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Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2460256
03/03/18 12:28 AM
03/03/18 12:28 AM
Joined: Dec 2013
Posts: 2,661
Wichita
G
GY3 Offline
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Joined: Dec 2013
Posts: 2,661
Wichita
Hadn't seen that yet! Cool!

Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2466508
03/14/18 06:08 PM
03/14/18 06:08 PM
Joined: Jul 2009
Posts: 822
Newton, KS
7
70B5Cuda Offline OP
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Joined: Jul 2009
Posts: 822
Newton, KS
The differential is going to be a limited slip Getrag unit that I pulled from a 2010 Challenger SRT8 I parted out. The Challengers with the 6 speed manual transmission received a 3.91 ratio vs the 3.06 that came with the automatic. My 2010 Challenger daily driver has the exact same 6.1L, 6 speed, and Getrag 3.91. With the .50 overdrive ratio, I am turning 2,000 RPM at 85mph. Should be fun off the line and still comfortable on the highway. The differential just got installed so that exhaust could be routed.

View from the right side...


View from behind:


1970 Barracuda B5 6.1 Hemi/6 speed
1969 Charger survivor in R6 383/727-wrecked 12/24/18
1968 Charger rat rod w/ 6.1L/A518/dana 60
1968 Roadrunner w/ 6.1L/6 speed
2010 B5 Challenger SRT 6.1L/6 speed
2008 B5 Charger Super Bee SRT 6.1L/Auto
1996 Dodge Ram 2500 12 valve/5 speed
Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2467590
03/17/18 12:57 AM
03/17/18 12:57 AM
Joined: Jul 2009
Posts: 822
Newton, KS
7
70B5Cuda Offline OP
super stock
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Joined: Jul 2009
Posts: 822
Newton, KS
The OEM SRT wheels just didn't look right so I finally decided on a wheel.....now that I know the 20x9 will fit over the Brembo calipers, I can order up the other 3 wheels.





1970 Barracuda B5 6.1 Hemi/6 speed
1969 Charger survivor in R6 383/727-wrecked 12/24/18
1968 Charger rat rod w/ 6.1L/A518/dana 60
1968 Roadrunner w/ 6.1L/6 speed
2010 B5 Challenger SRT 6.1L/6 speed
2008 B5 Charger Super Bee SRT 6.1L/Auto
1996 Dodge Ram 2500 12 valve/5 speed
Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2471194
03/24/18 12:54 AM
03/24/18 12:54 AM
Joined: Jul 2009
Posts: 822
Newton, KS
7
70B5Cuda Offline OP
super stock
70B5Cuda  Offline OP
super stock
7

Joined: Jul 2009
Posts: 822
Newton, KS
The 3" Exhaust is mocked up and tacked.





1970 Barracuda B5 6.1 Hemi/6 speed
1969 Charger survivor in R6 383/727-wrecked 12/24/18
1968 Charger rat rod w/ 6.1L/A518/dana 60
1968 Roadrunner w/ 6.1L/6 speed
2010 B5 Challenger SRT 6.1L/6 speed
2008 B5 Charger Super Bee SRT 6.1L/Auto
1996 Dodge Ram 2500 12 valve/5 speed
Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2476586
04/03/18 01:04 AM
04/03/18 01:04 AM
Joined: Jul 2009
Posts: 822
Newton, KS
7
70B5Cuda Offline OP
super stock
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super stock
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Joined: Jul 2009
Posts: 822
Newton, KS
Front tires are 245/40/20 and the rears are 315/40/20. I've got room for more tire on the rear, but I'm happy with the 315 size and price. Since 315/40/20's come on several production vehicles, prices are much cheaper compared to a 325 or 335.



And a few pics of the wheels on the car...







1970 Barracuda B5 6.1 Hemi/6 speed
1969 Charger survivor in R6 383/727-wrecked 12/24/18
1968 Charger rat rod w/ 6.1L/A518/dana 60
1968 Roadrunner w/ 6.1L/6 speed
2010 B5 Challenger SRT 6.1L/6 speed
2008 B5 Charger Super Bee SRT 6.1L/Auto
1996 Dodge Ram 2500 12 valve/5 speed
Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2479139
04/07/18 11:22 PM
04/07/18 11:22 PM
Joined: Jul 2009
Posts: 822
Newton, KS
7
70B5Cuda Offline OP
super stock
70B5Cuda  Offline OP
super stock
7

Joined: Jul 2009
Posts: 822
Newton, KS
I bought a fuel tank (for fuel injection) from Tanks Inc. but the independent rear suspension frame is so huge that a stock fuel tank won't fit. So....the new tank had to be modified. Here's what it looked like in stock form:



And modified....




1970 Barracuda B5 6.1 Hemi/6 speed
1969 Charger survivor in R6 383/727-wrecked 12/24/18
1968 Charger rat rod w/ 6.1L/A518/dana 60
1968 Roadrunner w/ 6.1L/6 speed
2010 B5 Challenger SRT 6.1L/6 speed
2008 B5 Charger Super Bee SRT 6.1L/Auto
1996 Dodge Ram 2500 12 valve/5 speed
Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2479299
04/08/18 11:13 AM
04/08/18 11:13 AM
Joined: Feb 2013
Posts: 487
Maryland
K
Keepat Offline
mopar
Keepat  Offline
mopar
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Joined: Feb 2013
Posts: 487
Maryland
Very nice job on the tank modification!!
Pat

Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2491910
05/04/18 12:12 PM
05/04/18 12:12 PM
Joined: Jul 2009
Posts: 822
Newton, KS
7
70B5Cuda Offline OP
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Posts: 822
Newton, KS
Thanks Pat!

This 6.1L came out of a 53K mile 2009 Dodge Challenger SRT8 that I parted out about 18 months ago. It ran great when I removed it, but I want a little more then the stock 425hp. I pulled the stock heads for inspection. The cylinder walls and pistons are in good condition.





1970 Barracuda B5 6.1 Hemi/6 speed
1969 Charger survivor in R6 383/727-wrecked 12/24/18
1968 Charger rat rod w/ 6.1L/A518/dana 60
1968 Roadrunner w/ 6.1L/6 speed
2010 B5 Challenger SRT 6.1L/6 speed
2008 B5 Charger Super Bee SRT 6.1L/Auto
1996 Dodge Ram 2500 12 valve/5 speed
Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2491911
05/04/18 12:13 PM
05/04/18 12:13 PM
Joined: Jul 2009
Posts: 822
Newton, KS
7
70B5Cuda Offline OP
super stock
70B5Cuda  Offline OP
super stock
7

Joined: Jul 2009
Posts: 822
Newton, KS
I have a set of CNC ported 6.1L heads that came off a car I parted out about 4 years ago. I had then cleaned up and inspected by my machine shop. They did a valve job and installed new valve seals.
While the heads were off, I removed the lifters and installed an Arrington SR2B camshaft. With a good tune, the CNC ported heads and cam should be good for close to 500hp







1970 Barracuda B5 6.1 Hemi/6 speed
1969 Charger survivor in R6 383/727-wrecked 12/24/18
1968 Charger rat rod w/ 6.1L/A518/dana 60
1968 Roadrunner w/ 6.1L/6 speed
2010 B5 Challenger SRT 6.1L/6 speed
2008 B5 Charger Super Bee SRT 6.1L/Auto
1996 Dodge Ram 2500 12 valve/5 speed
Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2544194
09/01/18 11:53 AM
09/01/18 11:53 AM
Joined: Jul 2009
Posts: 822
Newton, KS
7
70B5Cuda Offline OP
super stock
70B5Cuda  Offline OP
super stock
7

Joined: Jul 2009
Posts: 822
Newton, KS
I had a few changes made. I was not happy with the fit of the passenger side door. It must have been tweaked because it never fit right. So I ordered a new AMD door shell, but the quarter panel was installed using the original door so the leading edge of the quarter panel had to be sliced and worked to match the profile of the new AMD door.

Both front fenders had to be tweaked to fit the big tires and the low stance. The brace that runs from the top of the arch (up over the tire) had to be reshaped. Also, the front corner of the arch was modified. The corner was sliced and moved forward.

I also didn't like the driver's side front fender. It had a pinhole that turned into more then we planned on. Plus I had a brand new AMD fender that I had picked up for pretty cheap so it was installed.

I picked the car up yesterday and I'm very happy with what was done. I LOVE the stance! Part of me wants to just get it running and drive it as is!

















1970 Barracuda B5 6.1 Hemi/6 speed
1969 Charger survivor in R6 383/727-wrecked 12/24/18
1968 Charger rat rod w/ 6.1L/A518/dana 60
1968 Roadrunner w/ 6.1L/6 speed
2010 B5 Challenger SRT 6.1L/6 speed
2008 B5 Charger Super Bee SRT 6.1L/Auto
1996 Dodge Ram 2500 12 valve/5 speed
Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2604762
01/11/19 01:51 AM
01/11/19 01:51 AM
Joined: Jul 2009
Posts: 822
Newton, KS
7
70B5Cuda Offline OP
super stock
70B5Cuda  Offline OP
super stock
7

Joined: Jul 2009
Posts: 822
Newton, KS
The Roadrunner doesn't look like its any further along, but I have made some progress...Over the past couple months I've been really busy with coaching two of my children's basketball teams, band/school programs, and family get togethers/activities, but i have found the time to at least remove every ounce of undercoating from the Roadrunner. on previous cars I have removed undercoating with a propane torch and a thin paint scraper but I have found a superior method. I bought a cheap pneumatic needle scaler (about $30 on ebay), which has 12-15 rods which pop out and chip away at undercoating. It's dirty/messy, but its quick and it leaves a nice clean surface behind. The extra benefit is that you don't drop any burning pieces of rubber on your face or down the sleeves of your shirt. For reference, each inner fender took me about an hour to remove the undercoating. It would have been much faster, but my big compressor is down and I was using a 30 gallon Craftsman compressor so I spent a lot of time waiting for it to pressurize the tank.





1970 Barracuda B5 6.1 Hemi/6 speed
1969 Charger survivor in R6 383/727-wrecked 12/24/18
1968 Charger rat rod w/ 6.1L/A518/dana 60
1968 Roadrunner w/ 6.1L/6 speed
2010 B5 Challenger SRT 6.1L/6 speed
2008 B5 Charger Super Bee SRT 6.1L/Auto
1996 Dodge Ram 2500 12 valve/5 speed
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