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LA to B

318/904 to 400/518.

About this Mopar:

Coronet Fender 400 DSC_5966 - Copy.JPG
You saw it here First !
Fender Edition Coronet BB 400 with a 518 OD Transmission.


inspector down and not dirty DSC_5986 - Copy.JPG



BRAKES
Disc brakes with factory upper a-arm weighted in at 54lbs Purchased from C.C.P.
The Drum Brake and original a arm 56lbs
Going to use a factory style distribution valve.
11 b discs vented slotted.jpg 11 Discs inside 15 inch wheel.jpg 21 brake dist lines DSC_5906.JPG
New 3/16" Copper Nickel lines installed up front.

SUSPENSION
Ordered up a new set of Torsion's from PST. Installed
Used the boiling water trick to slide the bar seals on.
Trick is to boil them in water in the microwave together until the water is a rolling boil.

A-Arms from partsgeek for 99bucks. Very nice...But I do need to sleeve the camber bolts to fit the bushings.
The bushings are 5/8" i.d. so prepare to grind down the
originals to slide inside them or buy 13/16 o.d. - 1/2" i.d. - 1 3/4" long bushings.
11 discs upper a arms.JPG
THESE A-ARMS ARE ......REALLY HARD TO GET IN SPEC FOR CASTER,,,CAMBER AND THEY RUB ON THE CAMBER BOLT MOUNTS.
PLUS LIKE I SAID THE INSIDE DIAMETERS ARE NOT 1/2. I drove the car anyway for a 1000 miles or so. They are going to bet cut up or tossed.
20221109_125913.jpg

I ended up rebuilding the stock components.
a arms back to stock.jpg


Lower Control arms welded up and getting Poly Bushings.
The steel sleeves in the control arms needed a lot of sanding to get the poly to fit.
12 sz  lower control arms.jpg12 lower poly   20210314_111950.jpg


STEERING
Upgrading to the Borgeson Box
Stock Strut Rods with Poly Bushings, Used red so they popped.
12 u bushings and big bars.jpg


CONTROLS/WIRING
Coil mounted
Throttle cable and Kick down bracket made.
Settled on the 3rd one I made.
Throttle return spring bracket made.


TRANSMISSION MOUNT
Had to do more clearancing then expected to get the 518 tail shaft to fit.
Also point of note. They require much more cooling capacity then a 904 or 727 so new
3/8 lines are needed and an extra cooler up front.
16 tnt cross memeber 20210319_144223.jpg 16 tnt trans crossmember 20210319_151333.jpg
22 trans linkage.jpg

Made new brackets and one linkage rod to shift the transmission.
All day affair...I need an assistant.

COOLING
I have decided to bite the bullet and spring for a new radiator from Speed Cooling/Entropy.
I just had to do a little grinding on the bolt holes to get them wide enough to bolt up.
Really nice setup. I bought their harness as well.
The buzz kill was the heater core giving up on my first heat cycle....ug.
22 entropy radiator.jpg

HORNS
Had to paint them while I was there.
Alis Chalmers orange. I had thought about getting
high tone PIAA's but the originals have a great bass tone. and
paint is ez.


EXHAUST
exhaust 318 to 400.jpg
318 Had a single 1.75 exhaust
Now we have dual 2.5

exhaust over axle.jpg

exhaust 25 DSC_6005 - Copy.JPG

This is a prefab kit from Summit Racing.
It actually fit pretty nice however I did modify a few pieces.
exhaust rear DSC_6008.JPG


Made the custom tips from 2 1/2 tubing.
tips 20210503_165352.jpg tips compare.jpgtip fab 202.jpg
tips 20210504_092607_1.jpg






26 on the road again 71 coronet.jpg





Comments

Last ride with the 318. Went to the shop to make sure all the freon was out of the system....Green HotRodding
 
Cool ride. I've have a thing for '71-'74 Coronets since I watches UTG build the Bottle Rocket.
Should be a great sleeper
:thumbsup:
 
What was the cut out part of the cross member for. Dose that let the linkage hook up to the trans. My runner had an automatic in it but none of that was cut out. Just wondered.
 
What was the cut out part of the cross member for. Dose that let the linkage hook up to the trans. My runner had an automatic in it but none of that was cut out. Just wondered.
It is to clear the stiffening rib on the tail shaft of the 518. It is substantially wider then the 904 or 727.
 
Have to do kinda the same with this. Going to run a motorhome 727 with a bolt on yoke need the clearance.
 
Cool build! Looking at your crossmember/ trans. I see that speedo cable is going to be a bear or do you have room that i'm not seeing?
 
that's an awesome coronet, looks very well built. great idea with the 518 o.d. what did the trans come out of?. and how in the world did you get it to mate up to that big block? oh great idea updating the radiator and having dual fans. well done man.
 
that's an awesome coronet, looks very well built. great idea with the 518 o.d. what did the trans come out of?. and how in the world did you get it to mate up to that big block? oh great idea updating the radiator and having dual fans. well done man.
Thanks a lot rebelramalabam...Did I spell that right...lol.
The 518 was out of a 94 van. Just a A518rh really. To get it to mate to the BB the bell house gets cut off and replaced with a bolt up JW bellhousing.

https://www.youtube.com/watch?v=fqjPD-YXb1E

And yes the Radiator and Fan combo is absolutely awesome and so worth the bucks.

Thanks again.
 

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