what to do next?
Thread Starter
Instructor
Joined: Mar 2011
Posts: 163
Likes: 1
From: Wichita Kansas
So I finally pulled the string and bought a pair of 2004 z06 243 heads for my mostly stock 2001 ls1 convertible. It has a dual cone intake with fresh air supplied through the fog light grills, or lack thereof, and a corsa catback system with x-pipe. I plan on having the virgin heads, 25,000 miles I am told, ported just enough to unshroud the valves, then MAYBE installing long-tube headers. I will also put in a new cam with specs similar to a 2002-2004 z06. I want to keep my stock intake manifold since it is an ls6 but feel I need to upgrade the throttle body/MAF sensor to take advantage of the other upgrades. I want a 420-450hp motor out of it when I'm done.
Question one) Do I really need new headers? With the funds and equipment at my disposal this would probably be the hardest upgrade for me to do and I don't want to hear anymore exhaust noise than I already have. My corsa catback is perfect.
Question 2) Is the ls1 to ls2 TB conversion the only way to go? If so, what do I need beside the TB, adapter plate, and harness kit?
I know i'll need to have a professional tune when i'm done and other valve train components will be replaced as needed.
Help? Comments?
Sent from my SCH-I415 using IB AutoGroup
Question one) Do I really need new headers? With the funds and equipment at my disposal this would probably be the hardest upgrade for me to do and I don't want to hear anymore exhaust noise than I already have. My corsa catback is perfect.
Question 2) Is the ls1 to ls2 TB conversion the only way to go? If so, what do I need beside the TB, adapter plate, and harness kit?
I know i'll need to have a professional tune when i'm done and other valve train components will be replaced as needed.
Help? Comments?
Sent from my SCH-I415 using IB AutoGroup
Last edited by erufle; Mar 16, 2014 at 01:42 AM.
Le Mans Master
Joined: Jun 2008
Posts: 5,284
Likes: 235
From: Rockledge FL
You dont need to touch the MAF for a 450hp motor. With a LS6 type manifold you dont need a LS2 throttle body either. My 00 with heads cam and the lowly FAST 78 with stock throttle body and MAF dynoed at 450rwhp.
your intke side is fine. Id do the heads, cam, and LT's. Best way to make power
Thread Starter
Instructor
Joined: Mar 2011
Posts: 163
Likes: 1
From: Wichita Kansas
This is Helpful!
Your list is great! I tend to put every little thing I see on mine and it has become ridiculously long. I think I will use yours as a template and decide on the rest after the house is paid off
