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PRC LS7 Small Bore Cylinder Heads Nears Production! 390cfm on a LS3 Bore!!

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Old 03-20-2011, 01:02 PM
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Street Warrior? And WTF does gif mean?
Old 03-20-2011, 03:29 PM
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Originally Posted by RENE'S RAGE
Street Warrior? And WTF does gif mean?
Weiand Street Warrior was a intake manifold that was susposed to callange the FAST and Weiand cold never produce a finished product. Internet rumors on the reason are floating out there. Try a SEARCH
Old 03-20-2011, 04:17 PM
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Originally Posted by Jimbo1367
Weiand Street Warrior was a intake manifold that was susposed to callange the FAST and Weiand cold never produce a finished product. Internet rumors on the reason are floating out there. Try a SEARCH
SEARCH for what?
If it'a not a race intake, I have no need for it.
WTF does gif mean?
Old 03-20-2011, 04:43 PM
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That Street Warrior Intake was supposed to be a competitor for the FAST, just cheaper..and it never came out..
https://ls1tech.com/forums/generatio...rior-sema.html

GIF is the computer generated video there that was posted.
Old 03-22-2011, 03:49 PM
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Thanks Ben.
Old 03-22-2011, 03:52 PM
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Originally Posted by Matt@Texas-Speed
That really is going to be where these heads shine (LS3 strokers), in my opinion! They're going to make great peak power on the stock stroke stuff, but like Jason said, the powerband is moved up enough that they really need to rev higher!
What intake and cam for these heads on a LS3/418.
Race only.
Old 03-23-2011, 04:19 PM
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Originally Posted by RENE'S RAGE
What intake and cam for these heads on a LS3/418.
Race only.
Can anyone from TSP tell me?
Old 03-24-2011, 06:36 PM
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Originally Posted by RENE'S RAGE
Can anyone from TSP tell me?
They'll chime in when they get a spare few minutes.
Old 03-24-2011, 08:16 PM
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im pretty sure they said the heads will take an LS7 intake, as for the cam that will allways depend on what you wanna do with the car.
Old 03-25-2011, 01:19 PM
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I was impressed by PRCs 265 LS7 head. wonder if they are tweaking that for a smaller (LS3) bore.
Old 03-25-2011, 09:24 PM
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Originally Posted by Jimbo1367
I was impressed by PRCs 265 LS7 head. wonder if they are tweaking that for a smaller (LS3) bore.
Absolutely, the first set are running a on Jason's 2010 camaro tonight at San Antonio raceway. They will need the LS7 intake and rockers.
Old 03-30-2011, 12:07 PM
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Originally Posted by TVWilkes
Absolutely, the first set are running a on Jason's 2010 camaro tonight at San Antonio raceway. They will need the LS7 intake and rockers.
I posted the results from San Antonio Raceway and the prototype heads/VVT cam here: 2010 Camaro LS7 Small-bore Heads VVT Cam Initial Results
Old 03-30-2011, 01:08 PM
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Dyno sheets
Old 03-30-2011, 01:38 PM
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I'll see if Jason will post the engine dyno sheets. The chassis dyno of this car doesn't have "just" the heads-only swap, it received the new heads, new cam, and a Yank converter for the races. There isn't a good way to compare A-B testing with the chassis dyno results.
Old 03-30-2011, 08:32 PM
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i'm not sure if I missed it but what size/type valves are being used in these heads? If they are stock ls7 intake, then how is shrouding on smaller bore (4.065). I am looking to build a 416/418 using Ls7 crank and rods with custom lightweight pistons and am researching heads for this setup. It is going in an RX7 which only weighs 2800lbs and prefer heads and intake that make power mid to up top. Hoping to be able to turn 7k. want a light weight rotating assembly and valvetrain. Looks like this might be a good option with the LS7 intake to meet those criteria. Any other good options for a stroked ls3? Has pricing been released yet.
Old 04-02-2011, 08:13 AM
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So what's the story on these?? I read something that they were put on a new camaro and set an NA record, But haven't heard when they might hit the shelves or how much.
Old 04-06-2011, 11:14 PM
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When they come out (both included), someone needs to throw these and the trick flows on the same motor. Looks like these outflow the TF's...at 300.
Old 04-06-2011, 11:47 PM
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Originally Posted by TwoValveKid
When they come out (both included), someone needs to throw these and the trick flows on the same motor. Looks like these outflow the TF's...at 300.
i dunno if youre going to fit 4 heads on one motor
Old 04-07-2011, 08:02 AM
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Originally Posted by Wnts2Go10O
i dunno if youre going to fit 4 heads on one motor
Why not? Double the power right?
Old 04-10-2011, 05:05 PM
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TTT. Don't keep "US" waiting.


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