mopar p-5 sb hemi heads

phoenix · Post by **phoenix** » Tue Feb 01, 2005 12:24 pm

Does anybody have any info on these.I know they went through a redesign from from when they were first introduced in the pro stock truck series.ie..spark plugs through the valve covers,different valve cover,more robust casting. My question centers around flow #'s, port volume,combustion chamber size,valve size.Who is porting them?Is there a reason you dont hear about these heads? Are they junk or can you get the same performance out of a w9 rp? Thanks guys.Don, great forum!

cboggs · Post by **cboggs** » Tue Feb 01, 2005 1:08 pm

Don,

give me an e-mail curtis@cboggs.com or a call at the shop, ..
703-541-0565

If I had my choice I'd look very hard at the W9 rp's more for valve train
stability over the P-5. or put the P-5 valve train on a spintron, ..

Curtis

shawn · Post by **shawn** » Tue Feb 01, 2005 8:21 pm

We used CFE for all of our prostock truck heads. He has a pretty good base to work from with them. Give him a call.
shawn

shawn · Post by **shawn** » Tue Feb 01, 2005 8:43 pm

Alan still has some casting left over. Check here-

http://www.pattersonracing.com/

Shawn

Darin Morgan · Post by **Darin Morgan** » Wed Feb 02, 2005 10:51 am

shawn wrote:We used CFE for all of our prostock truck heads. He has a pretty good base to work from with them. Give him a call.
shawn

I would call Foltz as well. He is the only one out there I would trust to do those heads.

cboggs · Post by **cboggs** » Wed Feb 02, 2005 1:32 pm

Darin Morgan wrote:
shawn wrote:We used CFE for all of our prostock truck heads. He has a pretty good base to work from with them. Give him a call.
shawn
I would call Foltz as well. He is the only one out there I would trust to do those heads.

Yea I would agree, . I've done some of W8, W9 & working on W9 rp, ..
but not too much experience with the P-5

Curtis

airflowdevelop · Post by **airflowdevelop** » Wed Feb 02, 2005 3:21 pm

Can't go wrong with foltz...

His number 586-773-6310

Dennis

phoenix · Post by **phoenix** » Wed Feb 02, 2005 4:41 pm

thanks guys. shane

guest · Post by **guest** » Sat Feb 05, 2005 8:31 pm

I would call Foltz as well. He is the only one out there I would trust to do those heads.[/quote]

Really?...........Interesting

cboggs · Post by **cboggs** » Sun Feb 06, 2005 12:23 pm

Darin,

I'm wondering, .. what is it about that head that you think is so difficult
or different??

Is it just the raw form of the casting, . .. like a W9rp, .. where you have
to cut all the guide locations, seat locations, .. CnC a chamber in, etc.?

I've only done limited work with them, but didn't think it was any more
difficult then any other ground up cylinder head engineering project.

Curtis

Darin Morgan · Post by **Darin Morgan** » Sun Feb 06, 2005 3:36 pm

cboggs wrote:Darin,

I'm wondering, .. what is it about that head that you think is so difficult
or different??

Is it just the raw form of the casting, . .. like a W9rp, .. where you have
to cut all the guide locations, seat locations, .. CnC a chamber in, etc.?

I've only done limited work with them, but didn't think it was any more
difficult then any other ground up cylinder head engineering project.

Curtis

Bottom line, I cant do everything nor do I wish too. I have no experience with those heads so I would have to spend a lot of time ( which I don't have) and money to do them. I am doing the P/S stuff and the PS/B stuff along with many other projects so I just don't want to give something like that a half assed effort and not have it run fast. Its all or nothing. I refer many people to Foltz. If I cant do it I usually tell them to go there.

cboggs · Post by **cboggs** » Sun Feb 06, 2005 5:01 pm

Oh, .. I thought there was something strainge about them mechanically, .. .. ..

Yea I understand about time, or a lack of, .. .. we can only do so much.
I use Mike Chapman for CnC and machine work some times, ... like
putting chambers in my W9rp project, .. good work & saves time.

heck Carl has some great Pro stock, Chevy comp & mopar comp stuff, ..
I don't see how HE finds all the time to make all that stuff run great.

Cheers,

Curtis

jdeleon · Post by **jdeleon** » Sun Feb 06, 2005 8:36 pm

Darin,
Just curious,
[I am doing the P/S stuff and the PS/B stuff along with many other projects ]
PS/B stuff as in Harley or Import?[/quote]

Darin Morgan · Post by **Darin Morgan** » Sun Feb 06, 2005 9:59 pm

jdeleon wrote:Darin,
Just curious,
[I am doing the P/S stuff and the PS/B stuff along with many other projects ]
PS/B stuff as in Harley or Import?

[/quote]

I am doing heads for Schumacher's PS/B team. I have been working with them for about eight months now. I managed to pick them up 30cfm and about 40ft/sec mean velocity. The newest heads should be on the bikes in about a month. They are a major redesign over what they have now. There crew chief and engine builder, Steve Tartaglia is awesome to work with and he is very smart. He does what ever it takes and the results from all his ( and the other team members) hard work will soon be apparent. There is a lot left in those bikes. They will be in the six's by mid season if not earlier. I think they are capable of low 6.90's by years end. Those engines are 92cid and produce 315hp. pretty cool ha? especially since there a hemispherical two valve head!

I would LOVE to get my hands on a set of those Harley PS/B heads. I would even do it for nothing!

Post by **maxracesoftware** » Mon Feb 07, 2005 2:52 am

simulated 6.950 ET ProBike run
60= 1.0939 65.6041
330= 2.9327 129.3310
660= 4.4629 160.1692
1000= 5.8016 183.1209
1320= 6.9500 195.0183
Tire Friction Coeff= 2.5833

------ Front Tire ------
RollOut Distance Data
Ft ET MPH GForce
-1 -0.1551 0.0000 0.0000
0 0.0000 8.7907 2.5833

with the "extra" new HP , the next problem will be to apply
it to "consistently" hook the Bike to a 1.070 or better 60 Ft
and 6.90's might become common place ??

Don Terrill’s Speed-Talk

mopar p-5 sb hemi heads

mopar p-5 sb hemi heads

p-5 hemi

Darin

Re: Darin