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Re: D5 Hemi head [Re: 1967_GTX_440] #2220434
12/24/16 09:02 PM
12/24/16 09:02 PM
Joined: Jan 2012
Posts: 2,285
Stuttgart, Arkansas
rickseeman Offline
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That's a D4.


2011 Drag Pak Challenger
Re: D5 Hemi head [Re: 1967_GTX_440] #2220435
12/24/16 09:12 PM
12/24/16 09:12 PM
Joined: Jan 2012
Posts: 2,285
Stuttgart, Arkansas
rickseeman Offline
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D4's are NASCAR heads. Never were used for much else because they are cast iron and drag race people want the light weight of aluminum. Tom Hoover said those were the dyno champs. That casting date makes you fantasize that your are in Petty's Superbird at Daytona.


2011 Drag Pak Challenger
Re: D5 Hemi head [Re: rickseeman] #2264191
03/06/17 07:51 AM
03/06/17 07:51 AM
Joined: Jul 2016
Posts: 10
Luzern, Switzerland
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1967_GTX_440 Offline OP
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Originally Posted By rickseeman
This is what they look like. Notice how the exhaust is very long. And they use their own aluminum stands.

Bear in mind that D-5's also take a different block (the pushrods come in a little different) as well as different pistons (because of the shallow chamber), pushrods (longer), plug tubes (longer), intake manifold (round ports), headers (round ports as well as a different pattern), valve covers and intake/exhaust/head gaskets. And it may not fit in your car because it's wider. I love them but if you are wanting to get one of those running you are a better man than me.


Would you have a set for sale?

currently I've a old KB block going to the machine shop that need to get repaired and I was going to modify it as well to work with the D5 heads, but I'm wondering if I should forget it and take a less exotic path.



1967 Plymouth GTX - 440, manual 4 speed

1972 Plymouth Barracuda - work in progress...
1969 Dodge Dart - 318, ford 9" - need a lot of work
1981 VW Beetle - all original, only 3k miles
1973 VW T1 Bus - restored
1968 Ford Mustang - SOLD
1997 Dodge Neon - SOLD
1998 Dodge Neon - SOLD
Re: D5 Hemi head [Re: 1967_GTX_440] #2264257
03/06/17 12:00 PM
03/06/17 12:00 PM
Joined: Jan 2012
Posts: 2,285
Stuttgart, Arkansas
rickseeman Offline
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I've had several sets. I recently sold the last set that I had. They were NOS. If you decide to go that way I still have some plug tubes, intake gaskets and maybe some other small items.

I would suggest a less exotic path.


2011 Drag Pak Challenger
Re: D5 Hemi head [Re: rickseeman] #2264293
03/06/17 01:03 PM
03/06/17 01:03 PM
Joined: Jan 2003
Posts: 15,976
Chilliwack B.C. Canada
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RUNCHARGER Offline
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I went through a few sets of antique non street hemi heads until I smartened up and just ordered new Stage V's years ago. I found that repairing and reworking old Hemi heads was more expensive than just using new heads. JMHO.


Sheldon
Re: D5 Hemi head [Re: RUNCHARGER] #2264781
03/07/17 10:30 AM
03/07/17 10:30 AM
Joined: Jul 2016
Posts: 10
Luzern, Switzerland
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1967_GTX_440 Offline OP
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Originally Posted By rickseeman
I've had several sets. I recently sold the last set that I had. They were NOS. If you decide to go that way I still have some plug tubes, intake gaskets and maybe some other small items.

I would suggest a less exotic path.


thanks. I'll make my mind in the next days and if I follow my crazy idea and I might contact you to check what you'd have.

Originally Posted By RUNCHARGER
I went through a few sets of antique non street hemi heads until I smartened up and just ordered new Stage V's years ago. I found that repairing and reworking old Hemi heads was more expensive than just using new heads. JMHO.


the thing is that I'd like to build a pro stock car the way they were back than, or as close as I can. I've a 70's KB alu block, a pair of D5 heads and a set of old dominators.

and when that is done that might go in the 1969 dart that I've.

I'm not in a hurry to finish, I'm just starting it, and because the block is going to the machine shop for repair, I've to decide if I modify it for the D5 or go for another set of heads.

I've contacted the guys at rockerarms.com and they said that they might be able to build a set of rocker arms for me.

but yeah, might end up using some different heads, at least for now.



1967 Plymouth GTX - 440, manual 4 speed

1972 Plymouth Barracuda - work in progress...
1969 Dodge Dart - 318, ford 9" - need a lot of work
1981 VW Beetle - all original, only 3k miles
1973 VW T1 Bus - restored
1968 Ford Mustang - SOLD
1997 Dodge Neon - SOLD
1998 Dodge Neon - SOLD
Re: D5 Hemi head [Re: 1967_GTX_440] #2264857
03/07/17 12:48 PM
03/07/17 12:48 PM
Joined: Jan 2012
Posts: 2,285
Stuttgart, Arkansas
rickseeman Offline
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It's not just rocker arms. You need the whole rocker assembly. D-5 rockers can be found. You just have to look hard. There are a lot of other parts too. It would be a lot of work if you were in the US. Worse where you are.


2011 Drag Pak Challenger
Re: D5 Hemi head [Re: rickseeman] #2264929
03/07/17 02:19 PM
03/07/17 02:19 PM
Joined: Jul 2016
Posts: 10
Luzern, Switzerland
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1967_GTX_440 Offline OP
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Originally Posted By rickseeman
It's not just rocker arms. You need the whole rocker assembly. D-5 rockers can be found. You just have to look hard. There are a lot of other parts too. It would be a lot of work if you were in the US. Worse where you are.


You convinced me, I'll put this idea aside, and probably go with a Stage V. I'll still keep hunting and collecting parts, maybe one day I'll be able to build it.



1967 Plymouth GTX - 440, manual 4 speed

1972 Plymouth Barracuda - work in progress...
1969 Dodge Dart - 318, ford 9" - need a lot of work
1981 VW Beetle - all original, only 3k miles
1973 VW T1 Bus - restored
1968 Ford Mustang - SOLD
1997 Dodge Neon - SOLD
1998 Dodge Neon - SOLD
Re: D5 Hemi head [Re: 1967_GTX_440] #2265018
03/07/17 04:50 PM
03/07/17 04:50 PM
Joined: Jan 2012
Posts: 2,285
Stuttgart, Arkansas
rickseeman Offline
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I am not sure of the age of your KB block and how the steam holes are placed. If they are they same as KB does it now you can tell Stage V that and they will drill the heads to that steam hole pattern and KB has Cometic head gaskets for that.


2011 Drag Pak Challenger
Re: D5 Hemi head [Re: rickseeman] #2265497
03/08/17 10:50 AM
03/08/17 10:50 AM
Joined: Jul 2016
Posts: 10
Luzern, Switzerland
1
1967_GTX_440 Offline OP
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Originally Posted By rickseeman
I am not sure of the age of your KB block and how the steam holes are placed. If they are they same as KB does it now you can tell Stage V that and they will drill the heads to that steam hole pattern and KB has Cometic head gaskets for that.


the block is from the mid 70's I believe, I'm not sure what are the differences to a more recent KB.

I was googling about the Stage V heads, and I've found that the have different models, like: replacement, and millennium.

I was checking where I could get those as well, I'm looking for a place where the can do some work on it as well.

do you guys have any preference, for any of those locations?
- Ray Barton
- Arruzza HP
- Modern Cylinder Head

I might get my rotating assembly from Ray Barton, mostly because if their camshaft and lifters.



1967 Plymouth GTX - 440, manual 4 speed

1972 Plymouth Barracuda - work in progress...
1969 Dodge Dart - 318, ford 9" - need a lot of work
1981 VW Beetle - all original, only 3k miles
1973 VW T1 Bus - restored
1968 Ford Mustang - SOLD
1997 Dodge Neon - SOLD
1998 Dodge Neon - SOLD
Re: D5 Hemi head [Re: 1967_GTX_440] #2265510
03/08/17 11:13 AM
03/08/17 11:13 AM
Joined: Jan 2012
Posts: 2,285
Stuttgart, Arkansas
rickseeman Offline
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Arruzza has closed. Millennium heads are too complicated for your application. Barton can make enough power without them. Lay a stock head gasket on your deck and see how the steam holes line up. If I were you I would buy all the stuff from Ray Barton.


2011 Drag Pak Challenger
Re: D5 Hemi head [Re: 1967_GTX_440] #2265562
03/08/17 12:56 PM
03/08/17 12:56 PM
Joined: Jan 2012
Posts: 2,285
Stuttgart, Arkansas
rickseeman Offline
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By the way there is as good chance that a D-5 wouldn't even fit in the 69 Dart you are talking about. A D-5 is very wide.


2011 Drag Pak Challenger
Re: D5 Hemi head [Re: rickseeman] #3007477
01/21/22 05:50 AM
01/21/22 05:50 AM
Joined: Nov 2020
Posts: 348
Isle of Sheeps
Gtxxjon Offline
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Gtxxjon  Offline
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Isle of Sheeps
Wonderful info from knowledgeable hemi Guys!

The D5 was a disaster for Harry Weslake indeed.
He had the idea that the hemi needed a smaller ‘round port’ intake design.
History has proved this to be ‘very wrong’... fan

But I am very interested in the Weslake story and would hope to one day...
Piece together a complete D5 for my Weslake ‘Mopar’ collection.

I have some iron hemi parts from his old ‘Rye’ Workshop.
But all the D5 hemi parts were scattered ‘far and wide’?

Best wishes from Limey John Kent UK

Last edited by Gtxxjon; 01/21/22 05:50 AM.

Carpe diem, quam minimum credula postero, thanx Horace!

There’s no point trying to fix stuff that ain’t broke,,, 'but if ain’t broke',,, you is not trying hard enough...
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