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Re: 72 "Gold Duster" Build [Re: RoadRunnerLuva] #2552729
09/21/18 10:08 AM
09/21/18 10:08 AM
Joined: Jun 2005
Posts: 5,095
Western Md.
skicker Offline OP
"The Champ"
skicker  Offline OP
"The Champ"

Joined: Jun 2005
Posts: 5,095
Western Md.
Originally Posted By RoadRunnerLuva

What are the specs on those Pro=Maxx heads your'e using??

I have no clue...The engine builder checked out several different heads...had I think decided on one (sidewinder maybe?)and I had ask around about it also and found a few things he didn't like about them after talking with a couple racers.
After a lengthy discussion with Pittsburghracer I called Todd at Marsh Performance about a set of heads.
I forwarded Todd's contact info to the engine builder and those two decided what to use...Also ended up getting the rockers and shafts and maybe even push rods through Todd.

http://www.mopartsracing.com/

Marsh Performance
1250 Wilson Road
Linwood, NC 27299
Call: 336-283-0800

0804181712.jpg0804181937d.jpg

...FAFO...
Re: 72 "Gold Duster" Build [Re: skicker] #2570377
10/27/18 09:49 PM
10/27/18 09:49 PM
Joined: Nov 2004
Posts: 1,745
Maryland
340_Dart Offline
top fuel
340_Dart  Offline
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Posts: 1,745
Maryland
Originally Posted By skicker
I don't know any of the internal specs.
I bought the motor used from a friend.
340 block with a stroker kit...ends up being 416. Probably .030 bore?
It was put together about 10 years or so ago...
With W2 heads it ran 11.20's in a 70 Dart...he said if he would put it back in he'd freshen it.
Dad bought the short block...convertor and the transmission out of the 70 Dart. It was removed from his car sent out and gone through.
All bearing tolerances were dead on and everything inside looked great. A fresh hone and new rings and bearings is all that was done.
The compression is a little higher now with the Promaxx heads rather than the W2's that were previously on it. I think the engine builder said about 10.2-1. Cam was advanced from where it was installed previously.
Pump gas motor..750 carb...could maybe use an 850. MSD distributor with one silver and one blue spring and black advance pill (18 degree). 36 degree's total timing...
Doug's #453 headers 3500 convertor RMVB 727 with 4.11 gears and 28" M/T ET Streets.
Seems to pull pretty hard. It's a lot stronger than the 340 in the 69 Dart.
No Dyno time...calculating the short block with the heads and the size of the runners and everything the engine builder figures its in the 465-475 range...
All I know is it's all he needs...at 79 he don't need to go any faster...
We got the motor from a member here...maybe he'll chime in with the particulars about the engine...


‘73 340 block bored .030
Decked .018 for 0 deck
ARP main studs
Mopar cast 4” crank
CAT H-beam Rods
Diamond dishes pistons
up
Ran 11.20s @ 119 in my 70 Dart 3350# with a 4000 converter and 4.10s

Last edited by 340_Dart; 10/27/18 09:51 PM.
Re: 72 "Gold Duster" Build [Re: 340_Dart] #2571200
10/29/18 08:07 PM
10/29/18 08:07 PM
Joined: Jan 2003
Posts: 5,283
Land 'O Lakes
RoadRunnerLuva Offline
master
RoadRunnerLuva  Offline
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Posts: 5,283
Land 'O Lakes
Any specs on the camshaft?? shruggy


Plymouth Makes It!
Re: 72 "Gold Duster" Build [Re: RoadRunnerLuva] #2571223
10/29/18 08:39 PM
10/29/18 08:39 PM
Joined: Jun 2005
Posts: 5,095
Western Md.
skicker Offline OP
"The Champ"
skicker  Offline OP
"The Champ"

Joined: Jun 2005
Posts: 5,095
Western Md.
Originally Posted By RoadRunnerLuva
Any specs on the camshaft?? shruggy

shruggy
I'll have to defer to 340 Dart...
Whatever it is it seems to work pretty good... up


...FAFO...
Re: 72 "Gold Duster" Build [Re: skicker] #2579865
11/18/18 03:22 PM
11/18/18 03:22 PM
Joined: Feb 2011
Posts: 105
michigan
J
jbmopars Offline
member
jbmopars  Offline
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J

Joined: Feb 2011
Posts: 105
michigan
Very similar to how mine looked when I started. Great looking build.

Re: 72 "Gold Duster" Build [Re: skicker] #2647653
04/21/19 09:59 PM
04/21/19 09:59 PM
Joined: Aug 2006
Posts: 2,487
God's Country Maryland
GODSCOUNTRY340 Offline
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God's Country Maryland
Originally Posted by skicker
The engine builder took the car last Wednesday and put dual 2 1/2" exhausts with Flowmaster 40's and tail pipes all the way to the bumper...So I guess its done...Less maybe a set of exhaust tips some time...and I think I want to put a battery disconnect in it...wipers...I guess they're never really done...

He went Friday and had a little bigger set of front tires put on...
He drove it Thursday...Friday...Saturday...Sunday and Monday...no hinky mechanical issues...never got hot in 90 degree temps...
He doesn't know it but I did manage to remove a little rubber from the back tires Saturday Night... whistling biggrin
Gave a ride to the guy we bought the motor from Saturday... he seems to think its in the 11.50's range...
Talked to Dad this morning...he's looking for another car to start on... runaway


Your dad just wants to keep busy and he loves working on his cars. What is the next project?


I love the smell of Deer guts in the morning, it smells like... VICTORY!
Re: 72 "Gold Duster" Build [Re: GODSCOUNTRY340] #2655149
05/13/19 09:02 PM
05/13/19 09:02 PM
Joined: Jun 2005
Posts: 5,095
Western Md.
skicker Offline OP
"The Champ"
skicker  Offline OP
"The Champ"

Joined: Jun 2005
Posts: 5,095
Western Md.
Originally Posted by GODSCOUNTRY340


Your dad just wants to keep busy and he loves working on his cars. What is the next project?


No idea yet...Right now he's almost done planting everything for his garden...he seems to always be looking around...

I went down Thursday and bled the brakes out one more time...

Set the timing...he had already run the valves...

It definitely pulls hard...


...FAFO...
Re: 72 "Gold Duster" Build [Re: skicker] #2655169
05/13/19 09:48 PM
05/13/19 09:48 PM
Joined: Aug 2006
Posts: 2,487
God's Country Maryland
GODSCOUNTRY340 Offline
top fuel
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Joined: Aug 2006
Posts: 2,487
God's Country Maryland
I'm sure it won't be long before he finds another project for you to work on, I mean for him to work on. I really hate to say this because it will make your BIG head even bigger but I think it's great that you help your dad out as much as you do. I know you put in a LOT of hours there and I'm sure he appreciates it, now get off your BUTTS and find you guys another Mopar.


I love the smell of Deer guts in the morning, it smells like... VICTORY!
Re: 72 "Gold Duster" Build [Re: GODSCOUNTRY340] #2706747
10/14/19 03:56 PM
10/14/19 03:56 PM
Joined: Jun 2005
Posts: 5,095
Western Md.
skicker Offline OP
"The Champ"
skicker  Offline OP
"The Champ"

Joined: Jun 2005
Posts: 5,095
Western Md.
There is a Test/Tune at Mason Dixon on the 26th of October and then again on the 9th of November...I'm going to watch the weather and maybe plan on taking it down and let him try it out...

He's been running it everywhere...drives it 40 miles or so one way to car shows and such...

As of now there hasn't been any mechanical issues at all...

It just gets 91 pump gas put in and he logs miles...

He has been playing with jetting and tuning on it little by little...

I took it out for a little while a couple Saturday's ago and noticed its trying to spin at the initial hit...Its never done that before....

Come to find out he swapped the stock shocks off of the back and put a set of KYB Gas shocks on it...

It didn't feel like it stood as hard as it did before...

He had taken it out and hit it a few times and noticed the same thing...

After pulling the gas shocks off they were 2 1/2" shorter on full extension than the stock oil shocks...

Changed out the shocks and its back to normal...

There's not much convertor in it at 3500 but it will dead hook from an idle on the street and leaves hard...

Using the MSD Streetfighter box I currently have the rev limiter set at 6500...I may need to raise that up a little to go to the track...

He swears it still pulls hard when it hits the limiter... shruggy

66639647_10157429495189494_2805243806184636416_n.jpg

...FAFO...
Re: 72 "Gold Duster" Build [Re: skicker] #2708650
10/20/19 08:15 PM
10/20/19 08:15 PM
Joined: Feb 2004
Posts: 855
ontario canada kingston
aspenrt360 Offline
super stock
aspenrt360  Offline
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Joined: Feb 2004
Posts: 855
ontario canada kingston
really nice!


2013 Chrysler 300 touring 1974 Dodge Charger SE. 360-727-8.75-3.23 sure grip 1972 Dodge Dart Swinger 1995 Dodge Ram 1500 4x4
Re: 72 "Gold Duster" Build [Re: aspenrt360] #2708908
10/21/19 03:34 PM
10/21/19 03:34 PM
Joined: May 2005
Posts: 1,030
ohio
6
67mprfan Offline
super stock
67mprfan  Offline
super stock
6

Joined: May 2005
Posts: 1,030
ohio
Is that your green 70 sitting beside your dad's car


71 demon stock stroke 440/indy ez-1 running 10.10 @ 132.14 mph in the 1/4 and 6.36 @ 107.46 mph in the 1/8 not in the same weekend but It did it then I sold it.
67 Belvedere that worked it's way in the 10's
Re: 72 "Gold Duster" Build [Re: 67mprfan] #2709114
10/22/19 09:26 AM
10/22/19 09:26 AM
Joined: Jun 2005
Posts: 5,095
Western Md.
skicker Offline OP
"The Champ"
skicker  Offline OP
"The Champ"

Joined: Jun 2005
Posts: 5,095
Western Md.
Yea...I still run it around a lot...I'd like to do a couple updates...9 or 10 summers and almost 20K on it since it was built...

If nothing else it needs a few things blown apart...cleaned up and detailed again...


...FAFO...
Re: 72 "Gold Duster" Build [Re: skicker] #2712654
11/04/19 12:27 PM
11/04/19 12:27 PM
Joined: Jun 2005
Posts: 5,095
Western Md.
skicker Offline OP
"The Champ"
skicker  Offline OP
"The Champ"

Joined: Jun 2005
Posts: 5,095
Western Md.
Took it to the track for the 1st time last Saturday...

Car was raced just as it is driven on the street with no modifications...

Best run was an 11.66 at 113 mph...

IMG_1170.JPG

...FAFO...
Re: 72 "Gold Duster" Build [Re: skicker] #2712777
11/04/19 06:22 PM
11/04/19 06:22 PM
Joined: Aug 2006
Posts: 2,487
God's Country Maryland
GODSCOUNTRY340 Offline
top fuel
GODSCOUNTRY340  Offline
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Posts: 2,487
God's Country Maryland
Nice run. Sorry I couldn't make it, I had to take a 340 off my start cart and put the old Hemi on it and get it running for a guy to see. I was predicting a 11.74 run, guessed pretty close. Did you drive it or your dad?


I love the smell of Deer guts in the morning, it smells like... VICTORY!
Re: 72 "Gold Duster" Build [Re: skicker] #2719364
11/26/19 01:57 AM
11/26/19 01:57 AM
Joined: Nov 2019
Posts: 8
Santa Clara, CA, USA
A
altair18 Offline
member
altair18  Offline
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A

Joined: Nov 2019
Posts: 8
Santa Clara, CA, USA
That's a fine-looking car you have.


Trying out bilstein shock and I'm very pleased how easy and smooth it is to drive my pickup in rocky terrain.
Re: 72 "Gold Duster" Build [Re: altair18] #2719473
11/26/19 02:02 PM
11/26/19 02:02 PM
Joined: Jun 2005
Posts: 5,095
Western Md.
skicker Offline OP
"The Champ"
skicker  Offline OP
"The Champ"

Joined: Jun 2005
Posts: 5,095
Western Md.
Thx to all who have replied...

Mike...I drove it...we got down there and he didn't feel like driving it...

I got a p/m with someone wanting to see how the spring sliders were attached.

Above them is a 3/16" plate with holes drilled in it and nuts welded to the inside.

The plates are welded in and the sliders just bolt on.

060.jpg063.jpg

...FAFO...
Re: 72 "Gold Duster" Build [Re: skicker] #2720585
12/01/19 09:58 AM
12/01/19 09:58 AM
Joined: Jul 2007
Posts: 3
Canada
3
3forty Offline
member
3forty  Offline
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3

Joined: Jul 2007
Posts: 3
Canada
Nice work on the sliders

Last edited by 3forty; 12/01/19 09:59 AM.
Re: 72 "Gold Duster" Build [Re: skicker] #2734942
01/20/20 03:27 PM
01/20/20 03:27 PM
Joined: Jan 2003
Posts: 5,283
Land 'O Lakes
RoadRunnerLuva Offline
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RoadRunnerLuva  Offline
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Posts: 5,283
Land 'O Lakes
Originally Posted by skicker
Took it to the track for the 1st time last Saturday...

Car was raced just as it is driven on the street with no modifications...

Best run was an 11.66 at 113 mph...


Very cool! Do you happen to remember what RPM's you were shifting at?


Plymouth Makes It!
Re: 72 "Gold Duster" Build [Re: RoadRunnerLuva] #2735065
01/20/20 09:01 PM
01/20/20 09:01 PM
Joined: Jun 2005
Posts: 5,095
Western Md.
skicker Offline OP
"The Champ"
skicker  Offline OP
"The Champ"

Joined: Jun 2005
Posts: 5,095
Western Md.
With no tach I'm not sure...

Seemed like I wound the 1-2 shift a good bit but I know it was below 6,500 cause that's where its chipped at...

The 2-3 was less than the 1-2...

For the 1st trip down on a new build I'll take it...

Especially in street trim with no mods...

It will run a better number probably just by installing a tach...

I may just put a light in it since he doesn't want a tach... shruggy


...FAFO...
Re: 72 "Gold Duster" Build [Re: skicker] #2736203
01/24/20 04:47 PM
01/24/20 04:47 PM
Joined: Jan 2003
Posts: 5,283
Land 'O Lakes
RoadRunnerLuva Offline
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RoadRunnerLuva  Offline
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Posts: 5,283
Land 'O Lakes
Iv'e got a 3-3/4" tach on the steering column with a mini programmable shift light, and my Rev N nator box is set at 6,500 IIRC. I still need to get some subframe connectors welded in, and some better rear tires, before I will take mine out for some testing in the spring. Once again, great job on the Duster, keep us posted on any new mods, or track testing up


Plymouth Makes It!
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