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MP stage v head ? #2576336 11/09/18 02:09 PM 11/09/18 02:09 PM
Joined: Sep 2003 Posts: 19,303 north of coder moparx OP "Butt Crack Bob"
moparx OP "Butt Crack Bob" Joined: Sep 2003 Posts: 19,303 north of coder	what size intake ports do these heads have ? max wedge size ? TIA as always.

Re: MP stage v head ? [Re: moparx] #2576338 11/09/18 02:10 PM 11/09/18 02:10 PM
Joined: Jan 2003 Posts: 14,490 So. Burlington, Vt. F fast68plymouth I Live Here
fast68plymouth I Live Here F Joined: Jan 2003 Posts: 14,490 So. Burlington, Vt.	Std size. 68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads

Re: MP stage v head ? [Re: moparx] #2576341 11/09/18 02:14 PM 11/09/18 02:14 PM
Joined: Jan 2003 Posts: 30,983 Oregon A AndyF I Win
AndyF I Win A Joined: Jan 2003 Posts: 30,983 Oregon	The old stage V heads were basically a cast iron 452 head with some minor modifications. It has been a long time since I looked at a set of those. I think Mopar added a little wall thickness in some areas but that was about it.

Re: MP stage v head ? [Re: AndyF] #2576353 11/09/18 02:31 PM 11/09/18 02:31 PM
Joined: Sep 2003 Posts: 19,303 north of coder moparx OP "Butt Crack Bob"
moparx OP "Butt Crack Bob" Joined: Sep 2003 Posts: 19,303 north of coder	andy, these are aluminum heads. part # is : 4532134 [but the 3's may be 8's ?]

Re: MP stage v head ? [Re: moparx] #2576355 11/09/18 02:34 PM 11/09/18 02:34 PM
Joined: Jan 2003 Posts: 30,983 Oregon A AndyF I Win
AndyF I Win A Joined: Jan 2003 Posts: 30,983 Oregon	I don't recall a Mopar aluminum Stage V head. Stage VI was an aluminum head.

Re: MP stage v head ? [Re: moparx] #2576364 11/09/18 02:46 PM 11/09/18 02:46 PM
Joined: Nov 2010 Posts: 1,397 Carson City, Nevada Biginchmopar pro stock
Biginchmopar pro stock Joined: Nov 2010 Posts: 1,397 Carson City, Nevada	Stage V = Iron Stage VI = Aluminum

Re: MP stage v head ? [Re: moparx] #2576367 11/09/18 02:49 PM 11/09/18 02:49 PM
Joined: Jan 2003 Posts: 14,490 So. Burlington, Vt. F fast68plymouth I Live Here
fast68plymouth I Live Here F Joined: Jan 2003 Posts: 14,490 So. Burlington, Vt.	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

Re: MP stage v head ? [Re: AndyF] #2576373 11/09/18 02:59 PM 11/09/18 02:59 PM
Joined: Sep 2003 Posts: 19,303 north of coder moparx OP "Butt Crack Bob"
moparx OP "Butt Crack Bob" Joined: Sep 2003 Posts: 19,303 north of coder	here are a couple of pics. maybe i don't know what i'm talking about. [wouldn't be the first time ! ] i shoulda done this in the first place.

Re: MP stage v head ? [Re: fast68plymouth] #2576378 11/09/18 03:03 PM 11/09/18 03:03 PM
Joined: Sep 2003 Posts: 19,303 north of coder moparx OP "Butt Crack Bob"
moparx OP "Butt Crack Bob" Joined: Sep 2003 Posts: 19,303 north of coder	fast, how can i tell what these are ? they have 2.250 intake & 1.8[?] exhaust valves.

Re: MP stage v head ? [Re: moparx] #2576388 11/09/18 03:17 PM 11/09/18 03:17 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH Taking time off to work on my car
BradH Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	They certainly look like the basic Stage VI w/ the RB intake spacers. The Crane rockers are standard-offset, and it's a standard M1 intake in the pics, so that should rule out being a MW version. Stage VI seat inserts are borderline wide enough for even a 2.19" valve; can't see a 2.25" fitting w/o replacing the inserts. Even then, those ports aren't likely going to benefit from a valve that size as small as they are.

Re: MP stage v head ? [Re: fast68plymouth] #2576391 11/09/18 03:21 PM 11/09/18 03:21 PM
Joined: Sep 2014 Posts: 4,457 Washington M madscientist master
madscientist master M Joined: Sep 2014 Posts: 4,457 Washington	Originally Posted By fast68plymouth 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

Re: MP stage v head ? [Re: moparx] #2576392 11/09/18 03:22 PM 11/09/18 03:22 PM
Joined: Jan 2003 Posts: 14,490 So. Burlington, Vt. F fast68plymouth I Live Here
fast68plymouth I Live Here F Joined: Jan 2003 Posts: 14,490 So. Burlington, Vt.	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

Re: MP stage v head ? [Re: fast68plymouth] #2576393 11/09/18 03:24 PM 11/09/18 03:24 PM
Joined: Sep 2014 Posts: 4,457 Washington M madscientist master
madscientist master M Joined: Sep 2014 Posts: 4,457 Washington	Originally Posted By fast68plymouth 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

Re: MP stage v head ? [Re: moparx] #2576398 11/09/18 03:33 PM 11/09/18 03:33 PM
Joined: Jan 2003 Posts: 14,490 So. Burlington, Vt. F fast68plymouth I Live Here
fast68plymouth I Live Here F Joined: Jan 2003 Posts: 14,490 So. Burlington, Vt.	Related reading: https://board.moparts.org/ubbthreads/ubbt...tml#Post2423900 68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads

Re: MP stage v head ? [Re: moparx] #2576400 11/09/18 03:34 PM 11/09/18 03:34 PM
Joined: Jan 2003 Posts: 17,832 S.E. Michigan ZIPPY I Live Here
ZIPPY I Live Here Joined: Jan 2003 Posts: 17,832 S.E. Michigan	VI, or 6. The visible number is the raw casting number, Last sold as machined/packaged P4529335. Originally std. port window. Could be almost anything now, though. https://board.moparts.org/ubbthreads/ubbthreads.php/ubb/showflat/Number/5240324/site_id/1#import https://board.moparts.org/ubbthreads/ubbt...html#Post323080 Rich H. Esse Quam Videri

Re: MP stage v head ? [Re: fast68plymouth] #2576408 11/09/18 03:44 PM 11/09/18 03:44 PM
Joined: Sep 2014 Posts: 4,457 Washington M madscientist master
madscientist master M Joined: Sep 2014 Posts: 4,457 Washington	Originally Posted By fast68plymouth Related reading: https://board.moparts.org/ubbthreads/ubbt...tml#Post2423900 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

Re: MP stage v head ? [Re: madscientist] #2576419 11/09/18 04:07 PM 11/09/18 04:07 PM
Joined: Sep 2003 Posts: 19,303 north of coder moparx OP "Butt Crack Bob"
moparx OP "Butt Crack Bob" Joined: Sep 2003 Posts: 19,303 north of coder	thanks guys ! i am looking at this engine for use in my charger. it's a 500", and seems to have reasonable parts. was thinking to replace the intake with an original, 62 MW intake and carbs. then, just a general refresh on the block. has an A&A trans with a RMVB, an aluminum drum setup, and 5 pinion planetaries included. available 3500 converter plus other parts. wife and i need a good day trip, and this is only 100mi away. owner has no problem tearing apart for a look see.

Re: MP stage v head ? [Re: moparx] #2576424 11/09/18 04:15 PM 11/09/18 04:15 PM
Joined: Jan 2003 Posts: 14,490 So. Burlington, Vt. F fast68plymouth I Live Here
fast68plymouth I Live Here F Joined: Jan 2003 Posts: 14,490 So. Burlington, Vt.	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

Re: MP stage v head ? [Re: moparx] #2576478 11/09/18 06:02 PM 11/09/18 06:02 PM
Joined: Jan 2003 Posts: 30,983 Oregon A AndyF I Win
AndyF I Win A Joined: Jan 2003 Posts: 30,983 Oregon	Stage VI heads have a variety of well known problems but some of them worked just fine. If it was me I'd look for evidence of any water leaks. See what the plugs and ports look like. Even if it ran great for the current owner the heads might develop a problem for you. Could still be a good deal if the price is right.

Re: MP stage v head ? [Re: AndyF] #2576778 11/10/18 02:13 PM 11/10/18 02:13 PM
Joined: Sep 2003 Posts: 19,303 north of coder moparx OP "Butt Crack Bob"
moparx OP "Butt Crack Bob" Joined: Sep 2003 Posts: 19,303 north of coder	i can't quite make out the number on those rockers. are they needle bearings or bushed ?

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