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Technical Plastic engine blocks?

Discussion in 'The Hokey Ass Message Board' started by nwguy, Mar 9, 2020.

  1. partsdawg
    Joined: Feb 12, 2006
    Posts: 3,801

    partsdawg
    ALLIANCE MEMBER
    from Minnesota

    Betcha a back brace that if you asked around and spread the word somebody local has one sitting around and in their way you could buy for 1/2 or less of the cost of a new one. Stock car or drag racer getting out of the hobby etc.
     
  2. Frankie47
    Joined: Dec 20, 2008
    Posts: 1,877

    Frankie47
    Member
    from omaha ne.

    BUY A HOIST.
     
    Black Panther likes this.
  3. DOCTOR SATAN
    Joined: Mar 21, 2014
    Posts: 703

    DOCTOR SATAN
    Member
    from okc

    Here ya go buddy, make a "T" bar with motor mounts on the ends and also a trans mount. Put different holes on trans end for various transmission lengths....
     
    hillbilly likes this.
  4. nwguy
    Joined: Oct 19, 2018
    Posts: 8

    nwguy

    A T-bar setup was what I had in mind for the corvettes. But a plastic block could also be used on other jobs.
     
    hillbilly likes this.
  5. cshades
    Joined: Sep 2, 2011
    Posts: 586

    cshades
    Member
    from wi

    I bought a plastic one at a car show, it was a blem but half price and I wasn't after looks
     
  6. BoogittyShoe
    Joined: Feb 18, 2020
    Posts: 330

    BoogittyShoe

    But $450 is about $350 too much. You could make the basic shape out of cardboard and duct tape. You don't need all the details. That sounds like a hokey idea but for $2 it's worth a try. Maybe.
     
    alanp561 and chopped like this.
  7. 1934coupe
    Joined: Feb 22, 2007
    Posts: 5,201

    1934coupe
    Member

    ^^^^^^^^^^ Really? Did you read my post?

    Pat
     
    Dick Stevens and Hnstray like this.
  8. bhemi
    Joined: Sep 1, 2010
    Posts: 103

    bhemi
    Member

    Summit sells brand new P-Ayr short block models for $299. You don't need the long block one for frame work. If it's your job and not your hobby just charge $50 more per job. It's hard finding good frame guys. Get paid.
     
    Hnstray and kidcampbell71 like this.
  9. bonzo-1
    Joined: Oct 13, 2010
    Posts: 342

    bonzo-1
    Member

    Why not weld up a jig in a known good frame.
     
  10. BoogittyShoe
    Joined: Feb 18, 2020
    Posts: 330

    BoogittyShoe

    Who, me? Yeah. You mean "Amortize..."?
    You're talking about spending money and making money. That's cool. People do that all the time. I'm talking about " Whatever works". I do that all the time.
     
    kidcampbell71 likes this.
  11. I had a friend once that had several motor mount fixtures. They amounted to a piece of tube with the motor mounts stuck on the end. He could set up a chassis to take a dozen different motor mount setups and didn't need anyone to help him. be a pretty easy setup of you had a chassis that was already to accept a mill.
     
  12. Im not going to lecture you on how you should lift your iron block because that's not what you asked for, but I'll give you this advice.
    If you buy a plastic block from a swap meet just look over the piece pretty good and possibly even try an intake manifold on it before laying out the cash.
    I bought this "Russell" brand plastic block with intake holes, timing chain cover holes, bellhousing holes, fuel pump holes, etc. The problem was when I got it home none of those holes lined up to anything, there's not even a pad to mount engine mounts to, it's completely smooth, the block itself is an inch and a half shorter than the intake manifold !
    So buyer beware...lol 20190617_190448.jpg 20190617_190456.jpg
     
    mgtstumpy and loudbang like this.
  13. alchemy
    Joined: Sep 27, 2002
    Posts: 22,160

    alchemy
    Member

    I think that Russell block is a store display to show off their shiney Chinese chrome and braided hose covers.

    P-Ayr blocks fit.
     
    mgtstumpy, Roothawg, Texas57 and 3 others like this.
  14. 57JoeFoMoPar
    Joined: Sep 14, 2004
    Posts: 6,425

    57JoeFoMoPar
    Member

    I don't think it's about the "basic shape" as it is about having the exact placement of bolt holes, etc. I can tell, I'm about to install a SBC in a different chassis, and having an exact mockup block that I could bolt mounts to and maneuver by hand due to the light weight would be immensely helpful so that I could weld the mounts in, remove the mockup block, and drop in the real thing.
     
    Texas57 and Hnstray like this.
  15. Yes I know the P-Ayr blocks are great but be wary of off brands, here's me and a P-Ayr block back in the early 90's, I'd like to do this to that Russell block then smash it on the ground...lol 20171219_235429.jpg
     
    mgtstumpy and kidcampbell71 like this.
  16. BoogittyShoe
    Joined: Feb 18, 2020
    Posts: 330

    BoogittyShoe

    Yeah, I thought of the t-bar fixture before anyone suggested it. And he said he had thought about doing that. I was just thinking that a cardboard (accurate dimension) model would be useful for checking clearances. All I know is that I designed and made my own motor mounts by making a cardboard template of the frame mounting pads and then used the negative of that template tacked to the edge of the table that the block was on to design the brackets.
     
  17. BoogittyShoe
    Joined: Feb 18, 2020
    Posts: 330

    BoogittyShoe

    Couldn't edit. I've read the "pictures or it didn't happen" thing, so here.
    Nice bead, huh? Screenshot_2020-03-10-17-09-18.png
     
  18. Hnstray
    Joined: Aug 23, 2009
    Posts: 12,355

    Hnstray
    ALLIANCE MEMBER
    from Quincy, IL

    I could do that too........30 years ago! That’s me in the middle....:D

    Ray
     

    Attached Files:

    Last edited: Mar 10, 2020
  19. southcross2631
    Joined: Jan 20, 2013
    Posts: 4,412

    southcross2631
    Member

    I bought plastic short block a guy had blown up. I bored and put a plastic sleeve in it . Works great.:D
     
  20. nwguy
    Joined: Oct 19, 2018
    Posts: 8

    nwguy

    Swade, digging your avatar! ooh lah lah
     
  21. olscrounger
    Joined: Feb 23, 2008
    Posts: 4,820

    olscrounger
    ALLIANCE MEMBER

    I have used the plastic blocks many times for setup--Easy on the old back. A friend has many of them for different brands etc. Sure helps when building alone. Used the plastic block on at least 8-9 40 Fords for setup with a gutted trans case.
     
    lothiandon1940 and 1934coupe like this.
  22. Bandit Billy
    Joined: Sep 16, 2014
    Posts: 14,882

    Bandit Billy
    ALLIANCE MEMBER

    I had a steel corvette with a plastic motor. No, wait...
     
  23. verde742
    Joined: Aug 11, 2010
    Posts: 6,540

    verde742
    Member

    I HAD a steel Corvette with a plastic engine..... O, wait that wasn't me !!,
     
  24. verde742
    Joined: Aug 11, 2010
    Posts: 6,540

    verde742
    Member

    where is new guy located ?
     
  25. THE FRENCHTOWN FLYER
    Joined: Jun 6, 2007
    Posts: 5,937

    THE FRENCHTOWN FLYER
    Member
    from FRENCHTOWN

    I have a sliced up (6 cyl) block. It has the main caps and motor mount bosses. I use it A LOT.
    For oil pan and lube system mock up.
    For motor mounts in chassis.
    For driveline alignment with the frame and rear end. frame buildup 16.jpg frame buildup 19.jpg oil pan fixture03.jpg oil pan fixture04.jpg
     
    2Blue2, fiftyv8, Black Wagoon and 3 others like this.
  26. I spent maybe 30 minutes with an air arc on a 350 block; never weighed it but it is a lot less than 100 lbs. I left the dowel pins and and a couple head bolt holes so I can install the heads and exhaust. Distributor, water pump, timing cover, fuel pump, side and front mounts all fit. Probably a little sturdier than plastic; maybe holds it shape better too; don't know. Been used quite a few times between me and friends.
    I think that 1/2 hour was well spent.
     
    ratrodrodder, oldtom69 and loudbang like this.
  27. alchemy
    Joined: Sep 27, 2002
    Posts: 22,160

    alchemy
    Member

    What's an "air arc"? A cutting torch or a plasma cutter?
     
  28. Rootie Kazoootie
    Joined: Nov 27, 2006
    Posts: 8,130

    Rootie Kazoootie
    Member
    from Colorado

    Kinda like stick welding but uses a carbon electrode and the stinger has a port that compressed air blows through that blows the molten slag away.
     
  29. Blue One
    Joined: Feb 6, 2010
    Posts: 11,496

    Blue One
    ALLIANCE MEMBER
    from Alberta

  30. sevenhills1952
    Joined: Mar 14, 2018
    Posts: 956

    sevenhills1952

    Why not easily fabricate something like this (I used a drawing app...but you get the idea). Some 4"X4"s, couple of 2"X4"s, top could be a couple 2"X8"s together...whatever you have. Just an "A" frame like a large saw horse on casters, maybe 8ft tall. Use HF electric winch or come-a-long.[​IMG]

    Sent from my SM-S320VL using Tapatalk
     

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