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Re: PSO Heads
[Re: MuscleMike]
#864238
11/29/10 02:39 PM
11/29/10 02:39 PM
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Joined: Jun 2003
Posts: 9,225
Charleston
sixpackgut
Drag Week Mod Champion
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Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
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Quote:
I guess I'll jump in and claify a few things. I have worked with Jeff on 2 different versions of a PSO head. One has Stock valve spacing and sizes (2.300/1.78) and stock valve angle(15 degrees). A drop on replacement if you will. The second is a MC version with 2.400,1.810 valve sizing and valve angle (15 degrees). Most of the time I use Jesel rockers when I build B1 headed engines.
The first few sets of PSO heads I did were completed in 2009. The story of the dragster that ran @ Monster Mopar on my web site competed in 2009.
Did I buy a set of machined heads from Best? Yup! I did earlier this year (2010) but it was NOT with the intention of "cloning" the head. I had a customer who was in a big rush and I could not get the raw castings, machine them and have the engine done in time for the customer. Chuck and Pete were selling machined heads very reasonable so to save time and get the customer out and going I used "their" design head. 2.400, 1.810 but I beleive it had a 13 or 14 degree valve angle. So I used their valve lenght, fly cut the pistons, used the rockers that T&D set up and that was that.
The Best version has a larger runner volume than what I do and a different valve angle. Pete has been working on his PSO project for some time and his car flys. I commend him for his hard work and I would not "steal" his efforts. Are their similarities, some. A 2.400 is the biggest pratical valve that fits in a wedge head on a 4.500 bore. This is not specific to Best of MM. If my version had the same runner volume and valve location/angle call me a theif. But they don't, so save the mud slinging!
My theory was to make a version of a PSO head that was more of a true drop on replacement (IE no piston modification necessary)of exisiting B1 headed combinations. The PSO can be a great upgrade for someone who doesn't want to make the leap to Predators.
To qoute Rodney King: "Can't we all just get along?" I thought the GM and Ford guys were the enemies? 
Mike @MM
well that sounds different. my apologies
Gen 3 power 6.22@110, 9.85@135
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performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: PSO Heads
[Re: tjmarcus1]
#864243
11/30/10 12:50 AM
11/30/10 12:50 AM
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Joined: Jan 2005
Posts: 1,260
Las Vegas NV
moparmanjames
pro stock
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pro stock
Joined: Jan 2005
Posts: 1,260
Las Vegas NV
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Quote:
this thread was supposed to be "who sells pso's" i believe we NOW HAVE that info!!!! this sorry thread has now gone down the toilet with a lot of mud slinging with the reps. of some very prominent business men being tarnished. i think it's time to stop!!!!! oh, i get it. let's run off some more people. WHERE ARE THE MODS???
I vote no on closing the thread, I'm getting a lot of interesting info out of it and enjoy reading about these heads. The mud slinging was just extra entertainment. 
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Re: PSO Heads
[Re: moparmanjames]
#864244
11/30/10 01:43 AM
11/30/10 01:43 AM
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Joined: Nov 2004
Posts: 6,890
North Alabama
Monte_Smith
master
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master
Joined: Nov 2004
Posts: 6,890
North Alabama
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Koffel and Rodder, were the principles on the design of the B-1 head, but I am sure there were others involved as well. I would think Hutchens had some input. I see Sullivan all the time, no doubt he would have some interesting stories, if you could sit through them all.....lol.
There is a set of B-1 heads in the office at Koffels Place, that I was told was set number 1. You see interesting things at Koffel's. Saw PSO and TS engines, Pro-Stock blocks, all kinds of interesting stuff..and this was in the late 90s, when I was gathering parts for a TS motor. I looked at the PSO headed motor and Scott showed me everything about it, but I went with the TS.
The progression of the Mopar head was, B-1, B-1 MC, B-1 PSO, then the B-1 TS. After the TS was the "Eicke" head, which was basically a GM spreadport head with a Mopar part number. Don't know how much run time the PSO head got in competition, if any. The TS was decent at the time, but the R&D on the GM stuff was just way ahead.
In my opinion, the PSO is a good head for a max effort inline headed motor, but not sure the cost and availability is worth it, for the gains over a MC headed motor, for any but the absolute diehard inline guy. Like somebody else said, you hurt one, might be hard to get a replacement, if it is true that Brodix will only sell castings, no less than 10 at a time. TS motors are no picnic either, as you really need a custom block, to correct pushrod angles. The 4.840 TS head is better, but that poses a block problem as well. Unless the "look" of the head just turns you off, the Predator is likely the best choice.
Monte
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Re: PSO Heads
[Re: B1Fish540]
#864245
11/30/10 02:19 AM
11/30/10 02:19 AM
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Joined: Feb 2003
Posts: 8,020
Pangaea
B5 Bee
master
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master
Joined: Feb 2003
Posts: 8,020
Pangaea
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Quote:
The origins of the Original B1 was brought up a while back and, IIRC, other names than Dave Koffel were brought up. Does anyone know who the first designer of the Original B1 head was? 
It was Radar (Roger L) at R&J Performance in Iowa that did most of the design work on the original B1.
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Re: PSO Heads
[Re: Monte_Smith]
#864246
11/30/10 02:19 AM
11/30/10 02:19 AM
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Joined: Aug 2003
Posts: 4,689
On the parachute mount
n20mstr
master
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master
Joined: Aug 2003
Posts: 4,689
On the parachute mount
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maybe the wrong place...maybe i shoudl start another thread...BUT what would it take to put a B1 or B1mc on a 440-1 short block?? I have a flattop piston, would/can the valve notches be re-cut or just not worth it and another piston would be required???? AND will it be a substantial gain?
....BAD A$$ STREET CAR.....
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