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Projects Poly begets a Hemi

Discussion in 'Traditional Hot Rods' started by wstory, May 21, 2020.

  1. Apache Albert
    Joined: Nov 8, 2018
    Posts: 79

    Apache Albert
    Member

    Gorgeous work! Definitely art in the making. Also shows us how patients and slowness work on an engine.
     
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  2. wstory
    Joined: Jul 4, 2008
    Posts: 1,190

    wstory
    Member
    from So Calif

    Well boys and girls,...seems like it's taking forever to make progress that I can share. I did have a week's distraction that I'll share at the end of this post.
    One thing I hate is billet parts. So I've congered up a way to take the edge offa parts, in this case the SBC water pump adapters, and then beat'em a bit with a pneumatic "scaler",....a Harbor Freight special. Matches up with the cast aluminum water pump pretty good IMO.
    IMG_2437.JPG IMG_2438.JPG IMG_2441.JPG
    Also scored a SBM serpentine crank pulley at the local wrecking yard to establish the plain of the serpentine system to drive the blower.
    Everything is now painted and purdy. Couldn't resist putting stuff together for a pic or two. IMG_2482.JPG IMG_2484.JPG
    And for the distraction,....I scored this A Tudor over the weekend. This was the answer to "whadda ya gonna put the Hemi in?" It came to me much earlier than expected, or needed, but all the stars aligned and it is now in my garage. The trick is, staying focused on the engine build and not fussing with the new toy. ;)
     
    Last edited: Aug 27, 2020
  3. wstory
    Joined: Jul 4, 2008
    Posts: 1,190

    wstory
    Member
    from So Calif

  4. patsurf
    Joined: Jan 18, 2018
    Posts: 388

    patsurf

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  5. ski
    Joined: Jan 21, 2008
    Posts: 100

    ski
    Member
    from San Diego

    Nice touch on the adapters Bill......and I love that Tudor. They'll make a great pair.
    ski
     
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  6. wstory
    Joined: Jul 4, 2008
    Posts: 1,190

    wstory
    Member
    from So Calif

    Tomorrow doing the wrecking yard to try to score a smooth steel offset pulley that will allow alignment of the serpentine belt from the SBM crank pulley.
    IMG_2494.JPG
     
  7. Good luck and happy hunting !
     
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  8. wstory
    Joined: Jul 4, 2008
    Posts: 1,190

    wstory
    Member
    from So Calif

    So I'm sittin here in the garage pattin myself on the back, regaling at my cleverness for scoring all this good shit from the wrecking yard. Chevy smooth (reverse rotating) water pump pulley lines up great 'tho I'll need to patch for a new pilot hole and bolt holes.
    IMG_2507.JPG
    IMG_2505.JPG IMG_2510.JPG
    And then I see,...the tensioner pulley is a different rib count then the Mopar crank pulley and and I'm already looking at the blower pulley being another diff. rib count. No surprise I guess when you mix Mopar and GM and Ford stuff,... right? That's Hot Roddin right?
     
  9. patsurf
    Joined: Jan 18, 2018
    Posts: 388

    patsurf

    just keep a spare under the seat,and run either belt--sure they'll wear quicker,but how much??
     
  10. Dick Stevens
    Joined: Aug 7, 2012
    Posts: 2,888

    Dick Stevens
    Member

    Seriously? That is a recipe for disaster!
     
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  11. Man, that sucks! It's like all the different wheel bolt patterns, why?!? This may be a stupid idea but could you machine the ribs off one of the pulleys?
     
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  12. wstory
    Joined: Jul 4, 2008
    Posts: 1,190

    wstory
    Member
    from So Calif

    Probably,....thought about that but there are so many options out there that I'll explore those first. The knowledge will likely apply to the other pulley requirements for the blower, alternator and tensioner/idler pulleys.
     
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  13. guitarguy
    Joined: May 26, 2008
    Posts: 412

    guitarguy
    Member

    Mopar usually runs 7 rib belts, GM runs 6 rib belts. If everything else is 6 rib, just run the crank pulley one rib short. It's really no big deal. Personally I'd run as much 6 rib GM stuff as possible as it is way more common.
     
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  14. wstory
    Joined: Jul 4, 2008
    Posts: 1,190

    wstory
    Member
    from So Calif

    Thank you Chad for your observations. I'm learnin that! :rolleyes:
    Spent the day resurfacing and making the smooth reverse rotation pulley mate to the SBC water pump and an adapter to space the fan blades to clear the belt,.....and a question....
    why's the smooth reverse rotation water pump pulley so heavy????? The material thickness for the part is approx. .180". Anyone have an opinion on the intelligence of shaving that .180" down to .120" on the OD.
    IMG_2518.JPG IMG_2519.JPG IMG_2522.JPG
     
  15. wstory
    Joined: Jul 4, 2008
    Posts: 1,190

    wstory
    Member
    from So Calif

    Ohhh yeahhh,.....more presents. IMG_2526.JPG IMG_2529.JPG IMG_2531.JPG
    Rocker assemblies are like jewelry. The cool part is that these are customized by QEC with adjusters fitted to the stock non adjusting rockers. Supersedes adjustable push rods that are a real PITA!
    And, I have finally got the GM smooth pulley and fan spacer assembly done. Now just need HEADS :mad: so's I can get alternator, idlers, intake and blower components mocked up.
    IMG_2539.JPG IMG_2544.JPG
     
    GordonC, j hansen, loudbang and 11 others like this.
  16. Is the pitch on the fan for reverse rotation. I just pulled that brain dead move a couple weeks ago.
     
  17. guitarguy
    Joined: May 26, 2008
    Posts: 412

    guitarguy
    Member

    Unless my eyes are deceiving me, looks like a standard rotation fan...good catch.
     
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  18. wstory
    Joined: Jul 4, 2008
    Posts: 1,190

    wstory
    Member
    from So Calif

    Good eyes mates! Man,...I can't get away with anything. You blokes are way too sharp :rolleyes:
    Yes, that is a standard rotation fan. I used it to determine the clearance of the blades to the serpentine belt, while waiting for the correct fan to arrive from Summit,....figuring the depth of the blades would be the same.
     
  19. Just checked mine and yup, it's a standard rotation fan. I got a nice 6 blade 18" steel fan rated at 3500CFM from Derale. I just had to laugh at myself when I fired up my engine went to the front of the car and the air was blowing on me, first two words that came to my mind were dumb ass
     
  20. Our D7 has the fan blowing through the radiator, it helps keep the dust and ash out of the radiator fins and away from the driver when pushing up the burning stump piles while clearing land.
     
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  21. George
    Joined: Jan 1, 2005
    Posts: 7,271

    George
    Member

    Well, it was going through the radiator......:)
     
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  22. Common practice in the hot weather on a Cat. Cold weather reverse it so it will blow the hot air back onto you. Now with AC and heated cabs not so much of a necessity but back in the day, it sure was.
     
  23. Dedsoto
    Joined: Jan 7, 2014
    Posts: 63

    Dedsoto
    Member
    from Australia
    1. Aussie HAMBers

    A 6PK belt won't know or care if it's running on a 7/8/10PK pulley. The water pump pulley is heavy as belt tension on a serpentine belt is much greater than a V belt.
     
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  24. Shawn Wildman
    Joined: Jul 8, 2018
    Posts: 23

    Shawn Wildman

    Cool project!
     
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  25. wstory
    Joined: Jul 4, 2008
    Posts: 1,190

    wstory
    Member
    from So Calif

    Damn!,....I wish I had those cylinder heads! They are in the critical path of resolving the drive system for the water pump, alternator and blower.
    So attempting to make some kinda progress, I pulled out the water crossover who's removal from the stock 100 lb water pump and manifold assembly was started some time ago.
    IMG_4269.JPG IMG_4274.JPG Img_4279.jpg
    I have "faced off" the gasket surfaces, cleaned up the rough cuts and done the scaler trick to maintain the "cast character" of of the reworked surfaces. In the process it comes to light that, unlike the tall deck Hemi, there are no bosses to mount accessories. I was planning on using those to mount the alternator and idlers. Soooo,....today's design project is to imagineer a way to provide mounting points for those accessories.
    IMG_2553.JPG IMG_2559.JPG IMG_2567.JPG
    also plugged the gaping hole in the bottom of the crossover with a 3/16" thick plug and JB Weld
     
  26. By blending those lines they now mimic factory mold casting lines. I sure hope those heads get there fast so you can move on and keep us all enthralled with your craftsmanship.
     
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  27. wstory
    Joined: Jul 4, 2008
    Posts: 1,190

    wstory
    Member
    from So Calif

    Just couldn't wait any longer for the heads. Stressing over the component/pulley locations was keeping me awake at night. So, using a junk head, I started mocking things up.
    IMG_2578.JPG IMG_2586.JPG
    I've guessed at the location of the blower pulley. Today that will get attention. Looking at this preliminary, I need to try for more wrap on the water pump and alternator pulleys. The obvious solution is to lower the alternator but that is a very tight fit between the back of the alternator and head right where the electrical connections are :mad: I'm hoping the whole package will become more compact.
     
  28. 57 300
    Joined: Jan 1, 2010
    Posts: 253

    57 300
    Member
    from Mn.

    Your "imagineer'n" is sound and solid.Really like this thread !
     
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  29. 73RR
    Joined: Jan 29, 2007
    Posts: 6,372

    73RR
    Member

    I'll suggest that you have adequate wrap on the wp and alt.

    .
     
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  30. TCTND
    Joined: Dec 27, 2019
    Posts: 123

    TCTND
    Member

    If the alternator will fit in front of the head (rotated 140 degrees?) that would improve the wrap on three pulleys.
     

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