Hello, this is my first post here, so be nice. Here in Anaheim, Ca. Redline Performance is building a crate LS1 to put 510hp to the crank. My question is what excactly do you need to do to acheive this hp? Granted they are building for an offroad application (sandrails), using straight headers, their eng managment system (Delphi) and custom air intakes. I know cam, headwork, valves and retainers are good, but what else. I am planning building an offroad truck that need min 500hp on pump gas, and the LS1 seems to be perfect for my application being all aluminum. Can you get good results with porting the stock heads? If I used lightweight rods and forged pistons, will this help alot or not worth the money. Motor will not need smog and will not be streetable. Thanks for the info, Joey

 

BTW, they are charging over $13,000.00 for their 510hp motor with the comp and headers. Thats it!!

 

OMG, just over 13k...Ill take two..no no no three. Just let me pull the money outa my...oh wait nvm, Im broke.

 

It can be done quite a bit less then that, right?

 

Yes, and with stock internals too.

 

So can it be done with stock ported heads, a new cam and springs? I guess you will need injectors also? Basically I am looking for info on how I can acheive at least 500hp on pump gas.

 

stock internals, stg 2 heads, 330/335ish cam with .600" lift, LS6 intake and a good tune and you should be right at 500hp i would say

 

A 347 w/11:1 c/r, AFR 205 heads, 240/620/114ish cam, and headers will make over 500 fwhp.

 

www.airflowresearch.com shows their 205 mongoose heads, $2200ish, cam (tsp- $380) lt's pacesetter $270 uncoated, ls6 intake $445 new, or 200 from junkyard or ebay. $3200 total pushing out 530hp. the mods they used are listed in the ls1 dyno graph. or go the sts turbo route, $4000. using everything stock making the hp you are looking for.

 

With a sts turbo or a blower it would idle and drive like stock at 1/4 throttle.....mash it and you would be sitting at over 500 with a good tune and low boost...now add a small turbo cam and woohoo....new rear end time and you should get some forged internals.

13K is silly...I think you can get an LS2 NEW and put a cam in it for a hell of a lot less than that. Better yet wait for a totaled 05 GTO...it wont take too long and buy the engine and trans for like 4K-5K, put a cam in it, drop it in and go.....all very close to new and cheaper.

Besides cam installs are cheper when the engine is out of the car

 

Umm... A t-rex on an M6 car with full boltons and a tune should be around 500 at the crank. Cam, springs, ti retainers, pushrods, and a timing chain would be really all you need. 7-800 bucks plus tune.

 

Not to mention... I believe the crate LS7 is going to be cheaper than 13,000. I would take that over any LS1 based anything.

 

This is what you should do, get the stock heads ported by Eric Bradby and valvetrain set up, comp r lifters, new pushrods, and roller rockers, arp heads studs, double roller chain,custom grind cam from Joe Overton, and tune, long tubes and you will be almost seeing 500 to the wheels trust me on this. Pm me if you want me to hook you up, I know these guys personally. You could spend under $5000!

BTW Joe had a car with his cam and Eric's head work with stock bottom end and went 10.29 at 130 and some more room. (car was alittle less weight than stock.

 

Here is a link to the rip-off prices:

http://www.redlineperformanceonline.com/ls1.htm

I never planned on buying one of their motors, I just know that the min hp I wanted was 500. I plan on buying a motor from a salvage yard then rebuilding for the project I am doing. Thanks for the replies, sound like it wont take much to get the 500hp

 

Depends on what you're getting for your $13K ... yeah we're all dropping our jaws. But then again all we have to do is the engine work - H/C, off the shelf exhaust and tuning ... do the labor yourself and 400-430 rwhp - you can decide what math you want to use to arrive at fwhp - can easily be done for under $5K.

In your case there's a lot more to it ... wiring harness, PCM, all the sensors, MAF, TB, mounting fabrication, 1 off custom headers etc, etc ... if the $13K includes labor and final tuning, it is probably not that unreasonable.