Re: MP stage v head ?
[Re: moparx]
#2576367
11/09/18 02:49 PM
11/09/18 02:49 PM
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Joined: Jan 2003
Posts: 14,492 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,492
So. Burlington, Vt.
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I have a set of “standard”(original style, raised std port) stage 6’s here that have that casting number.
The “part number” for them is P4529335.
Not including the Chapman stage 6’s, there are 4 different versions of the stage 6.
-Original stage 6(raised std port, straight plugs) -MW stage 6 with angled plugs(raised MW port, small kidney shaped chamber, needs .485 offset intake rocker) -MW stage 6 with straight plugs(MW raised port, std heart shaped chamber, straight plugs, .485 offset intake rocker) -street stage 6(later called the aluminum commando head, non-raised std intake ports, straight plug)
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: MP stage v head ?
[Re: fast68plymouth]
#2576391
11/09/18 03:21 PM
11/09/18 03:21 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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I have a set of “standard”(original style, raised std port) stage 6’s here that have that casting number.
The “part number” for them is P4529335.
Not including the Chapman stage 6’s, there are 4 different versions of the stage 6.
-Original stage 6(raised std port, straight plugs) -MW stage 6 with angled plugs(raised MW port, small kidney shaped chamber, needs .485 offset intake rocker) -MW stage 6 with straight plugs(MW raised port, std heart shaped chamber, straight plugs, .485 offset intaker rocker) -street stage 6(later called the aluminum commando head, non-raised std intake ports, straight plug) I've done several sets of the Stage VI MW angle plug heads. They are a giant PITA to make work, but they can make power. They suck to port for sure.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: MP stage v head ?
[Re: moparx]
#2576392
11/09/18 03:22 PM
11/09/18 03:22 PM
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Joined: Jan 2003
Posts: 14,492 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,492
So. Burlington, Vt.
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As Brad said, std port intake on spacers on an RB block, std offset rockers and straight plugs = original stage 6.
And ditto on the seats.
The heads only come with intake seats that are 2.187”........ and don’t go very deep. If they haven’t been replaced already, they need to be.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: MP stage v head ?
[Re: fast68plymouth]
#2576393
11/09/18 03:24 PM
11/09/18 03:24 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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As Brad said, std port intake on spacers on an RB block, std offset rockers and straight plugs = original stage 6.
And ditto on the seats.
The heads only come with intake seats that are 2.187”........ and don’t go very deep. If they haven’t been replaced already, they need to be. Why Chrysler used seas like that I have no idea. They did it on the W-5 heads too. The first step on heads like that is a seat replacement with a quality ductile iron seat.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: MP stage v head ?
[Re: fast68plymouth]
#2576408
11/09/18 03:44 PM
11/09/18 03:44 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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LOl I remember that thread
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: MP stage v head ?
[Re: moparx]
#2576424
11/09/18 04:15 PM
11/09/18 04:15 PM
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Joined: Jan 2003
Posts: 14,492 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,492
So. Burlington, Vt.
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You’d still need to use the spacer plates with the x-ram intake, and without the heads and spacer opened up to MW size, there will be a pretty sizable port mismatch.
I had a customer who wanted to do the same thing intake wise, really just for the looks........ I just opened up a set Stealths. The report I got was it worked fine.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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