LS1 400-450hp. Whats needed
Josh
450rwhp will need decent heads
so which do you want?
solid recipe for 450rwhp is something like the TSP torquer 2, or the Futral F14 cam, and some milled stg 2.5 5.3L heads from TSP.
get the compression up to build torque and power.
throw a ported FAST intake on top of it and you'll make your goal with little doubt.
450rwhp will need decent heads
so which do you want?
solid recipe for 450rwhp is something like the TSP torquer 2, or the Futral F14 cam, and some milled stg 2.5 5.3L heads from TSP.
get the compression up to build torque and power.
throw a ported FAST intake on top of it and you'll make your goal with little doubt.
but theres a ton of H/C that can go there...some recipe are more proven though..
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the stocker is horrible in comparison. on a h/c engine you could lose 15+hp through the stock ls1 intake.
to keep price down you're best bet is budget heads, but you'll probably need a bigger cam to make up the difference.
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There are SO many factors its not even funny.
You want custom cam or off the shelf grind? You want shitty headers or top of the line? That right there can be a 1000 difference.
Are you doing your own mods?
Heads/Cam/Boltons/Dyno tune.
For heads your looking at anywhere from 1200-3000
Cam you could go with a custom comp with springs retainers and pushrods for as low as 600. Or you can go with FTI and spend 950.
Headers you can go with shitty 400 dollar headers or 1200 dollar headers. Hi flow cats is gonna set you back.
Intake another 150-250.
Catback anywhere from 300-600.
Labor- Camswap anywhere from 450-700. Headswap at a later date your looking at anywhere from 400-800 depending on how much they have been decked. Hell you might need new pushrods when swapping heads (I did).
All the mods you wanna do if you got them for dirt cheap and did your own labor.
I had a performance shop do my head swap and cam swap plus dyno tune.
I've put 5 grand into my car and make 435RWHP on an LS2 GTO. Of course if you do all your own labor it will be cheaper. But its still gonna be over 3 grand.
There are SO many factors its not even funny.
You want custom cam or off the shelf grind? You want shitty headers or top of the line? That right there can be a 1000 difference.
Are you doing your own mods?
Heads/Cam/Boltons/Dyno tune.
For heads your looking at anywhere from 1200-3000
Cam you could go with a custom comp with springs retainers and pushrods for as low as 600. Or you can go with FTI and spend 950.
Headers you can go with shitty 400 dollar headers or 1200 dollar headers. Hi flow cats is gonna set you back.
Intake another 150-250.
Catback anywhere from 300-600.
Labor- Camswap anywhere from 450-700. Headswap at a later date your looking at anywhere from 400-800 depending on how much they have been decked. Hell you might need new pushrods when swapping heads (I did).
All the mods you wanna do if you got them for dirt cheap and did your own labor.
I had a performance shop do my head swap and cam swap plus dyno tune.
I've put 5 grand into my car and make 435RWHP on an LS2 GTO. Of course if you do all your own labor it will be cheaper. But its still gonna be over 3 grand.
I am building a classic truck so i won't have any cats, i have already built one of the headers and hopefully starting the other header tomorrow. My father is going to do all the motor work so that save me a little money. I am just trying to do my homework so i get a nice setup. Thanks for the help and info! Here is a pic just for the hell of it of my header i built. 1 3/4 primaries to 2 1/2 collector, 32" long primaries, equal length primaries and it all tucks into my frame.









