long tube header and home made true duals but ground clearance sucked (lowered on bmr springs)
my maf is maxed so im leaving some ponies on the table but for a street car it has great power everywhere and no loss in drive ability.
Bob's blower cam makes awesome power and he has always been very helpful when I had questions, he can get you hooked up with all the parts you need.
If you have questions or want to see video of the car just let me know.
stock bottom end ls1
comp 224/224 cam
porter TEA 241 heads
stock ls6 intake
stock throttle body
F1a PROCHARGER
fmic
80#injectors
slp maf
twin 340 pumps
hooker blackheart 1-7/8" mid length headers and full blackheart exhaust
car made 614/540 on 10psi with the black heart setup
made 630/530 with a long tube header and home made true duals but ground clearance sucked (lowered on bmr springs)
my maf is maxed so im leaving some ponies on the table but for a street car it has great power everywhere and no loss in drive ability.
Bob's blower cam makes awesome power and he has always been very helpful when I had questions, he can get you hooked up with all the parts you need.
If you have questions or want to see video of the car just let me know.
I wouldn't bother swapping heads for that power level and boost. Run a decent cam and itll make the number without heads. Valvesprings are a must but if youre doing a cam anyways then its not an issue.
your setup that you are looking for is very close to mine
stock bottom end ls1
comp 224/224 cam
porter TEA 241 heads
stock ls6 intake
stock throttle body
F1a PROCHARGER
fmic
80#injectors
slp maf
twin 340 pumps
hooker blackheart 1-7/8" mid length headers and full blackheart exhaust
car made 614/540 on 10psi with the black heart setup
made 630/530 with a long tube header and home made true duals but ground clearance sucked (lowered on bmr springs)
my maf is maxed so im leaving some ponies on the table but for a street car it has great power everywhere and no loss in drive ability.
Bob's blower cam makes awesome power and he has always been very helpful when I had questions, he can get you hooked up with all the parts you need.
If you have questions or want to see video of the car just let me know.
stock bottom end ls1
comp 224/224 cam
porter TEA 241 heads
stock ls6 intake
stock throttle body
F1a PROCHARGER
fmic
80#injectors
slp maf
twin 340 pumps
hooker blackheart 1-7/8" mid length headers and full blackheart exhaust
car made 614/540 on 10psi with the black heart setup
made 630/530 with a long tube header and home made true duals but ground clearance sucked (lowered on bmr springs)
my maf is maxed so im leaving some ponies on the table but for a street car it has great power everywhere and no loss in drive ability.
Bob's blower cam makes awesome power and he has always been very helpful when I had questions, he can get you hooked up with all the parts you need.
If you have questions or want to see video of the car just let me know.
__________________
ATI ProCharger and Moser Sales 260 672-2076
PM's disabled, please e-mail me
E-mail: brutespeed@gmail.comob@brutespeed.com
https://brutespeed.com/ Link to website
ATI ProCharger and Moser Sales 260 672-2076
PM's disabled, please e-mail me
E-mail: brutespeed@gmail.comob@brutespeed.com
https://brutespeed.com/ Link to website