Register now to get rid of these ads!

History The Mystery Of The RPM Valve Covers

Discussion in 'Traditional Hot Rods' started by Ryan, Mar 31, 2021.

  1. How are those ribs anyway???
     
    Deuces, kidcampbell71, Thor1 and 2 others like this.
  2. plan9
    Joined: Jun 3, 2003
    Posts: 4,058

    plan9
    Member

    As I understand, MT used local SoCal foundries.
    Apparently Mickey's projects evolved quickly and many were DOA before they really took off, as a result castings were never used or paid for.

     
    vtx1800, Deuces and Thor1 like this.
  3. Ebbsspeed
    Joined: Nov 11, 2005
    Posts: 5,527

    Ebbsspeed
    ALLIANCE MEMBER

    I can't resist. How often do you get the opportunity?

     
  4. 41 GMC K-18
    Joined: Jun 27, 2019
    Posts: 1,649

    41 GMC K-18
    ALLIANCE MEMBER

    @Ryan @hansboomer .
    I am not trying to be a smart ass here, but just for the record, Patsy Cline, Hawkshaw Hawkins, and Cowboy Copas were all killed in a 1960, Piper PA-24 Comanche that crashed on 3/5/63. So that rules out those mystery RPM valve covers, ever being used on a SBC in that time period, in any aircraft !
    YMMV.
    From Dennis.
     
    Deuces, Roothawg, Just Gary and 4 others like this.
  5. hotrodjack33
    Joined: Aug 19, 2019
    Posts: 2,554

    hotrodjack33
    ALLIANCE MEMBER

    The fact that someone went to the effort to make 2 seperate molds (staggered & straight) for RPM valve covers, would indicate to me that someone was serious about getting these out there...and it wasn't just a short run for his buddies.
     
    Tman, Deuces, Tickety Boo and 2 others like this.
  6. Jungle Jalopy
    Joined: Mar 31, 2010
    Posts: 270

    Jungle Jalopy
    Member

  7. mkubacak
    Joined: Jun 20, 2005
    Posts: 199

    mkubacak
    Member

    They could have been in the luggage.
     
  8. Starlinerdude
    Joined: Mar 6, 2008
    Posts: 148

    Starlinerdude
    Member
    from Washington

    This doesn't help with ID'ing them,but you'd think by 63 MT would be using 461 or later non staggered heads on a max effort Indy engine.Was RPM brand oil and gas still around in the late 50's,maybe something sold thru their gas stations?
     
    Deuces, Thor1 and 41 GMC K-18 like this.
  9. Hollywood-East
    Joined: Mar 13, 2008
    Posts: 1,453

    Hollywood-East
    Member

    Woke up a 4:45, AM, First thing I thought of.... Did someone A) have another pair, B) solve Ryan's Part's Mystery. (RPM)

    Now, Back to your regularly scheduled programming...
     
    Deuces, Nostrebor, Thor1 and 4 others like this.
  10. .................A true hot-rodder.:D;)
     
  11. Those were just a one off set. They were ordered by the late entreneur { Robert Paxton Mc Culloch } He was best known for his chainsaws, and buying the london bridge. He then had it moved to Arizona. He had them made for his custom Corvette. It's now under restoration in Missouri.
     
    alanp561, scotty t, Deuces and 4 others like this.
  12. 19Eddy30
    Joined: Mar 27, 2011
    Posts: 1,276

    19Eddy30
    Member
    from VA

    I would like to help , I have almost every issue of Hot Rod Magazine including multiple special issues released , (Yearly year books) I believe my Collection starts right around 50ish (maybe 49) to around 1974 , I have not flipped threw in 20 years. they are in multiple boxes and plastic containers,
    ( almost lost them all in a fire a few years ago ) NOT making Excuses, dealing with Elderly parents and other personal issues,
    ( few on HAMB know this to be true)
    These mags to me are the history what were they doing in the early years such in such year or who did what!! Seeing Hod Rod moving out side of Callie
    (reporting and writing about to other parts of USA ,seeing different things people were doing outside of California.
    I have something to help just unable to provide it right now maybe someone else has a collection as big as mine that they can easily put their hands on.
     
  13. EA64C761-EEB8-40FD-B6E7-9E3B149EF909.gif
     
    verno30, scotty t, Deuces and 4 others like this.
  14. LOL!!!

    I had a music theory professor in college who would say ummmm or uhhhhhh in between ALMOST EVERY ONE OF HIS WORDS!!!

    Will never forget the day the lights went out in the middle of class. Even with a room full of students, there was so little movement (out of sheer boredom) that the motion sensors shut the lights off (inside room, no windows). In the midst of the darkness, Dr. Epstein muttered, "Ummmm this has, uhhhh happened before, so, ummmmmm get up and and, uhhhh flap your arms". :D
     
    alanp561, Tman, Deuces and 4 others like this.
  15. Graham08
    Joined: Oct 2, 2007
    Posts: 138

    Graham08
    Member

    Early/mid 1960's Indy cars had a max displacement of 255 cubic inches for naturally aspirated engines. That's the reason for the "destroked" comment in the Hot Rod Magazine photo caption. The limit was decreased from 270 to 255 sometime in the 1950's.

    MT's Chevys were a one year only thing. In 1962 they ran aluminum Buicks. 1963 was the Chevys in the "roller skate" cars that had 12" diameter wheels. For 1964, the "roller skate" chassis were rebuilt with 15" wheels and ran DOHC Fords.
     
    Deuces and Thor1 like this.
  16. 19Eddy30
    Joined: Mar 27, 2011
    Posts: 1,276

    19Eddy30
    Member
    from VA

    Ryan , Maybe drop a Email to Ray Evernham. Different circle of people with alot of connections to experimental Golden years of Indy.
     
    Tman, Deuces, Nostrebor and 1 other person like this.
  17. indyjps
    Joined: Feb 21, 2007
    Posts: 4,234

    indyjps
    Member

    Dont have any solid leads, just an idea. Look at the overall valve cover shape and ribs, see what other valve covers are similar or match. The valve cover main mold is the expensive part, changing out an insert in the mold to make brand specific parts is not a big change. Inserts are common on molds for branding and date codes.
    I suspect these were a small run of RPM valve covers on an existing mold that matches other brands or blank valve covers.
     
    Magfiend, 41 GMC K-18 and Deuces like this.
  18. Hollywood-East
    Joined: Mar 13, 2008
    Posts: 1,453

    Hollywood-East
    Member

    We might have to get all CSI, If this keeps up... There's gotta be sand/alloy DNA
     
    alanp561, Deuces, Squablow and 4 others like this.
  19. Moriarity
    Joined: Apr 11, 2001
    Posts: 21,361

    Moriarity
    SUPER MODERATOR
    Staff Member

    I paged thru every issue of HRM between 60 and 64, paying close attention to the "what's new" section and the articles on production v8's in Indy cars because we thought Mickey Thompson was involved, I also paged thru a couple of vintage JC Whitney catalogs....
     
  20. Ryan
    Joined: Jan 2, 1995
    Posts: 19,760

    Ryan
    ADMINISTRATOR
    Staff Member

    I emailed a link to this story to just about every "rare part guy" that I know... Most common response was something along the lines of, "Yeah... You asked me this a couple of years ago. Never seen them before and know nothing about them..."
     
  21. Moriarity
    Joined: Apr 11, 2001
    Posts: 21,361

    Moriarity
    SUPER MODERATOR
    Staff Member

    hang em back on the wall and post a thread about them every 5 years until you figure it out....
     
    alanp561, XXL__, scotty t and 7 others like this.
  22. TRENDZ
    Joined: Oct 16, 2018
    Posts: 310

    TRENDZ

    Am I a fool to say I believe this?
    No one has commented on this?
    Maybe no one other than locals know that London bridge is in Lake Havasu?
     
  23. corncobcoupe
    Joined: May 26, 2001
    Posts: 5,568

    corncobcoupe
    SUPER MODERATOR
    Staff Member

    It's April Fools Day..........
     
    Thor1, Deuces, Blue One and 7 others like this.
  24. Yeah it was my HAMB April Fools day joke. Before coffee :rolleyes::p:confused:
     
    Thor1, 41 GMC K-18, Deuces and 2 others like this.
  25. Ryan
    Joined: Jan 2, 1995
    Posts: 19,760

    Ryan
    ADMINISTRATOR
    Staff Member

    That's what I've been doing for the last decade or so... I can keep up that schedule...
     
    Thor1, Deuces, 41 GMC K-18 and 6 others like this.
  26. Nostrebor
    Joined: Jun 25, 2014
    Posts: 1,185

    Nostrebor
    ALLIANCE MEMBER

    Adding a "Ryan's Part Mystery" sign (Trademark @Hollywood-East ) to the static display would add memorial to the current discussion.

    You could do up a neat logo and print us some tee shirts with the covers on them. I would be down for a couple just for the conversation starter.;)
     
  27. NashRodMan
    Joined: Jul 8, 2004
    Posts: 1,694

    NashRodMan
    Member

    Maybe list them on eBay with a starting bid of $1500 and see what happens. And send Mr. Deep Pockets a message with a link to your ad. If he really wants them he will place a bid. If you really don't want to sell them just cancel the ad before the timer runs out.
     
  28. Speed Gems
    Joined: Jul 17, 2012
    Posts: 3,338

    Speed Gems
    Member

    That's it! valve covers in the luggage made the plane too heavy so it crashed. Just like that episode of I love Lucy were she puts too many rocks in the trailer so the car can't pull it up the hill. ;):eek::D
     
    Deuces, Thor1, Tman and 1 other person like this.
  29. 41 GMC K-18
    Joined: Jun 27, 2019
    Posts: 1,649

    41 GMC K-18
    ALLIANCE MEMBER

    @indyjps @Ryan
    More grist for the mill and another rabbit hole to potentially fall into. I think indyjps is onto the right track, as you can see from this set of EDMUNDS valve covers.

    EDMUNDS valve cover.JPG

    As a side note, Paxton did make one concept car, the Paxton Phoenix, it never went into production.

    Paxton at Pebble Beach.jpg Paxton Phoneix at Amelia Island.jpg All of that being said, wishing you all a very happy April Fools Day, the mystery hunt continues!
    From Dennis.
     
    catdad49, Deuces, Thor1 and 4 others like this.
  30. Louie
    Joined: Mar 3, 2001
    Posts: 659

    Louie
    Member
    from NJ

    Sorry guys I wish I had some more info on these.I do remember them languishing in the Hamb classifieds for a while before Ryan grabbed them,kinda wish I would have bought them.
     
    Deuces, Thor1 and bowie like this.

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.