1968 Firebird Conversion - Pan, Mounts, and Headers
Thread Starter
Teching In
Joined: Oct 2018
Posts: 8
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1968 Firebird Conversion - Pan, Mounts, and Headers Christmas came a little early and my Thompson Motorsports 408 arrived a few days ago. I'm dropping this into my 1968 Firebird. It has stock suspension and steering and will be connected to a TKO 600.
I've already purchased a Holley 302-3 oil pan. I'm now trying to settle on the correct motor mount swap plates and headers. I originally planned to use Kooks headers, but then I saw Texas Speed's headers. They're about 50% of the price of the Kooks. https://www.texas-speed.com/p-4273-t...e-headers.aspx. Anyone with experience with Texas Speed headers or the Kooks? Holley has a good option, but those are also a lot more expensive than Texas Speed. Also, I'm looking for advice on which ls conversion motor mounts I should use (with any of the foregoing headers) to get the optimal angle and to get clearance for the headers, pan, and steering/suspension? Dirty Dingo Double D's? Holley's mounts? Other options?
Thanks!
I've already purchased a Holley 302-3 oil pan. I'm now trying to settle on the correct motor mount swap plates and headers. I originally planned to use Kooks headers, but then I saw Texas Speed's headers. They're about 50% of the price of the Kooks. https://www.texas-speed.com/p-4273-t...e-headers.aspx. Anyone with experience with Texas Speed headers or the Kooks? Holley has a good option, but those are also a lot more expensive than Texas Speed. Also, I'm looking for advice on which ls conversion motor mounts I should use (with any of the foregoing headers) to get the optimal angle and to get clearance for the headers, pan, and steering/suspension? Dirty Dingo Double D's? Holley's mounts? Other options?
Thanks!
TECH Senior Member
Joined: Jun 2016
Posts: 22,291
Likes: 3,616
From: Central Cal.
+1 for Holley swap mounts. If the TSP headers will fit, go for them. Even if a little tweaking is involved. Otherwise, Holley all the way. The extra $$ spent will minimize headaches all around.
Holley Go with the Holley “system” you won’t regret it. Just helped a friend do a 67 Camaro LS3 and everything fit perfect. Mixing and matching can be a buzz kill when something doesn’t fit or has to be modified.
