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Latest W2 heads
#1196077
03/12/12 11:15 PM
03/12/12 11:15 PM
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Joined: Jan 2003
Posts: 18,066
S.E. Michigan
ZIPPY
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MP still makes W2 heads, seems like the primary customers are sportsman circle track racers? Though aluminum is the rage these days, I dunno....W2 heads look to be just as viable as they ever were.
Haven't been able to get any flow data yet, but these look nicer than the previous ones I have worked with.
Can't find anything ugly that I don't like in the castings, machine work looks clean and so on. Looking for differences new vs. old....if anything the castings have more of a "squared off" appearance on the outer walls of the intake ports (looks like more material?). The deck surface also appears slightly thicker to me than the last ones I had, but that's just from memory.
One thing that stand out...this is one of those oddball parts that the casting number matches the part number, which almost never happens. These are the 769s.
Anyway I got a chance to check them out and maybe you'd like to see them too.
I'm sorry my camera skills kinda suck for getting shots of the bowls...I tried, but the pics of those areas didn't turn out well.
Last edited by ZIPPY; 03/12/12 11:17 PM.
Rich H.
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Re: Latest W2 heads
[Re: ZIPPY]
#1196078
03/12/12 11:20 PM
03/12/12 11:20 PM
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Joined: Jan 2003
Posts: 18,066
S.E. Michigan
ZIPPY
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Terrible shot of an intake bowl. Sorry.
I gave up trying to get a good shot of the exhaust.
Rich H.
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Re: Latest W2 heads
[Re: ZIPPY]
#1196080
03/12/12 11:24 PM
03/12/12 11:24 PM
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Joined: Jan 2003
Posts: 18,066
S.E. Michigan
ZIPPY
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exhaust, pretty much what you would expect to see
Rich H.
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Re: Latest W2 heads
[Re: ZIPPY]
#1196081
03/12/12 11:29 PM
03/12/12 11:29 PM
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Joined: Jan 2003
Posts: 18,066
S.E. Michigan
ZIPPY
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Foundry mark. Looks just like the one on a few recent engine blocks, apparently they do some nice work there.
Sorry for the lack of gory details, maybe somebody has flow tested them and can post up...I have not taken the time to ask or look, to be honest.
I mostly intended this as a "hey do you remember them?" kind of deal, and thought I would mention there are some new ones out now.
Rich H.
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Re: Latest W2 heads
[Re: Labratt]
#1196083
03/12/12 11:36 PM
03/12/12 11:36 PM
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Joined: Jan 2003
Posts: 18,066
S.E. Michigan
ZIPPY
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Yes sir, that is indeed a granite surface plate  good eye!
Rich H.
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Re: Latest W2 heads
[Re: Brian Hafliger]
#1196085
03/13/12 09:01 AM
03/13/12 09:01 AM
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Joined: Jan 2003
Posts: 18,066
S.E. Michigan
ZIPPY
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Yeah, maybe slightly?
I would trust your opinion on that more than my own!
It's hard to say with any authority because I don't have the old ones around to compare them to anymore...and I'm sure not enough of an expert with them to "remember" the shape. Heck I can hardly remember what I had for lunch yesterday...
Rich H.
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Re: Latest W2 heads
[Re: Dragula]
#1196087
03/13/12 10:12 AM
03/13/12 10:12 AM
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Joined: Jan 2003
Posts: 18,066
S.E. Michigan
ZIPPY
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P5249769 the price is 656 retail, and there looks to be
94 of them available in the depot system.
Rich H.
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Re: Latest W2 heads
[Re: dizuster]
#1196091
03/13/12 01:49 PM
03/13/12 01:49 PM
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Joined: Apr 2007
Posts: 2,030
Trumbull,CT.
jim sciortino
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Quote:
As I understand it, they are not all that much better then an Eddy head.
So as a comparison they are a little better. But heavier, use a special intake/rockers, and cost more (quick look put these in the $1100 bare range).
Not too hard to understand why not too many people run them anymore based on that.
I think more circle track guys run them because some rules force "iron heads" on the teams.
The Eddys are a nice, affordable street/mild performance head, but I would run a W-2 over the Eddy in a race effort where cost is not a factor.
I've seen W-2s go 320+ with good air speed and a 15* closed chamber W-2 on a 48* block is no contest, especially if the right guy does the port, chamber and intake work.
Plus, with a little grinding, you can tell the brand Xers they just got drilled by an all iron 340. 
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Re: Latest W2 heads
[Re: jim sciortino]
#1196092
03/13/12 02:29 PM
03/13/12 02:29 PM
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Joined: May 2004
Posts: 12,534
Taxes & Virus's R-US, NY
Dragula
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Quote:
Quote:
As I understand it, they are not all that much better then an Eddy head.
So as a comparison they are a little better. But heavier, use a special intake/rockers, and cost more (quick look put these in the $1100 bare range).
Not too hard to understand why not too many people run them anymore based on that.
I think more circle track guys run them because some rules force "iron heads" on the teams.
The Eddys are a nice, affordable street/mild performance head, but I would run a W-2 over the Eddy in a race effort where cost is not a factor.
I've seen W-2s go 320+ with good air speed and a 15* closed chamber W-2 on a 48* block is no contest, especially if the right guy does the port, chamber and intake work.
Plus, with a little grinding, you can tell the brand Xers they just got drilled by an all iron 340.
X2
+300cfm, they are the best head for the money...
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Re: Latest W2 heads
[Re: ZIPPY]
#1196093
03/13/12 02:57 PM
03/13/12 02:57 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
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Master
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Romeo MI
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They look like they have more meat in the top of the runner so it could be moved up higher... I dont recall the top of the runner being flush with the VC rail 
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Re: Latest W2 heads
[Re: dogdays]
#1196097
03/13/12 06:01 PM
03/13/12 06:01 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
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Master
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Romeo MI
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I have a new set of W-2 in the shop(prior to this latest version) that I plan on porting but havent got around to it... I also have a set on my 396 ci thats in the P right now... I ported those also but I didnt go all out and they flow 305 at 600... I have just about enough parts(lacking rods) to build another W-2 engine for something... dont know what yet
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Re: Latest W2 heads
[Re: w2dak394]
#1196100
03/14/12 10:42 AM
03/14/12 10:42 AM
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Joined: Jan 2003
Posts: 18,066
S.E. Michigan
ZIPPY
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W2's since around the late '90s have been set up for pushrod oiling, or at least that was design intent. If I understand correctly circle track racers requested that change to be made for a long time prior.
I'm sure somebody has a set from the interim time period that are not set up that way and would debate that....I've heard of them before. As with all things Mopar: never say never...
That design does force the builder into more expensive rocker arms like TD and so on, but that style of rocker usually cures enough other potential issues it's worth the change.
Rich H.
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Re: Latest W2 heads
[Re: dusturbd340W5]
#1196102
03/14/12 09:41 PM
03/14/12 09:41 PM
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Joined: Jan 2003
Posts: 18,066
S.E. Michigan
ZIPPY
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Aha, thanks-I see it now.
Thanks for pointing that out.
Next chance I get in the shop I will dig those heads out and see what's up.
If there were any efforts made to make them work with the old rockers (the only reason for the oil hole) then we need to know about that. Far as I know they are supposed to be TD only but maybe I am missing something.
Rich H.
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Re: Latest W2 heads
[Re: ZIPPY]
#1196103
03/14/12 10:46 PM
03/14/12 10:46 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
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Romeo MI
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Quote:
Aha, thanks-I see it now.
Thanks for pointing that out.
Next chance I get in the shop I will dig those heads out and see what's up.
If there were any efforts made to make them work with the old rockers (the only reason for the oil hole) then we need to know about that. Far as I know they are supposed to be TD only but maybe I am missing something.
that is weird... all the w-2s I've seen used shaft
oiling and yours have one of each
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Re: Latest W2 heads
[Re: ZIPPY]
#1196104
03/14/12 10:51 PM
03/14/12 10:51 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
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Romeo MI
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Those are so called w-2 race heads but even the stands look tall... almost as tall as the econo but without the cradle in the stands
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Re: Latest W2 heads
[Re: HardcoreB]
#1196106
03/15/12 11:41 AM
03/15/12 11:41 AM
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Joined: Jan 2003
Posts: 18,066
S.E. Michigan
ZIPPY
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Haven't figured it out yet  Easiest way to get where I need to go would be to get my hands on some of the supporting parts and mock them up, but I don't have anything. I've hoarded big block stuff forever but don't have anything for a small block  Will do some asking around.
Rich H.
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Re: Latest W2 heads
[Re: HardcoreB]
#1196108
03/15/12 04:49 PM
03/15/12 04:49 PM
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Joined: Jan 2003
Posts: 18,066
S.E. Michigan
ZIPPY
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Practically never go there, maybe once or twice a year tops. But if shipping is an option, pls feel free to PM or call and I'll hook everything up Thanks for the offer, regardless of how it works out  Did some more detective work and it appears there is a possibility one head is machined to the old spec for old rockers, but I don't have an answer for the other one. Hopefully 4 or 5 more phone calls/emails tomorrow will get us what we need.
Rich H.
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Re: Latest W2 heads
[Re: ZIPPY]
#1196109
03/15/12 05:03 PM
03/15/12 05:03 PM
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Joined: Jun 2010
Posts: 3,112
LONG ISLAND
fishy340
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Quote:
exhaust, pretty much what you would expect to see
i hope they dont leak like the other castings,2nd head bolt in near the w2 marking,is where they took meat away from the casting that caused leaks last time 
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Re: Latest W2 heads
[Re: dizuster]
#1196111
07/10/12 01:04 AM
07/10/12 01:04 AM
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Joined: Aug 2006
Posts: 2,144
junction city oregon
viperblue72
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Quote:
As I understand it, they are not all that much better then an Eddy head.
So as a comparison they are a little better. But heavier, use a special intake/rockers, and cost more (quick look put these in the $1100 bare range).
Not too hard to understand why not too many people run them anymore based on that.
I think more circle track guys run them because some rules force "iron heads" on the teams.
Any time you get rid of the pushrod pinch on a sbm it is gonna run better, regardless of flow #s even. I personally believe a ported w2 is gonna outperform a ported edelbrock very easily.
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Re: Latest W2 heads
[Re: viperblue72]
#1196112
07/10/12 08:33 AM
07/10/12 08:33 AM
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Joined: Jan 2003
Posts: 18,066
S.E. Michigan
ZIPPY
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Best as I've been able to determine, the one with an oil hole was a preproduction oddball and was not really intended for public consumption. Sorry to cause any confusion by posting a pic of it....
I finally got the chance to check out some regular production newer 769s and they don't have the hole (and they're not supposed to have it, so I guess that is a good thing).
The ones pictured are the 65cc NASCAR spec, the part number ends in 769, originally intended for 59 degree lifter angle.
Rich H.
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Re: Latest W2 heads
[Re: ZIPPY]
#1196113
07/10/12 02:01 PM
07/10/12 02:01 PM
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Joined: Dec 2003
Posts: 3,957
West Coast, CA
Troy
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Hi Rich...hope all is well. Why would they do that?? Why get rid of the shaft mounted oiling?? You can always modify the oiling system and turn it into pushrod oiling BUT you can not go in the other direction. Personality I like the shaft mounted oiling for a few reasons and on a street/strip engine it is by far easier. To me it is better to give the customer many options and let them decide what direction they want to go in and not force them to do something or buy something that they already have. I know having two part numbers could be a pain but we are talking about one hole.... one machining process...offer that head in two versions, with or without shaft mounted oiling. sorry but just my  As for the Edelbrock lovers out there.... I'm sorry but W2s are a wonderful head and yes they are iron but think about that for a minute... Run less compression and make more power. This means a lighter piston. Much better intake and exhaust runner design. Out of the box better flowing on both intake and exhaust ports. I'm well aware of the draw backs of the W2 and to me there is not that many  . Cost is a big one when your going from a running engine and want to adapt over to a W2 setup. If your staring from scratch you have to buy rockers, intake and headers anyway. If you want to keep things simple the Edelbrock heads are hard to beat and they have a place in engine building. I do think there are some better options out there and that is where W2 can be fun!!
....there is nothing like driving my 1968 Hemi Dart around town and having people looking at you like you're nuts!!
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Re: Latest W2 heads
[Re: MR_P_BODY]
#1196114
07/10/12 02:26 PM
07/10/12 02:26 PM
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Joined: Nov 2007
Posts: 1,600
Alberta Canada
StrokerAspen
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Quote:
Quote:
Terrible shot of an intake bowl. Sorry.
I gave up trying to get a good shot of the exhaust.
Filled in bowl, eh???? Is that what I'm seeing?
HAH! Brian said "eh"... You sure your not part Canadian?
Quote:
They look like they have more meat in the top of the
runner so it could be moved up higher... I dont recall
the top of the runner being flush with the VC rail
Looks like it to me too. Good catch. My Econo's don't have that much casting above the runners...
-Kenny
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Re: Latest W2 heads
[Re: Troy]
#1196115
07/10/12 02:44 PM
07/10/12 02:44 PM
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Joined: Jan 2003
Posts: 18,066
S.E. Michigan
ZIPPY
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As the legend was passed down to me, many years ago the sportsman Nascar racers complained to Mopar to get rid of the shaft oiling, Mopar finally gave in and did it. They went on about how it was too much extra work to cut the heads for TD rockers, nobody wanted to use the old stuff anymore and why couldn't the heads be made that way to begin with. And since they are the primary customers for that 769 head, they did have a good point.
That's not to say nobody at MP likes shaft rockers...Back in '07, management was getting set for the econo head to make a comeback. There were two PN variants and they're listed in the 2007 catalog on page 88, marketed as "W2 Classic". Unfortunately they were ahead of their time: more research revealed the castings needed to be retooled, and that was the last I heard of those two new part numbers. They were only a blip in one catalog; none were ever produced in that timeframe and they come up ns7 now.
I had assumed (incorrectly) the W2 retool would be part of the huge push in '07-'08 that resulted in rework of hemi/RB wedge, LA/R3, aluminum and iron hemi heads,iron max wedge heads, the intro of the aluminum 452/straight plug rpm and stageVII/Victor and so on....but it was not in the cards. It is interesting how it worked out.
Personally I would like to see a shaft oiled W2 available but am not sure how it would sell?
Rich H.
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Re: Latest W2 heads
[Re: pittsburghracer]
#1196118
07/11/12 02:37 AM
07/11/12 02:37 AM
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Joined: Jan 2003
Posts: 2,936
Finalnd, Perkele
jyrki
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Finalnd, Perkele
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The set I have in the garage are closede chambers, have to check the casting and part numbers. They both have the oil holes, I have HS rockers for tehm too but haven't even trial fitted them, so don't know wether they'll fit or not.
Plynouth VIP '67 TT IC EFI
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Re: Latest W2 heads
[Re: jim sciortino]
#1196119
07/11/12 10:03 AM
07/11/12 10:03 AM
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Joined: Nov 2007
Posts: 1,600
Alberta Canada
StrokerAspen
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Quote:
Plus, with a little grinding, you can tell the brand Xers they just got drilled by an all iron 340.
Funny you mention that. That prettymuch happened with my car last year. Lined up with a procharged mustang at a street car shoot out. Before we raced, We both asked questions about each other’s cars. I told him, it was an all iron small block, with 3.23 gears, and an 8.5” slick. All true.
http://www.youtube.com/watch?v=8-PO1bCE3...ture=plpp_video
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Re: Latest W2 heads
[Re: StrokerAspen]
#1196120
07/11/12 05:14 PM
07/11/12 05:14 PM
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Joined: Aug 2007
Posts: 498
El Dorado Ca
65signet
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mopar
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El Dorado Ca
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Iron heads run better then alum in a 10.0 comp motor JMO. we are going back to iron on my daughter's 340, takes forever to warm up motor, and does not run good until about 30min of driving.
1965 Plymouth Barracuda 273 M/SA
1970 Plymouth Duster 360/904 10.60s with J heads
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Thanks! Randy B. BTW...I sent you a PM about your Mopar presents! THANKS!! 
