2004 GTO 243 Heads and....
Thread Starter
Staging Lane
Joined: May 2012
Posts: 55
Likes: 0
From: Cape Coral, FL
2004 GTO 243 Heads and.... I was thinking of going for this but wanted to check with the experience guys before taking the jump on this. First, is this a good deal (price wise) and 2nd, you all think is worth the HP bump and if so how much do you think I will get on HP bump from this with a mild cam and tune? BTW the listed price is $750 including shipping. Also, whats a good mild cam for this setup? I daily drive the car and take it to the track maybe twice a year. I just want to have some fun while still keeping the normal driving feel of car (because of the daily drive it part 
). I usually race...when I race it from 1st or 2nd and usually is maybe up to 90. So what ever works for that setup would be great. I did searched the forums but it was hard to find something similar to mine with all the different post related to heads and cams (they are all over the place)
Current mods:
JBA shorty headers,jba mids(cat) and spintech mufflers. LS7 Clutch and flywheel. 100 wet shot of nitrous but I dont really use it...just as a backup.
HEADS INFO BELOW
This are the notes from seller:
==============================
GM LS6 CYLINDER HEADS CASTING #243 ONLY REBUILT
STOCK HEADS.
THIS SALE IS FOR CASTING NUMBER ENDING IN 243 ONLY
CATHEDRAL INTAKE PORTS
VALVE SIZES intake 2.000 ex 1.552
CYLINDERHEAD thoroughly cleans, inspects, and pressure tests all our cylinder heads. All seat and guide work is performed as needed on the latest state of the art Serdi or Sunnen seat and guide machine. The head then moves on to a Rottlier CBN resurfacing machine where it is cut to the required RMA finish. We then install a quality valve seal and pull a vacuum on each valve to insure their is a perfect seal between the valve and the seat. All machine is work performed on the latest state of the art equipment
). I usually race...when I race it from 1st or 2nd and usually is maybe up to 90. So what ever works for that setup would be great. I did searched the forums but it was hard to find something similar to mine with all the different post related to heads and cams (they are all over the place) Current mods:
JBA shorty headers,jba mids(cat) and spintech mufflers. LS7 Clutch and flywheel. 100 wet shot of nitrous but I dont really use it...just as a backup.
HEADS INFO BELOW
This are the notes from seller:
==============================
GM LS6 CYLINDER HEADS CASTING #243 ONLY REBUILT
STOCK HEADS.
THIS SALE IS FOR CASTING NUMBER ENDING IN 243 ONLY
CATHEDRAL INTAKE PORTS
VALVE SIZES intake 2.000 ex 1.552
CYLINDERHEAD thoroughly cleans, inspects, and pressure tests all our cylinder heads. All seat and guide work is performed as needed on the latest state of the art Serdi or Sunnen seat and guide machine. The head then moves on to a Rottlier CBN resurfacing machine where it is cut to the required RMA finish. We then install a quality valve seal and pull a vacuum on each valve to insure their is a perfect seal between the valve and the seat. All machine is work performed on the latest state of the art equipment
$750 for stock 243s? That's $750 plus head gaskets, head bolts, fluids, and labor for about 15rwhp over your current heads.
I'm not a fan of bolting on stock heads unless you get them stupid cheap and/or already have to pull your heads for some other reason. Even still you could get some 243s or 799s on here for $300-400.
I'm not a fan of bolting on stock heads unless you get them stupid cheap and/or already have to pull your heads for some other reason. Even still you could get some 243s or 799s on here for $300-400.
