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PS Hemi Questions?
#884789
12/20/10 10:45 PM
12/20/10 10:45 PM
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Joined: Jan 2003
Posts: 2,813
Blue Ridge, VA
Plumb Wired
OP
master
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OP
master
Joined: Jan 2003
Posts: 2,813
Blue Ridge, VA
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Did all of the PS Hemis use a compacted graphite block? What should I look for when buying one? Are parts such as blocks and heads readily available? Where besides RJ to look for one?
Thanks,
Mike Gray
RIP Monte Smith
aka: OutlawFish
'98 Bickel Dodge Dakota PST
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Re: PS Hemi Questions?
[Re: Plumb Wired]
#884790
12/21/10 10:30 AM
12/21/10 10:30 AM
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Joined: Oct 2008
Posts: 235
Glendale, AZ
Dave W
enthusiast
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enthusiast
Joined: Oct 2008
Posts: 235
Glendale, AZ
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I might be wrong but, I believe that the 5-cam bearing blocks were not cp and the nine bearing blocks were. When buying heads you must be careful about buying heads that are either cracked or that are running the smaller 10mm spark plugs becuase they are limited on heat ranges (especially if you are going to be using a power adder).Hope this helps, if you are needing some parts I have some for sale that are in excellent condition! Brand new 5-cam bearing block with 14mm plug heades and matching intake. Also have crank, rods , pistons. 2 cams, .937 lifters, rocker arms , and valve covers. I purchased everything from Dave Nickens with plans on running boost with this combo (block, heads, and in take). Make me an offer, these parts must go!
Last edited by Dave W; 12/21/10 10:33 AM.
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Re: PS Hemi Questions?
[Re: 105630]
#884792
12/21/10 11:04 AM
12/21/10 11:04 AM
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Joined: Jan 2003
Posts: 2,813
Blue Ridge, VA
Plumb Wired
OP
master
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OP
master
Joined: Jan 2003
Posts: 2,813
Blue Ridge, VA
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Thanks for the replies.
Jimmy, I know Matt Hensley who works for Allen Johnson.
I've always been a small block guy, just trying to educate myself on a possible B1-PSO, Predator or Hemi combo in the future.
Mike Gray
RIP Monte Smith
aka: OutlawFish
'98 Bickel Dodge Dakota PST
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Re: PS Hemi Questions?
[Re: B1Fish540]
#884795
12/21/10 05:13 PM
12/21/10 05:13 PM
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Joined: Jan 2003
Posts: 1,624
Orange County, Ca.
B1CUDA
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,624
Orange County, Ca.
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If you are doing an N/A motor, than the PS Hemi is the best Mopar engine available. If you are going to be a doing a turbo deal, the BAE route is the only way to go. Parts are out there for the PS stuff, but, you have to be VERY careful who you are dealing with. The heads must have the 4 bolt stands, or you will be in "Valvetrain Hell" with the old 2 bolt stuff. I must say, almost 10K RPM on a 10.5 tire is kinda fun. 
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Re: PS Hemi Questions?
[Re: Get-X]
#884797
12/21/10 10:25 PM
12/21/10 10:25 PM
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Joined: Jan 2003
Posts: 1,624
Orange County, Ca.
B1CUDA
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,624
Orange County, Ca.
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Get-X - Yes the 2 bolt stuff had a bunch of issues with "Flexing". I have the very last set of heads that Jeg Coughlin was going to use, and, although they are the most current casting, they still require constant maintenance, but, than again, ANY motor that is revving to the moon, must have a consistent, and hopefully, stable valvetrain. 
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Re: PS Hemi Questions?
[Re: B1CUDA]
#884798
12/21/10 11:02 PM
12/21/10 11:02 PM
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Joined: Jul 2010
Posts: 3,502
SOUTH JERSEY
HEMIFRED
master
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master
Joined: Jul 2010
Posts: 3,502
SOUTH JERSEY
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Once I saw so many changes in block and heads is what stopped my uysing one
home of the
Sox and Martin Hemi Duster
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Re: PS Hemi Questions?
[Re: HEMIFRED]
#884802
12/22/10 01:14 AM
12/22/10 01:14 AM
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Joined: Feb 2006
Posts: 243
NJ
arc
enthusiast
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enthusiast
Joined: Feb 2006
Posts: 243
NJ
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Re: PS Hemi Questions?
[Re: arc]
#884803
12/22/10 01:16 AM
12/22/10 01:16 AM
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Joined: Feb 2006
Posts: 243
NJ
arc
enthusiast
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enthusiast
Joined: Feb 2006
Posts: 243
NJ
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Quote:
here is a pic of my head
the rockers are ww made for larry
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Re: PS Hemi Questions?
[Re: Get-X]
#884804
12/22/10 02:52 AM
12/22/10 02:52 AM
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Joined: Sep 2007
Posts: 2,584
sycamore,ohio
BobsProFab
master
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master
Joined: Sep 2007
Posts: 2,584
sycamore,ohio
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Quote:
Quote:
Get-X - Yes the 2 bolt stuff had a bunch of issues with "Flexing". I have the very last set of heads that Jeg Coughlin was going to use, and, although they are the most current casting, they still require constant maintenance, but, than again, ANY motor that is revving to the moon, must have a consistent, and hopefully, stable valvetrain.
I had heard that they had a lot of stability problems with the five cam bearing block which is why I held out for the nine bearing block. That change was supposed to have done away with a lot of shaft flex with the big springs that lead to a lot of the valvetrain issues they had.
No doubt the extra ribbing in the new head helped as well. I'm assuming they went to four bolt stands to broaden the frootprint and provide more surface area in which to spread out the load and help limit the movement.
the 5 cam bearing deal is good to about 9,800/10,000
over that is where they saw the cams go into the jump rope deal on the spin trons and did the 9 cam bearing blocks
Roy told me that they arent bad on valve trian parts if you only crank it 9,500, its 10,000 and above is when they start eating valve springs every 5 passes  my heads are like Marcs with the same stand setup with W/W rockers
also the springs are so much better now with PACs double spring vs the triples that can handle over a inch lift 
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Re: PS Hemi Questions?
[Re: Get-X]
#884812
12/22/10 01:54 PM
12/22/10 01:54 PM
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Joined: Aug 2006
Posts: 614
Michigan
Get-X
mopar
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mopar
Joined: Aug 2006
Posts: 614
Michigan
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Pete, did you guys ever get a torque plate for these yet?
'65 Belvedere
'68 GTX
'57 Dodge pickup
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Re: PS Hemi Questions?
[Re: PETE@BESTMACHINE]
#884816
12/22/10 08:02 PM
12/22/10 08:02 PM
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Joined: Jan 2003
Posts: 2,813
Blue Ridge, VA
Plumb Wired
OP
master
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OP
master
Joined: Jan 2003
Posts: 2,813
Blue Ridge, VA
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So what material are the blocks made from? cast, compacted graphite or aluminum?
Thanks again to all that have posted.
Mike Gray
Last edited by OutlawFish; 12/22/10 08:03 PM.
RIP Monte Smith
aka: OutlawFish
'98 Bickel Dodge Dakota PST
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Well, I already took the plunge so I guess since I have it all I might as well assemble it and have some fun if I don't sell it. I even thought about turbo charging it but don't think it's the right engine for that. Wish me luck! 
