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  Mustangsandmore Forum Archive
  '64 1/2 to '68 1/2 -- The Classic Mustang
  66 A-Code choke hook-up

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Author Topic:   66 A-Code choke hook-up
Vince
Journeyman

Posts: 2
From:
Registered: Feb 2006

posted 02-01-2006 12:31 AM     Click Here to See the Profile for Vince        Reply w/Quote
Does anyone know if the exhaust manifolds on a 66 Mustang with the A-Code engine should be the standard type or the hipo type used on the K-Code engines? I read in a Mustang book that on 66 Mustangs the exhaust system on the A-Code was the same as the K-Code. Is this correct?

My problem is I have a 66 with the A-Code engine which has the stock Autolite 4100 4V carb with an automatic choke, but the heat tube that should connect from the choke to the exhaust manifold is missing, and there doesn't seem to be any place to attach it on the hipo exhaust manifolds.

Do I have the wrong exhaust manifolds?

Thanks for any help.

Scott H
Gearhead

Posts: 1480
From: Chicago area
Registered: Mar 2005

posted 02-01-2006 12:57 AM     Click Here to See the Profile for Scott H        Reply w/Quote
Welcome to M&M!

you have the wrong manifolds.
HiPo's came with manual choke, so they don't need a provision on the exhaust manifold for the heat tube.

A-code's came with standard manifolds and automatic choke.

You could coil a metal tube around your current manifold and it would probably pick up enough heat, and combined with a heater hose held against the side of the choke thermostat you should be fine. I would also set the choke somewhat loose so it opens easier and faster. Most of these cars aren't driven in cold weather, so a choke isn't as critical as when the cars were new. Last summer I loosened up my choke so it didn't close at all, and I only had to feather the trottle for a couple minutes before it ran fine. Besides, its good to let the oil warm up and circulate before driving off.

Your other option would be to use an electric choke from a mid-70's 302-2 barrel.

Vince
Journeyman

Posts: 2
From:
Registered: Feb 2006

posted 02-01-2006 01:17 AM     Click Here to See the Profile for Vince        Reply w/Quote
Thanks!

The Mustang book I read must be refering to the exhuast system AFTER the exhaust manifold.

Scott H
Gearhead

Posts: 1480
From: Chicago area
Registered: Mar 2005

posted 02-01-2006 06:28 AM     Click Here to See the Profile for Scott H        Reply w/Quote
or more correctly, after the H-pipe!

BornInAFord
Gearhead

Posts: 610
From: Bend, OR, USA
Registered: Dec 2002

posted 02-01-2006 04:02 PM     Click Here to See the Profile for BornInAFord        Reply w/Quote
Like Scott H said, you can make your own tubes. This is what I've done with my 66 with exhaust heated choke and Hipo manifolds. I have it passing from the carb (rubber hose for the first 6"), connected to 2' of copper tube that's wrapped around the manifold, then swedge connected to the short copper tube that attaches to the choke housing. I also wrapped the lower tube with insulation to keep the heat in. YOu can buy connections at NAPA or other parts stores. I do drive mine during the winter sometimes, so it is nice to have a choke when it's 10F. BTW, a block heater helps to keep my underhood temps up, too.

Daniel

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