stock 243s increase?
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From: NA,Indiana/louisville, ky
stock 243s increase? i tried searching could find what i wanted. currently i have a 224/230 cam, auto car, a couple bolt ons. car made 380rwhp. does anyone know what type of gains im looking at on a 243 stock heads?
Thread Starter
TECH Fanatic
iTrader: (28)
Joined: Nov 2006
Posts: 1,757
Likes: 4
From: NA,Indiana/louisville, ky
nice, i was looking for an extra 10 hp. so if i can get lucky and almost hit 15 to 20, thats even better. man my gf yells at me on me modding my car. if that wasnt the case, id buy the ported heads that i really want lol.
Might have been me. I picked up 27rwhp/10rwtq. That's through a 12 bolt w/4.11s and a M6, but it had the same drivetrain before the swap (same tune and everything else too). The real nice part the dyno doesn't show is the ~4mph increase I saw in the quarter. My results are not typical, lol. I have another set I have been meaning to send off to Advanced Induction for their killer port work but I have to say the stock LS6 heads work great. Still have me grinning even after 3 years. In fact I am putting an almost identical motor into my 96 WS6, but with a LS6 intake (instead of FAST) for boost.
Very long story short, 15rw sounds right for an auto.
Very long story short, 15rw sounds right for an auto.
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Might have been me. I picked up 27rwhp/10rwtq. That's through a 12 bolt w/4.11s and a M6, but it had the same drivetrain before the swap (same tune and everything else too). The real nice part the dyno doesn't show is the ~4mph increase I saw in the quarter. My results are not typical, lol. I have another set I have been meaning to send off to Advanced Induction for their killer port work but I have to say the stock LS6 heads work great. Still have me grinning even after 3 years. In fact I am putting an almost identical motor into my 96 WS6, but with a LS6 intake (instead of FAST) for boost.
Very long story short, 15rw sounds right for an auto.
Very long story short, 15rw sounds right for an auto.
AI's work is top notch and the best route you can go if you decide to get them worked over. LS1 Tech Stories
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If you are going to put the effort into changing the heads, retune, etc., you might consider milling as well to bump your compression up further. That is free power since you shouldn't have PTV concerns with that cam.
the $750 is making a 243 the equivalent of our stg 1.0 LS6, if you add the valves it takes it to the equivalent of a stg 2.5. It basically saves you the casting cost, so if around 300 bucks is worth it to you I would jump on it.
If you are going to port your heads go with Advanced Induction. great people who know what they are doing. in this dyno section a guy sent them out to AI and after those heads boosted him 49rwhp/32rwtq!
Here is the link
https://ls1tech.com/forums/dynamomet...nths-5mph.html
Here is the link
https://ls1tech.com/forums/dynamomet...nths-5mph.html