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Re: 64 valiant /6 to v8 conversion questions??? [Re: Cab_Burge] #1389796
03/25/13 01:18 PM
03/25/13 01:18 PM
Joined: May 2003
Posts: 6,569
Downtown Roebuck Ont
Twostick Offline
Still wishing...
Twostick  Offline
Still wishing...

Joined: May 2003
Posts: 6,569
Downtown Roebuck Ont
Quote:

Quote:

Quote:

Quote:

i would think any mopar truck rear would be to wide for an a-body.



An 8.75 from an A100 may not be so far off?




Same as an early C-body

http://www.moparts.org/Tech/Archive/axle/17.html

Kevin


No A body rar end is the same as a early C body :sehruggy:




It was the A100 housing I was referring to. Looking at my response now I see the problem.

Kevin

Re: 64 valiant /6 to v8 conversion questions??? [Re: RapidRobert] #1389797
03/25/13 01:48 PM
03/25/13 01:48 PM
Joined: Nov 2004
Posts: 951
Alliance, Ohio
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Valiant_Showoff Offline
super stock
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Joined: Nov 2004
Posts: 951
Alliance, Ohio
Quote:

What 62 said you'll need the 64-66 A body 273 V8 dropped centerlink & a regular "centersump" 360 passenger car pan. The sump ain't in the center but is almost all the way forward but is commonly called a centersump pan. Those centerlinks go for 50-75 & www.forabodiesonly.com would be a good source for one.




I didn't change the centerlink when we installed the 360 in my '63 Valiant, but we built our own engine mounts by modifying the truck mounts that were on the engine when we pulled it from the scrap pile. Set the engine in the bay, bolted the tranny to it, then used the tranny cross-member to align the engine front & back. Tack welded the mounts to the stock K-member so that the stock centerlink missed the oil pan by about a 1/16". Just enough that it isn't an issue. Removed the engine and finished welding/fabricating the mounts to the K-member.

The biggest issue with the early A-bodies is the exhaust. I ran 340 cast iron manifolds when the car was first built years ago. Then stepped up to Spitfires in early 2000's before Harold Johnson started ripping people off. Paid $150 C.O.D. shipped to my house! Now running Doug's D-Dart headers, but they're expensive. Best bet on a budget is a set of old cast iron manifolds and some custom bent exhaust pipe. Though be forewarned the exhaust shop is NOT going to like you.....

Re: 64 valiant /6 to v8 conversion questions??? [Re: Valiant_Showoff] #1389798
03/25/13 02:12 PM
03/25/13 02:12 PM
Joined: May 2004
Posts: 1,380
Back In Iowa
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belv2vert66 Offline
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Joined: May 2004
Posts: 1,380
Back In Iowa
Quote:

Quote:

What 62 said you'll need the 64-66 A body 273 V8 dropped centerlink & a regular "centersump" 360 passenger car pan. The sump ain't in the center but is almost all the way forward but is commonly called a centersump pan. Those centerlinks go for 50-75 & www.forabodiesonly.com would be a good source for one.





I didn't change the centerlink when we installed the 360 in my '63 Valiant, but we built our own engine mounts by modifying the truck mounts that were on the engine when we pulled it from the scrap pile. Set the engine in the bay, bolted the tranny to it, then used the tranny cross-member to align the engine front & back. Tack welded the mounts to the stock K-member so that the stock centerlink missed the oil pan by about a 1/16". Just enough that it isn't an issue. Removed the engine and finished welding/fabricating the mounts to the K-member.

The biggest issue with the early A-bodies is the exhaust. I ran 340 cast iron manifolds when the car was first built years ago. Then stepped up to Spitfires in early 2000's before Harold Johnson started ripping people off. Paid $150 C.O.D. shipped to my house! Now running Doug's D-Dart headers, but they're expensive. Best bet on a budget is a set of old cast iron manifolds and some custom bent exhaust pipe. Though be forewarned the exhaust shop is NOT going to like you.....




My Spit Fires dump right above the torsion bars. While they were cheap, I really wish I would have went with the TTI's or Dougs. It took two exhaust shops to finally get the down pipes past the torsion bars so they didn't rattle and rub all over. By the time I was done I could have bought the better headers. I've seen a lot of people say that they can get 340 manifolds or even magnum manifolds to work but I wonder if there is a lot of shimming the motor up and beating on inner fenders while grinding cast off the manifold to get it done



Re: 64 valiant /6 to v8 conversion questions??? [Re: belv2vert66] #1389799
03/25/13 03:03 PM
03/25/13 03:03 PM

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I have early 340 hi-po manifolds on the 340 in my 65 Barracuda.

The passenger side barely clears the inner fender on my car, and given production variables, may hit on other early A's. Because the critical area is right at where the inner fender covers the upper control arm bushings, you can't beat on the inner fender to gain any significant extra clearance. The 71-later center dump 340 manifold fits much better, but doesn't flow as well.

On the driver's side, the manifold wouldn't clear my steering u-joint when the engine rocked over just a little bit. I solved that on mine by getting a firm feel adaptor and switching to a power steering column, which moved the joint toward the firewall enough to clear.

I have a 69 Dart 8 3/4 rear which is absolutely a bolt-in. Have no idea what could have gone wrong with the poster above who had problems.

A Duster 340 bellhousing, 4-speed transmission and driveshaft also bolted into my 65 without any modification (once I had switched to the 8 3/4 rear). But the clutch linkage needed some mild modification to fit, since the distance from the bellhousing to the inner fender is different from later A's.

From the trans crossmember back, the exhaust path is identical to later A's. The tricky part is the routing from the manifolds back the the trans crossmember. Factory replacement tailpipes for a Duster 340 were a straight bolt-in to my 65.

Re: 64 valiant /6 to v8 conversion questions??? #1389800
03/25/13 03:04 PM
03/25/13 03:04 PM

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Anonymous
Unregistered
Anonymous
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A



Duster 340 tailpipes with 69 Barracuda tips on my 65.

7640226-DSCF0445.jpg (60 downloads)
Re: 64 valiant /6 to v8 conversion questions??? [Re: HotRodDave] #1389801
03/25/13 03:27 PM
03/25/13 03:27 PM
Joined: Oct 2006
Posts: 35
missouri
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werty Offline
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Posts: 35
missouri
I had to change the center link just like everyone. Maybe mine is the only nightmare? What are you guys using for headers?

Re: 64 valiant /6 to v8 conversion questions??? [Re: werty] #1389802
03/26/13 01:27 PM
03/26/13 01:27 PM
Joined: Jan 2003
Posts: 926
MICHIGAN
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BB65Barracuda Offline
super stock
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Posts: 926
MICHIGAN
Remove your fender wells!!
I did a 65 Barracuda and anything more than a SB Is tight to say the least. I removed my inner fenders and used motor plate and wala!! Instant tire shredder!
Oh did I mention that even with the motor pused back it would push threw turns like a snowplow on Ice!!! Mine was a 440/4speed.


1957 Power wagon wm300 original 10.000 mile truck, 1964 dodge Polara Convertible numbers matching
Re: 64 valiant /6 to v8 conversion questions??? [Re: HotRodDave] #1389803
03/26/13 02:16 PM
03/26/13 02:16 PM
Joined: Dec 2007
Posts: 1,357
central Florida
VL21 Offline
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VL21  Offline
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Joined: Dec 2007
Posts: 1,357
central Florida


Dave, since I seem to remember you having some history with early Dakotas, take a yardstick to one of those housings, I am pretty sure they are same or very similar dimensions, IIRC even the same spring pad locations.
Trouble is 8.25 seems to be scarce in the early Daks/5 bolt.


It takes gasoline to interest me.
Re: 64 valiant /6 to v8 conversion questions??? [Re: HotRodDave] #1389804
03/26/13 03:02 PM
03/26/13 03:02 PM
Joined: Dec 2005
Posts: 1,160
Cruising!
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QuickDodge Offline
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Q

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Posts: 1,160
Cruising!
The spring spacing on the A-body and the 1972-1993 trucks is the same. Some of the truck guys like to install A body 8 3/4 into their trucks because the A body rear axle is much narrower than the truck axle. After cutting out the wheel wells, they can tuck some large tires resulting in a "pro-street" look. The other big difference between the truck and the A body is that the A body axle mounts on top of the springs, while the truck axles mount below the spring. When installing an A body axle in a truck, the rear of the truck will be lowered several inches.

Trying to install a truck axle in an A body will result in an A body that sits to high in the back with the wheels sticking out past the body significantly. Probably not the look you are after.

Re: 64 valiant /6 to v8 conversion questions??? [Re: QuickDodge] #1389805
03/27/13 11:39 AM
03/27/13 11:39 AM
Joined: Jan 2005
Posts: 12,423
Kalispell Mt.
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HotRodDave Offline OP
I Live Here
HotRodDave  Offline OP
I Live Here
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Posts: 12,423
Kalispell Mt.
I gave up and sold the valiant and started building a 90 Dakota, painted it orange, put the 5.9 and 5 speed in already now I am swapping out the interior for one that is near perfect. Now to figure out the wiring harness to run the magnum injection


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: 64 valiant /6 to v8 conversion questions??? [Re: HotRodDave] #1389806
03/28/13 07:23 AM
03/28/13 07:23 AM
Joined: Jan 2003
Posts: 926
MICHIGAN
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MICHIGAN
Wow,!!!


1957 Power wagon wm300 original 10.000 mile truck, 1964 dodge Polara Convertible numbers matching
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