1985 Header Question

Reply Subscribe

Thread Tools

Search this Thread

May 31, 2006 | 08:57 AM

reidry

Thread Starter

Burning Brakes

Joined: Apr 2003

Posts: 1,071

Likes: 2

1985 Header Question

If I buy headers that fit the stock iron heads on my '85 and later decide to do the swap to '113' heads or AFRs, cam, superram, etc. will the headers still fit?

Ryan

May 31, 2006 | 09:40 AM

anesthes

Safety Car

Joined: May 2006

Posts: 4,290

Likes: 140

From: Salem NH

Quote:

Originally Posted by reidry

If I buy headers that fit the stock iron heads on my '85 and later decide to do the swap to '113' heads or AFRs, cam, superram, etc. will the headers still fit?

Ryan

Yes but the ports are a little different. You might want to open the ports on the header up a hair, depending on the size of the port. Probably also want to use like a felpro1404 gasket to ensure good sealing.

-- Joe

May 31, 2006 | 10:46 AM

jan-erik

Pro

Joined: Mar 1999

Posts: 678

Likes: 0

From: Oslo, Norway

Hi.
I have an 85 4+3. I bought TPIS headers with emission tubes on. They fit very well but I cannot see any necessity tp open up ports on the headers. The headers have 13/4" primary tubes and you can use all the stock accessories as before . Changing plugs is just very simple with the 113 or the AFR L98 heads. I have the stock iron heads and changing of the plugs are even easy there. You need not take off the starter. Good luck. Do buy coated ones as they keep the engine room temp down!

May 31, 2006 | 11:16 AM

CFI-EFI

Race Director

Joined: Sep 2000

Posts: 17,298

Likes: 33

From: The Top of Utah

The headers will fit. Most headers fit the L98, C4s, without year restrictions. Where there is one it is due to the EGR hook up rather than the port size or shape.

RACE ON!!!

May 31, 2006 | 11:21 AM

reidry

Thread Starter

Burning Brakes

Joined: Apr 2003

Posts: 1,071

Likes: 2

One more question. Will all headers fit with the stock supersized starter? Do some fit and some not? Do all necessitate a smaller geared starter?

Ryan

May 31, 2006 | 11:30 AM

vader86

Team Owner

Joined: Sep 2001

Posts: 62,180

Likes: 1,740

From: Athens AL

C7 of the Year - Unmodified Finalist 2021

C4 of Year Finalist (performance mods) 2019

My 86E is the same as the 85, so TPIS headers will fit for sure, its a tight fit around a couple plugs so you will need a few plug wire boots.

Though both Hooker and TPiS fit over the behemoth starter, you would be SMART to go ahead and change that to the 88-91 starter which is about half the size and weight. Otherwise you will have to remove that header to get off the OE starter should it go out.

my website has tips on installation