PRC Aftermarket Casting 250cc LS3 Heads Shipping!
12-03-2011, 05:01 PM
#41
Well folks the results are in.. I ended up getting it dyno'd this morning and I am happy to say those heads where worth the money !!!! It picked up 54 more rwhp and 48 more ft pounds of tq..... It made 510.76hp and 475tq!!!!! That was unlocked.....the a/f was right around 12.5 and the tuner said everything was good and dead on ,so she is ready for drag radials and some spray for next year........
12-03-2011, 05:58 PM
#42
Staging Lane
iTrader: (3)
Join Date: Dec 2010
Location: Collinsville ,Illinois
Posts: 99
Likes: 0
Received 0 Likes
on
0 Posts
It's a ls3 base 418 with eagle rotating assembly that I bought from tsp with -10 cc pistons that are weisco and low tention rings. It has a custom pat g spec cam
With 239/247and .624/.624 on a 115lsa. The intake is a 102 fast and nick willams throttle body , it has 11.7-to 1 compression . But I know I need to upgrade header I have the 1-3/4 dynateck now , should see some nice gains
With them ( next year).The heads of corse are the new prc 250 which are awesome!!!!!! Don't know if I'm forgetting anything?
With 239/247and .624/.624 on a 115lsa. The intake is a 102 fast and nick willams throttle body , it has 11.7-to 1 compression . But I know I need to upgrade header I have the 1-3/4 dynateck now , should see some nice gains
With them ( next year).The heads of corse are the new prc 250 which are awesome!!!!!! Don't know if I'm forgetting anything?
12-04-2011, 07:36 AM
#48
Staging Lane
iTrader: (3)
Join Date: Dec 2010
Location: Collinsville ,Illinois
Posts: 99
Likes: 0
Received 0 Likes
on
0 Posts
He said standard what the industry all use but I'm sure he can because he showed me all three. As soon as weather permit I will get It done for you sir. Also the last run was with the converter locked and wasn't too thrilled with that so that's why I didn't say anything because I guess it doesnt mean anything at the track.....
12-04-2011, 08:36 AM
#49
I just noticed you said you have a 418LS3 with a 102 Fast, and you said the new numbers were 511/475, up 54/48 over the previous heads. So you were making ~457/427 on a 418LS3 through an automatic? Does the auto eat that much of the power or do you have a built driveline also?
12-04-2011, 10:45 AM
#50
Staging Lane
iTrader: (3)
Join Date: Dec 2010
Location: Collinsville ,Illinois
Posts: 99
Likes: 0
Received 0 Likes
on
0 Posts
That is correct and guess they do just not sure and sure alot of these guy know how much you can lose through a auto. The drive line is built for up to 650rwhp form what my engine installer said! That's what I paid anyway...
12-04-2011, 11:47 AM
#51
Teching In
Join Date: Jan 2007
Posts: 31
Likes: 0
Received 0 Likes
on
0 Posts
Wow, good build. Ya, just saw its thru a auto. So, if we use your 2nd pull and then kick it 5 percent for a manual it would be around 535 rwhp and 500 rwtq. That 418 LS 3 has been born again.
Thats is a big bang for your buck. I did see these heads at TSP when I was their getting a tune. Jason said he had been working on them for awhile and it took them alot longer to get what they wanted out of them. They did look good, really good.
Known the folks at TSP for quite some time, bunch of good folks for sure. Heck, they even ship Grayhound when needed............
Thats is a big bang for your buck. I did see these heads at TSP when I was their getting a tune. Jason said he had been working on them for awhile and it took them alot longer to get what they wanted out of them. They did look good, really good.
Known the folks at TSP for quite some time, bunch of good folks for sure. Heck, they even ship Grayhound when needed............
Last edited by Skypilot797; 12-04-2011 at 11:55 AM.
12-04-2011, 02:27 PM
#53
Teching In
Join Date: Jan 2007
Posts: 31
Likes: 0
Received 0 Likes
on
0 Posts
Ok Bigboy2, that perfect timing got my attention. Some of us are stuck with stuff that won't get a skunk drunk and their are locations in your great state that still sell some really drunk stuff.
So, what octane you using in that tank of yours???
So, what octane you using in that tank of yours???
12-04-2011, 03:23 PM
#54
Staging Lane
iTrader: (3)
Join Date: Dec 2010
Location: Collinsville ,Illinois
Posts: 99
Likes: 0
Received 0 Likes
on
0 Posts
I'm using 93 octane pump gas.. I was wanting to try some of the m12 oxygenated fuel to see what it will do... But Im looking for some more horsepower so im searching for maybe some 17/8 or 2" headers just not sure which one to go with but that will be for next year...
12-05-2011, 02:38 PM
#55
Wow, good build. Ya, just saw its thru a auto. So, if we use your 2nd pull and then kick it 5 percent for a manual it would be around 535 rwhp and 500 rwtq. That 418 LS 3 has been born again.
Thats is a big bang for your buck. I did see these heads at TSP when I was their getting a tune. Jason said he had been working on them for awhile and it took them alot longer to get what they wanted out of them. They did look good, really good.
Known the folks at TSP for quite some time, bunch of good folks for sure. Heck, they even ship Grayhound when needed............
Thats is a big bang for your buck. I did see these heads at TSP when I was their getting a tune. Jason said he had been working on them for awhile and it took them alot longer to get what they wanted out of them. They did look good, really good.
Known the folks at TSP for quite some time, bunch of good folks for sure. Heck, they even ship Grayhound when needed............
__________________
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
12-05-2011, 02:39 PM
#56
Awesome results, bigboy2! Let us know how she does at the track too!
__________________
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
12-06-2011, 09:27 AM
#60
TECH Fanatic
