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#481
03-03-2014, 06:26 PM
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Oh -
and don't throw away your rough castings or prototypes. I'm going to cut it up anyways. 
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#482
03-04-2014, 12:16 AM
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Quote:
__________________
Anybody else on this planet campaign a M/T hemi Pontiac for eleven seasons? ... or has built a record breaking DOHC hemi four cylinder Pontiac? ... or has driven a couple laps of Nuerburgring with Tri-Power Pontiac power?(back in 1967) |
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#483
03-04-2014, 01:34 AM
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Hi Jack, Heads are for a customer. Fortunate to be a part of this effort.
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#484
03-04-2014, 11:47 AM
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Nice work....
Sure looks good with two intake valves next to each other on the center ports,, 
__________________
 ECM member. 2008 Outlaw Pontiac Drag Series Champion MANDRA Do it now fool! Life is short. 69 Grand Prix/3163lbs / IAII 535 w/ Tiger heads by Gaydosh....9.35@ 144 so far.. through mufflers. 1.26 60'. Going back to track with pump gas engine.... My 60 Ventura retired to street/strip duty.. |
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#485
03-04-2014, 12:21 PM
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Mike if I have any scrap pieces when I am done. I'll save them for you. Usually though the foundry wants them back after I inspect them and they melt them back down for something else.
I agree Jack!! The build Mr Robertson is going to be doing with these heads will be interesting. Although I don't think that it is going to be an all out deal, but a pump gas street set up. I'll leave the rest up to Jim and his customer to fill everyone in on if they are so inclined to do so. 60man, I know from the stock ram air 5 engines I have built. That the head gaskets look a whole lot better than the Siamese traditional Pontiac heads do when we tear them down. The heat between the two center exhaust ports wreaks havoc on the heads and head gaskets when you start making more horsepower with the siamese ports. Don Johnston DCI MOTORSPORTS INC. 330-850-5050 shop 330-628-3354 cell Designer of the DCI Tiger Heads and the NEW DCI Ram Air 5 Heads !!!!! |
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#486
03-04-2014, 12:59 PM
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oh I cant wait!!!!!
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#487
03-12-2014, 04:52 PM
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Don -
Any plans for making guide plates for your heads? Are they the same as stock ones?
__________________
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#488
03-12-2014, 06:05 PM
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I have stock guide plates.Tom
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#489
03-12-2014, 06:17 PM
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Thanks Tom -
I will have to wait and see which one of mine is broken because I don't remember off hand. Once the heads get back, I will ping you. I was kind of wondering if Don's heads will fit the stock guide plates or does he have some other design requirements. |
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#490
03-12-2014, 06:30 PM
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im sure Don will reply.The space between the studs will tell if stock will fit.Im sure for race use shaft rockers will be used.I have a set of shafts for stock V heads I have not even test fit.Tom
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#491
03-13-2014, 03:40 PM
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My valve locations are not the same as the factory heads. So my rocker stud locations are different as well. Sorry Mike. Good news is though Tom is making a stock replacement. So I would buy them from Tom. Thanks for considering me though.
Don Johnston DCI MOTORSPORTS INC. 330-850-5050 shop 330-628-3354 cell Designer of the DCI Tiger Heads and the NEW DCI Ram Air 5 Heads !!!!! |
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#492
03-20-2014, 11:53 AM
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Don, can you confirm for everyone that the pushrod placement WILL NOT Require and offset lifter in order to run the New RAM AIR V Heads that you are bringing to the market. Also If you have shaft rocker system, like T & D or Jesel planned for your heads, that may help out the guys who want to run a hotter setup then standard roller rockers. The shaft systems will really improve the rockerarm ratio options. Thanks in advance for your response.
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#493
03-20-2014, 06:09 PM
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Rick, My heads will definitely not need offset lifters. The way that I arranged the valve locations in my 5 heads. Actually helped the exhaust rocker alignment, and the intake valve pushrod as we all know is in the middle of the intake port. I am indeed working with T&D for shaft rocker systems and will be sending them a head soon. If someone would prefer Jesels. I will be more than happy to send Jesel a head for mock up too. You are correct about rocker ratio choices improving when going with a shaft system. Traditional stud mounted rockers can flex with the higher ratio's, and that problem can be controlled better with a shaft system.
Don Johnston DCI MOTORSPORTS INC. 330-850-5050 shop 330-628-3354 cell Designer of the DCI Tiger Heads and the NEW DCI Ram Air 5 Heads !!!!! |
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#494
03-22-2014, 10:08 AM
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I want to take a moment just to remind everyone that my DCI 5 heads are designed to work on a factory block with as small as a 4.150" bore. That is with 2.20" intake valves and 1.68" exhaust valves. They will also accept factory style rocker arms and you do not need to use shaft rockers unless you want to. The intake port has been re designed to improve drive-ability dramatically. I know there has been allot of talk about max effort street engines on here and I do not want anyone to think that is what my head was designed for. My heads will work on anything from mild to wild.
Don Johnston DCI MOTORSPORTS INC. 330-850-5050 shop 330-628-3354 cell Designer of the DCI Tiger Heads and the NEW DCI Ram Air 5 Heads !!!!! |
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#495
03-22-2014, 10:16 AM
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Don, how much is a set of heads and intake?
I am in the process of building a street car and will need a motor for it this fall. Thanks, Jack
__________________
First Pontiac powered street car in the 7's 7.940@170.84. 3460#s |
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#496
03-22-2014, 10:22 AM
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Quote:
Jim
__________________
****'63 Tempest, 475" IAII, Wenzler Super Chief heads, converted to blown alcohol, Birdcatcher, Littlefield 10-71 high helix. Best pass to date: 7.67 @ 181.59 (1/4 mi.), 4.95 @ 143.67 (1/8 mi.), 1.18 (60 ft) 7.75 @ 178 pass: https://www.youtube.com/watch?v=Iez3...ature=youtu.be First seven second pass(7.98): https://wwwoutube.com/watch?v=DK17...ature=youtu.be Thanks to Paul Carter @ Koerner Racing Engines 
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#497
03-22-2014, 11:56 AM
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Quote:
 , you can never have enough Pontiac street cars!
__________________
First Pontiac powered street car in the 7's 7.940@170.84. 3460#s |
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#498
03-22-2014, 12:16 PM
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Quote:
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#499
03-22-2014, 01:50 PM
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Jack, They will start at $3499.00 a set for the castings with guides and seats. The total price will depend on what someone would like to have done to them. I was going to offer complete heads, but everyone I have talked to wants to do something different. So it makes no sense for me to buy a bunch of parts that will just collect dust on a shelf somewhere. As for the intakes. All I can do right now is speculate a price, but I think they will be around the $800.00 range. Remember too that I am going to give a discount for paying by check or cash. I hate giving any more money than I have to to the credit card companies. The headers will be available through Mad Dog and I am trying to get someone on board for camshafts right now.
Another side note: The intake manifold is going to be a universal style. Meaning that I am going to offer several different tops for induction. You will be able to have anything from a single 4 to a blower including 3x2's. I think having a 3 two barrel throttle body fuel injection set up would be way cool!!!! Don Johnston DCI MOTORSPORTS INC. 330-850-5050 shop 330-628-3354 cell Designer of the DCI Tiger Heads and the NEW DCI Ram Air 5 Heads !!!!! |
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#500
03-25-2014, 01:38 AM
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intake
hey don
after studying pics of lynn's single intakes should'nt a 4150 spacer be wise on the dom intake since all 4150s are sold ? |
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