Author Topic: FLOWMASTER 2 1/2 ' KIT ON TO STOCK EXHAUST MANIFOLDS  (Read 2198 times)

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Mach S Code

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FLOWMASTER 2 1/2 ' KIT ON TO STOCK EXHAUST MANIFOLDS
« on: February 18, 2016, 03:20:12 PM »
Hello everyone, I was going to install my Hooker Supercomp Headers on my '69 s code Mach 1 but due to ground clearance problems I am forced to stick with the " pretty good" GT manifolds. My question is : does anyone know where to get a reducer pipe from 2 1/2" to 2" or is there a supplier that makes a flanged exhaust pipe that will bolt directly to the manifold then to a 2 1/2" pipe?. I know this probably is  a strange request but I am hoping it will not be too hard to find. Any help is appreciated, Thanks, Bill

jayb

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Re: FLOWMASTER 2 1/2 ' KIT ON TO STOCK EXHAUST MANIFOLDS
« Reply #1 on: February 18, 2016, 07:11:10 PM »
You can get 2" to 2-1/2" adapters from Summit Racing:

http://www.summitracing.com/parts/wlk-41958/overview/

Your "pretty good" 390 GT exhaust manifolds actually are pretty bad, not a lot better than a log manifold.  Try a set of FPA headers; they give a ton more ground clearance than the Hookers, and you won't be stuck with those anemic 390 GT exhaust manifolds.
Jay Brown
- 1969 Mach 1, Drag Week 2005 Winner NA/BB, 511" FE (10.60s @ 129); Drag Week 2007 Runner-Up PA/BB, 490" Supercharged FE (9.35 @ 151)
- 1964 Ford Galaxie, Drag Week 2009 Winner Modified NA (9.50s @ 143), 585" SOHC
- 1969 Shelby Clone, Drag Week 2015 Winner Modified NA (Average 8.98 @ 149), 585" SOHC