C3 LS swap headers
Thread Starter
Advanced
Joined: May 2019
Posts: 66
Likes: 11
From: Kalmar, Sweden
C3 LS swap headers
Can anyone confirm that F-body 1998-2002 headers fit a C3 with a LS? I’ve read on different forums that they will but never got it confirmed nor have I seen any pictures.
This was C3’s with steeroids rack.
This was C3’s with steeroids rack.
Safety Car
Joined: Nov 2005
Posts: 3,961
Likes: 573
From: Lompoc, CA. Santa Barbara County
I bought flea bay 2015 Camaro short headers for my conversion. It cleared everything, including my steering box, but not my 700R4 bell housing. I had to trim about an inch. Also the Camaro headers come very close to the firewall, but hasn’t been an issue. I’m thinking about trying C5 headers.
Last edited by Bee Jay; Apr 12, 2020 at 11:53 PM.
Melting Slicks
Joined: Sep 2010
Posts: 3,281
Likes: 687
I have Speed Engineering headers on my 68 C10 LS swap. Stainless 1 3/4" long tubes. They make mid-length also.
They fit well. They don't leak. Bought Fel Pro header gaskets. Good spark plug clearance. The bottom of the collector is even with bottom of the transmission. The stainless is pretty light. Cylinder head flange is 3/8" thick.
This will be the third summer for them and they look to be holding up well. I think they were $269 shipped.
I hate buying China made stuff but I just couldn't justify a $800-$1200 US made set.
The way they fit my C10 I bet they would fit a C3.I don't know their return policy but it might be worth a try.
They fit well. They don't leak. Bought Fel Pro header gaskets. Good spark plug clearance. The bottom of the collector is even with bottom of the transmission. The stainless is pretty light. Cylinder head flange is 3/8" thick.
This will be the third summer for them and they look to be holding up well. I think they were $269 shipped.
I hate buying China made stuff but I just couldn't justify a $800-$1200 US made set.
The way they fit my C10 I bet they would fit a C3.I don't know their return policy but it might be worth a try.
Cruising
Joined: Oct 2019
Posts: 13
Likes: 1
Drifting
Joined: Aug 2004
Posts: 1,883
Likes: 124
From: Lubbock TX
BeeJay, I have a set of C5 headers, they pinch right behind the engine since there's no transmission in the way, I think they'd take a good bit of fab work.
If you manage to get 'em to work, I'll be following along since I have an LS6 to put into her '78.
If you manage to get 'em to work, I'll be following along since I have an LS6 to put into her '78.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski