600 rwhp 402 anyone have a good idea for a good h/c combo?
03-02-2013, 07:10 PM
#1
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600 rwhp 402 anyone have a good idea for a good h/c combo? hey guys im goin for 600 rwhp out of a 402 on pump gas. anyone have a good combo that will achieve that? i was going to try afr 225 heads with a thunderracing stroker cam 248/254 - .615/.623 - 112 lsa. also fast 102mm intake and throttle body as well. what ya guys think? if anyone has a combo that makes this please pm me if youd be so king 
. im also runnin a 150 shot of nitrous but id like to get 600 without the bottle lol. any opinions would help.
thx guys,
Tom
. im also runnin a 150 shot of nitrous but id like to get 600 without the bottle lol. any opinions would help.thx guys,
Tom
03-02-2013, 09:24 PM
#6
Even for a 416 600rwhp takes compression big cams and expensive parts.
I really dont think people realize what 600rwhp really takes and the money that gets spent. The motor alone is over the 10k mark now add in a 1000 $ clutch to handle it, $$$ for tranny and rear upgrades. Youre EASILY over 15k for the package and thats on the low end assuming you can do some work.
I really dont think people realize what 600rwhp really takes and the money that gets spent. The motor alone is over the 10k mark now add in a 1000 $ clutch to handle it, $$$ for tranny and rear upgrades. Youre EASILY over 15k for the package and thats on the low end assuming you can do some work.
03-02-2013, 09:47 PM
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Even for a 416 600rwhp takes compression big cams and expensive parts.
I really dont think people realize what 600rwhp really takes and the money that gets spent. The motor alone is over the 10k mark now add in a 1000 $ clutch to handle it, $$$ for tranny and rear upgrades. Youre EASILY over 15k for the package and thats on the low end assuming you can do some work.
I really dont think people realize what 600rwhp really takes and the money that gets spent. The motor alone is over the 10k mark now add in a 1000 $ clutch to handle it, $$$ for tranny and rear upgrades. Youre EASILY over 15k for the package and thats on the low end assuming you can do some work.
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03-02-2013, 10:42 PM
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Here is a 450cid with nasty cam, heavily massaged all-pro heads, and full flow 3" exhaust. The goal on this build is 600 rwhp on 91 pump gas.
https://ls1tech.com/forums/generatio...s-install.html
Last edited by TheCapo; 03-02-2013 at 10:54 PM.
03-02-2013, 11:05 PM
#12
550rwhp is a stretch as well. 515-520rwhp is a well performing 402 on pump from what I've seen on the majority side of the discussion. There are a few above average performers out there but with the parts OP is debating on using he will not be an above average performer IMO.
03-02-2013, 11:11 PM
#14
550rwhp is a stretch as well. 515-520rwhp is a well performing 402 on pump from what I've seen on the majority side of the discussion. There are a few above average performers out there but with the parts OP is debating on using he will not be an above average performer IMO.
Sorry OP I was being selfish thinking about my own car
03-02-2013, 11:22 PM
#16
550rwhp is a stretch as well. 515-520rwhp is a well performing 402 on pump from what I've seen on the majority side of the discussion. There are a few above average performers out there but with the parts OP is debating on using he will not be an above average performer IMO.
OP- get yourself a 427 or bigger for your goal. Plus your love the tq with the 427 over the 402. I have the setup your wanting with a custom cam and im no where near 600
03-03-2013, 08:28 AM
#19
You can look at my build.
408
Small bore ls3 heads
Custom cam
11:5:1cr
True duals
4" intake tract
Full supporting mods
And you see im hoping for 525whp+ pat g thinks 525 should be a breeze and I can hope for more but ive got some high end parts.
408
Small bore ls3 heads
Custom cam
11:5:1cr
True duals
4" intake tract
Full supporting mods
And you see im hoping for 525whp+ pat g thinks 525 should be a breeze and I can hope for more but ive got some high end parts.
03-03-2013, 10:28 PM
#20
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You can look at all the specifics in my signature block for 550 plus at the tire. I had 250cc intake runners on the heads with 2.1" valves. I considered what it would take for 600 at the tire and my feeling is bigger 275cc plus ports, 2.160 plus intake valves, a very large camshaft, big exhaust and a big, big intake. Oh, and my numbers were on 93 octane.
My drivetrain loss was a quite accurate 14 percent as measured on the stock GTO.
Figure the NASCAR guys make 800 plus on 358 CI, so do what they do. Most of their work is on their 400 plus CFM heads, and they do wind the engines up over 8,000 RPM.
My drivetrain loss was a quite accurate 14 percent as measured on the stock GTO.
Figure the NASCAR guys make 800 plus on 358 CI, so do what they do. Most of their work is on their 400 plus CFM heads, and they do wind the engines up over 8,000 RPM.
Last edited by Gregory; 03-03-2013 at 10:38 PM.