fury fan
Senior Member
If you have a lift and a weekend, and some skills/patience, it can be done at a decent savings.
PLUS - you can make sure it all fits high and tight, the way YOU want, not the way some disinterested guy decides to do it.
Blocks of wood and under-hoist prop-supports are a huge help. Insert the wood between pipe and car, mash it up, and make pipes meet.
A single prop with a car-width 2x4 can hold both pipes from 1 location.
Some things you tack-weld on teh floor, some things you weld in as you go.
You install the tailpipes first, then everything else is Promontory Point.
Plan 2-3 steps (and cuts) ahead.
BUT - don't do it unless you have another car to drive to the parts store, or to drive to work on Monday while you await more pipes/bends from Summit!
I've done the last 5 cars myself at a buddy's on his lift. 68 Fury, 70 300, 65 300, 2 Lincoln Mark 7 LSCs (5.0 HO engine) and a 88 Dippy copcar.
#1 was Summit X-pipe with TTI tails.
#2 was Summit X-pipe with Flowmaster 2.5" B-body tails.
#3 was TTI H-pipe and Flowmaster 2.5" B-body tails.
#1 thru 3 were all 2.5" throughout.
Those were all mandrel-bent except the X-pipe setups required 2 15deg crinkle-bends outboard of the trans.
#4-5 (the Lincolns) were done with Summit Mustang GT cat-back kits and 2-1/4" home-fabbed tailpipes (from individual bends).
#6 (the Diplomat) was 2-1/4" Summit X-pipe and individual bends for the tailpipes. They dumped under the quarterpanel ala 66-67 Chevelle.
I used a Summit X-pipe kit (2 of them, to get some extra long-bends) and TTI tailpipes.
A-B-E-body kits are narrower, as the exhaust cutouts are symmetrical about the driveshaft, while the C-body is symmetrical to the width of the car.
So those would be easier to fab at home.
The Summit kit isn't long enough to fit the crossmember cutout on the driverside, so some extensions are needed.
But - you're fabbing most everything under the floorpan - so what's 1 more splice?
The headpipes actually turned out to be very easy, the correct angle-cut on them got them shooting rearward, and I got both cuts with little fuss.
The TTI tailpipes didn't fit very well. Folks rave about them, I didn't have good luck.
The Flowmaster B-body pipes were much better, and are what I would use on any future C-body.
I had considered some years ago to take off one of my systems and measure the angles, buy some custom bends, and tailor a Summit kit to be a near-bolt-on for a C-body.
Make a welding fixture off of my system to lay the new pipes in to weld certain pieces together, and weld bolting flanges in strategic locations, to make it all UPS-shippable.
Have ball-flanges hit the centerline of the crossmember widths so that a guy could hook up flexpipes to his existing exhaust and have a muffler shop finish it.
But - I never have time to pursue all the ideas my brain concocts.
I found 2 threads I did on the Drydock on car #1, priddineer 19 years ago.
Must've done an OK job, they are all still on the car and only needed 1 gasket change on 1 header flange.
My X-pipe thread:
Forums / Performance Tech / Hedman shorties, X-pipe kit, TTI tailpipes - C-Body DryDock
My Hedman #780-70 shorty header review:
https://cbodydrydock.com/e107_plugins/forum/forum_viewtopic.php?22001.0
PLUS - you can make sure it all fits high and tight, the way YOU want, not the way some disinterested guy decides to do it.
Blocks of wood and under-hoist prop-supports are a huge help. Insert the wood between pipe and car, mash it up, and make pipes meet.
A single prop with a car-width 2x4 can hold both pipes from 1 location.
Some things you tack-weld on teh floor, some things you weld in as you go.
You install the tailpipes first, then everything else is Promontory Point.
Plan 2-3 steps (and cuts) ahead.
BUT - don't do it unless you have another car to drive to the parts store, or to drive to work on Monday while you await more pipes/bends from Summit!
I've done the last 5 cars myself at a buddy's on his lift. 68 Fury, 70 300, 65 300, 2 Lincoln Mark 7 LSCs (5.0 HO engine) and a 88 Dippy copcar.
#1 was Summit X-pipe with TTI tails.
#2 was Summit X-pipe with Flowmaster 2.5" B-body tails.
#3 was TTI H-pipe and Flowmaster 2.5" B-body tails.
#1 thru 3 were all 2.5" throughout.
Those were all mandrel-bent except the X-pipe setups required 2 15deg crinkle-bends outboard of the trans.
#4-5 (the Lincolns) were done with Summit Mustang GT cat-back kits and 2-1/4" home-fabbed tailpipes (from individual bends).
#6 (the Diplomat) was 2-1/4" Summit X-pipe and individual bends for the tailpipes. They dumped under the quarterpanel ala 66-67 Chevelle.
I used a Summit X-pipe kit (2 of them, to get some extra long-bends) and TTI tailpipes.
A-B-E-body kits are narrower, as the exhaust cutouts are symmetrical about the driveshaft, while the C-body is symmetrical to the width of the car.
So those would be easier to fab at home.
The Summit kit isn't long enough to fit the crossmember cutout on the driverside, so some extensions are needed.
But - you're fabbing most everything under the floorpan - so what's 1 more splice?
The headpipes actually turned out to be very easy, the correct angle-cut on them got them shooting rearward, and I got both cuts with little fuss.
The TTI tailpipes didn't fit very well. Folks rave about them, I didn't have good luck.
The Flowmaster B-body pipes were much better, and are what I would use on any future C-body.
I had considered some years ago to take off one of my systems and measure the angles, buy some custom bends, and tailor a Summit kit to be a near-bolt-on for a C-body.
Make a welding fixture off of my system to lay the new pipes in to weld certain pieces together, and weld bolting flanges in strategic locations, to make it all UPS-shippable.
Have ball-flanges hit the centerline of the crossmember widths so that a guy could hook up flexpipes to his existing exhaust and have a muffler shop finish it.
But - I never have time to pursue all the ideas my brain concocts.
I found 2 threads I did on the Drydock on car #1, priddineer 19 years ago.
Must've done an OK job, they are all still on the car and only needed 1 gasket change on 1 header flange.
My X-pipe thread:
Forums / Performance Tech / Hedman shorties, X-pipe kit, TTI tailpipes - C-Body DryDock
My Hedman #780-70 shorty header review:
https://cbodydrydock.com/e107_plugins/forum/forum_viewtopic.php?22001.0
