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Hyper Pak Exhaust Reproduction https://slantsix.org/forum/viewtopic.php?t=57147 |
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Author: | Rick Covalt [ Mon Feb 23, 2015 5:45 am ] |
Post subject: | Hyper Pak Exhaust Reproduction |
Short Version: It looks very likely that by the end of summer the manifolds that I have will be in the hands of a pattern maker, and then off to be recast. I am trying to get a count of how many people would be interested in a set for $650/pr. If so, you can post here, but please send me a PM with: Name Address Telephone number Vehicle - early A, Late A ...etc. Restrictions - P/S, AC or intake it must work with Long Version: I found a small foundry in Lancaster Pa that does cast iron work at a very reasonable price. They have a great reputation and they are more than willing to do"odd-ball" low volume things. So I took the manifold to them and they said that indeed they would cast them for me, but I would need to get the core boxes made. As it turns out he said that 2 of the best pattern makers that he knew of lived in Waynesboro, PA, my home town. I had no idea of course! So I went to the pattern maker and had a very nice talk with him and showed him the manifolds. He said he can do them as well as the machining work where the triangle washers go after they are cast. So barring some tragic turn of events this should happen in the Fall or Winter this year. I will have to have a single set cast and machined and then I will mount them on some vehicle for a test run to make sure that the castings are Ok. Once I am happy that they are good then I will tell the foundry and they can cast away! At present, I only know that they will fit a Hyper Pak intake, Clifford intake, and Weiand 4 barrel intake. I currently have the manifolds on my race car and I plan to run them for the first 2 races of this season, which will be May and June for me. Then I will remove them and will check their fitment with a factory1 barrel, 2 barrel, Offy 4 barrel, Clifford 3X2 barrel, and a Offy 2-1 barrel manifold. That should cover most manifolds. Just for full disclosure, there will be two very slight changes made to them. First, the outlet size will be increased to 2" instead of the factory 1 7/8". Second, the outlet flange mounting tabs will be made slightly thicker to add a little bit of strength there. I want at least 10 people up front who are dead serious about these and have the money. No wishers please. I really need to know how many people are interested at the price. I can't imagine there are not at least 20 but we shall see. Once this thing is a definite go I will probably ask for a 50% deposit with the remainder due before shipment. I forgot to mention that you must use the "super mini" starter to have clearance around the back manifold. This is for 2005-2008 5.7L truck with manual transmission only. I paid @ $130 for mine. Advance Auto parts Part # 16054 is what I ordered. Currently Rock Auto, DENSO Part # 2804256 is about $123. You must drill the one threaded hole in the starter and use a countersunk bolt for one of the bell bolts. There you have it! Rick |
Author: | Rick Covalt [ Mon Feb 23, 2015 5:48 am ] |
Post subject: | |
Here is the list of folks that want a set of these as of now: I will update as we go. Rick Covalt Ryan Covalt Lou Madsen------2 sets Brian Mimken Ron Hamby Bill Barbee Rob Armstrong Don Hudson Brian Griedel Al Cardenas ------2 sets Leighton Drake---2 sets Mark Goodman Steve Magnante Ned Branson Mark Merritt Frank Femling Fanie Gerber Mike Graff Steve Mhitmarsh-----2 sets Josh Picarri Norm Foster Mike ?? (Shimos) --3 sets |
Author: | Dart270 [ Mon Feb 23, 2015 6:52 am ] |
Post subject: | |
Thanks so much for your efforts, Rick. These are very cool units. I saw them mounted on Rick's car in January and they make for a quite tidy installation and exhaust routing. Slant on, Lou |
Author: | 65 dartman [ Mon Feb 23, 2015 6:58 am ] |
Post subject: | |
PM on the way |
Author: | SlantSixDan [ Mon Feb 23, 2015 10:52 am ] |
Post subject: | |
How cool! I can't commit the $ right now, but I'll be keeping a keen eye on this. |
Author: | Reed [ Mon Feb 23, 2015 10:54 am ] |
Post subject: | |
Quote: How cool! I can't commit the $ right now, but I'll be keeping a keen eye on this.
Ditto.
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Author: | SlantSixDan [ Mon Feb 23, 2015 10:54 am ] |
Post subject: | |
Er…I just had another thought, wondering if this front-3 casting might offer more clearance for things like P/S, A/C, etc. |
Author: | Danarchy [ Mon Feb 23, 2015 11:17 am ] |
Post subject: | |
Sorry Rick, I am just in the Dreaming Stage right now. This seems like a Really Cool Project you've undertaken! |
Author: | Dart270 [ Mon Feb 23, 2015 11:19 am ] |
Post subject: | |
Dan, If you are interested to possibly get this made, I suggest you talk to Rick right away, and consider sending him your manifold for side-by-side comparison. You can trust him with your life. Best, Lou |
Author: | Dart270 [ Mon Feb 23, 2015 12:52 pm ] |
Post subject: | |
Thanks, Rick. It looks like PS is no problem to me. I have a 64 K frame with a Slant 6 and PS bolted to it sitting on my garage floor, and I could do a test fit in a jiffy. Dan, this applies to your manifold as well, if you want to send yours to me. I could plop the Sanden AC unit on there too to check that. Very interested in the 1/4 mile times on that car and engine compared to the long tube headers... One question: How the heck did they fit those hpak exh manifolds onto the 170 as far as starter clearance?? I guess those had the older starter type, but still... It also occurred to me that the few of us with "low starter" Slant/trans combos will have no trouble with using an old gear reduction or mini starter. This would include 727 and A500-type apps with factory adapter plate, 11" clutch BH factory apps, and GM-Wilcap adapter plate apps. Best, Lou |
Author: | 65 dartman [ Mon Feb 23, 2015 3:25 pm ] |
Post subject: | |
It looks like it would be a tight fit with PS. I believe Charrlie_S said Clifford shortie headers won't fit without modification on a 225 with PS. |
Author: | Pierre [ Mon Feb 23, 2015 4:53 pm ] |
Post subject: | |
Quote: It looks like it would be a tight fit with PS. I believe Charrlie_S said Clifford shortie headers won't fit without modification on a 225 with PS.
It may be car specific then. I ran a 225 in a 71 duster with power steering. I don't remember the exacts. It was close... the tube went right over the dome thingy on the power steering box. Maybe 1/2" clearance, bit more perhaps, but it was fine.
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Author: | Reed [ Mon Feb 23, 2015 5:41 pm ] |
Post subject: | |
I would only be interested in a fancy reproduction manifold if it was guaranteed to clear PS and AC. |
Author: | barbee6043 [ Mon Feb 23, 2015 6:08 pm ] |
Post subject: | |
i would pull the trigger on a set if it would accept factory 2 bbl or offy 2-1. I look forward to your progress. |
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