Gen 1 392 Hemi and 72 Demon

[Coyote Jack]

For now I am just spit balling. I know where there are a couple of Gen 1 392's I can buy. What I am wondering about is, how big of a deal is it to make one of these work in a 72 Demon. I know about the adapter plate to make a smallblock 727 work with it. Will a TC for a small block work as well? Headers will probably be a PITA. What about a starter? Motor mounts? Dizzy? I believe there is a way to convert one to a modern water pump. I am not to worried about the internals of the engine as I would be turning this into a roots blower engine with EFI. Has anybody got any other areas of concern I should be thinking about?

Jack

 

[toolmanmike]

I can't imagine it would be easy or thousands would have done it. I can't remember seeing one done. Only a Gen 1 in a early Valiant.

 

[jeff alder]

It would be a nice wow factor but that is a bulky heavy engine. I would never want to shoe horn one in but the coolness might outweigh that 750 lb engine and the headaches to install it.

 

[Professor Fate]

Hot Heads has seen it all/done it all/has it all with Gen 1 Chrysler, Dodge, and DeSoto Hemis.
Hot Heads Research & Racing Early Chrysler Hemi Engine Parts

 

[ch1ll]

Tooooo much going against it. The big one, cost. You think it's getting hard to find small block stuff, that engine is like archeology. Too much weight and it won't be all that fun to drive.

Leave what remains of those to the hotrod crowd.

If you need to spend tons of cabbage, GenIII hemi. Light weight, available install kits, hp parts will result in a faster, more driveable car and way cooler.

 

[65 Dartman]

I can't imagine it would be easy or thousands would have done it. I can't remember seeing one done. Only a Gen 1 in a early Valiant.

There’s a 64 Valiant that was posted somewhere that had a 354 Gen 1 shoehorned in to it. If that can be done in an early A, then the wider 67-later engine compartment should be an easier install. The biggest downside that was mentioned is the weight of that motor. Aluminum heads (if available) and intake manifold could drop that weight to a more manageable level.

 

[A56]

A833 4 speed, 8 3/4 with 3:91 gears
I know it's not a 392, but

 

[Murray]

Doesn't that require firewall mods?

 

[Coyote Jack]

I know it's not a 392, but

Very nice looking setup you have there.

As near as I can figure a 354 is about the same physical size as a 392 seeing as they can interchange a lot of parts including the heads. I believe the deck is a little higher on the 392 making it a bit wider. What headers did you use? What were the pitfalls of fitting it in your Dart? How was it cost wise? What size of converter, ie: sb? Motor mounts?

Jack

 

[A56]

Very nice looking setup you have there.

As near as I can figure a 354 is about the same physical size as a 392 seeing as they can interchange a lot of parts including the heads. I believe the deck is a little higher on the 392 making it a bit wider. What headers did you use? What were the pitfalls of fitting it in your Dart? How was it cost wise? What size of converter, ie: sb? Motor mounts?

Jack

Unfortunately, it's not my car. I just remembered this video from a few years ago and thought I'd post it here.

 

[Coyote Jack]

Unfortunately, it's not my car. I just remembered this video from a few years ago and thought I'd post it here.

You don't happen to know the who's Youtube page it is. Maybe I can track him down and ask a few questions.

Jack

 

[A56]

You don't happen to know the who's Youtube page it is. Maybe I can track him down and ask a few questions.

Jack

I would recommend reading the comments from the video. I believe the owner or family posted the video and there are comments from them.

 

[RustyRatRod]

Do it. If everything was easy, there wouldn't be any cool hot rods drivin around.

 

[qkcuda]

I saw this one at a cruise a couple of weeks ago. A 392 in a 67 Satellite.

 

[JDMopar]

My friend who is a machinist built a 354 with all the Hot Heads goodies a while back. The modern water pump is a big block Chevy pump that bolts to adapters. Engine is going into a 37 Chrysler coupe. A 392 would be different in a Demon!