Register now to get rid of these ads!

Technical 383 SBC in a 56 Chevy how to ?

Discussion in 'The Hokey Ass Message Board' started by VANDENPLAS, Oct 1, 2024.

  1. IMG_0618.jpeg IMG_9359.jpeg IMG_9361.jpeg

    So just bought a 383 and t5 that was in a buddies Camaro aluminum angle plug heads roller cam , demon carb , msd ignition great running engine built about 5 years ago . Buddy went out west to chase oil money the camaro sat in his parents car port t-roofs leaked and the interior went moldy and floors got soft.

    anyways I got a screamer of a deal on it and the WCt5 ****** .

    now my question is what do I need to install this in my 56 .

    mounts , cross member , exhaust manifolds or headers parking brake handle the clutch is hydraulic would I switch to cable ?
    Parking brake handle be in the way ?


    I know with the iroc t5 I would need to switch to buckets that’s a possibility or I might swap to a s10 trans .

    eitherway

    what’s my shopping list for this project ?
     
    SS327 and guthriesmith like this.
  2. Johnny Gee
    Joined: Dec 3, 2009
    Posts: 14,430

    Johnny Gee
    Member
    from Downey, Ca

    Man this is going to be chock full of opinion based responses. You ready for them?
     
  3. squirrel
    Joined: Sep 23, 2004
    Posts: 60,040

    squirrel
    Member

    you can buy a clutch m/c kit. Find a pair of early 60s GM bucket seats. You'll probably want side mounts for the engine. See if you can swap on some short valve covers to clear the firewall more easily. you'll need a transmission crossmember, and probably cut off the frame horns that mount the crossmember now. Different driveshaft yoke, if you're lucky the length won't change, but it probably will. Some type of headers might fit, or get some rams horn manifolds. Get a smaller distributor.

    But there will be a bunch of other good ideas, too
     
  4. partsdawg
    Joined: Feb 12, 2006
    Posts: 3,945

    partsdawg
    ALLIANCE MEMBER
    from Minnesota

    Whatever a 1955-56 Hot Rod magazine says to do for the engine ;) and fab a trans crossmember.
    Watch half a million Youtube videos on how it's done and discover 85% are hacks and come back and re-read Squirrels response as it is the best advice thus far.
     
  5. 427 sleeper
    Joined: Mar 8, 2017
    Posts: 3,372

    427 sleeper
    ALLIANCE MEMBER

    If the car is stick shift now, I'd look for a V8 bellhousing for a tri five and use the factory mounts and clutch linkage, crossmember is optional. Headers for performance, or 2.5" Ram Horn manifolds for reliability AND performance. As squirrel said, a smaller distributor and shorter valve covers for better clearance. Use as many factory systems as possible and it should damn near fall together. Be sure to through bolt the left rear motor mount in 2 places to keep it from separating from the excessive torque of a 383 if you go this route. A shorter driveshaft might (probably will) also be needed. The parking brake shouldn't be an issue.
     
  6. Bought a generic tri 5 aftermarket trans crossmember for the wife’s 56.
    There’s plenty of side mount kits.
    Super EZ.
    I don’t have pictures but we put a termec in a 55 with a bench. Heated and bent a piece of stainless to clear the bench for the shifter.
     
    VANDENPLAS, 427 sleeper and Papas32 like this.
  7. Used these trans dapt mounts IMG_2224.jpeg Engine sit a tad too low to clear the PS pump so I had to space em up on the frame about 3/8
    I’d probably go this route if I do another one
    IMG_2225.jpeg
    some mounts will move the engine foward to clear those large ugly distributors
    You already got the 6 cyl radiator so that cool if using those mounts.
     
    ekimneirbo and VANDENPLAS like this.
  8. poco
    Joined: Feb 9, 2009
    Posts: 1,779

    poco
    Member
    from oklahoma

    Yes it can be done but you are about to over build the wagon. Leave the 6 cy and enjoy.
     
  9. Johnny Gee
    Joined: Dec 3, 2009
    Posts: 14,430

    Johnny Gee
    Member
    from Downey, Ca

    The only thing I’ll say is this. The lower pic that Anthony posted that used the round biscuits is how I did Carina’s 56. It keeps with how GM did it 55-57 in one sense and how they did it 58 and up all in one package. Added bonus, no having to hover engine above the mount then lower it.

    As mentioned all ready. Pay attention to what ever mount you go with as far as stock location or forward. By the way. Is a T5 the same length as say a Muncie 4 speed, TH350? If so, use your same drive shaft. Just change trans yoke.
     
  10. That HEI dist many not clear the firewall. Use a small body dist. Stay away from 3/4 inch forward mounts if possible. They cause oil pan center link clearance problems. That engine has a right hand side oil dip stick. Not a problem until its time to check the oil.The battery box sits over it so it cant be pulled. On my 55 Chev I used a 57 battery box,and mounted it behind the p***enger head light like a 57.Took a little fabing,but saves putting the battery in the trunk. 2.5 vette manifolds will clear the stock manual steering box.
     
  11. Kerrynzl
    Joined: Jun 20, 2010
    Posts: 3,638

    Kerrynzl
    Member

    This for the troof!

    Depends on the owners wants and needs.
    If the owner wants stock [ish] appearance then a 55-57 bellhousing , starter , flywheel , and S10 T5 tail swap.

    But if @VANDENPLAS doesn't mind the idea of bucket seats then the side mounts, and rear crossmember is the way to go.
    Also cut off the rear frame horns for the original engine mounts, they are not needed and free up room for headers.

    When doing the side mount /rear crossmember conversion you can "fudge" the engine forward a bit for HEI distributor clearance. [sometimes you need an early oil pan to clear the steering centre link]
    Leave the radiator in the 6 cylinder position .

    @VANDENPLAS , I would do that swap without a 2nd thought

    The Camaro T5 is 2" longer than a Muncie / ST10
    upload_2024-10-2_14-40-37.png
     
    VANDENPLAS and Johnny Gee like this.
  12. There’s a billion motor mount suppliers

    IMG_9502.png IMG_9503.png IMG_9504.png


    I’m thinking ram horn exhaust manifolds ( seen a couple different types ones that dump straight down and others that are swept back .

    not against headers , just want no issues with steering etc because of exhaust .

    front mounts and a trans cross member seem pretty easy .

    I want to put the battery in the trunk anyways to clean up under the hood .

    early low back buckets would be neat , or I like @anthony myrick idea of tweaking the bench seat for the shifter, looking to do a mild custom with this car , but bench seats are cool !!

    is it worth buying the complete kit with cross member mounts etc from speed way ?
     
    Johnny Gee and anthony myrick like this.
  13. The idea is complete reseal on the motor fix what ever needs fixing etc . , I would like stock exhaust manifolds or something “ stocklooking “ engine painted orange oem valve covers ( maybe vette finned covers) and a factory duel snorkel air filter .

    try to keep it stock-ish looking kind of a “ what if a 383 came stock in a 56 kind of look . With all the chrome and billet most guys do on their builds a stock looking engine stands out in a crowed .
     
  14. Dang prices up that much after a year?
    Picked up a speedway trams x-member from their garage sale for $50 ish
    The trans dapt mounts were like $75.
     
  15. Mr48chev
    Joined: Dec 28, 2007
    Posts: 36,054

    Mr48chev
    ALLIANCE MEMBER

    Small distributor is a must, low profile finned valve covers or Corvette finned valve covers. If those are aluminum heads I wouldn't be apposed to painting them engine color. Simple is good.

    If you keep that transmission you have to keep that bellhousing and cannot swap the S-10 shift towner to move the shifter forward as someone suggested. That shift handle looks seriously tall as if someone added a piece to make it quite a bit taller than what you expect in a Camaro.
    Cast manifolds of choice if you aren't hung up on headers as it will be a lot simpler and a lot more trouble free. Someone who has run ramhorns in a 56 should be able to make an honest suggestion with photos.
    Unless the engine has a radical cam and or a lot of compression it shouldn't be too wild for the street as someone claimed. Good lord, we are a hot rod group not a bunch of pansy restorers.
    Engine swap kit of choice. Hopefully there is some honest feedback on that.
    Have fun and don't get too many tickets.
     
  16. Kerrynzl
    Joined: Jun 20, 2010
    Posts: 3,638

    Kerrynzl
    Member

    The shifter can be relocated forward with that tailhousing if @VANDENPLAS has some fabrication skills
    This requires ZERO dismantling of the transmission except removing the shifter itself.
    There is a lot of room between the tunnel and the top of the trans in a tri-5 [2" at the main casing]

    You cut the shift lever and weld a "T" pivot on the stub.
    Then you make a "Dogbone" single rail to a remote shift lever. [here is a factory Ford Version]
    This can go rearward or forward [it works both ways]
    upload_2024-10-2_17-35-13.jpeg

    The shift lever is located with a spherical bearing either attached to the tunnel or the trans casing
    here is a tunnel mount welded into my race car [in this example the shifter goes rearward]
    upload_2024-10-2_17-32-9.jpeg



    I am going through this process right now with a McLeod shifter [I am very limited to clearances]
    upload_2024-10-2_17-46-43.jpeg

    upload_2024-10-2_17-40-46.jpeg

    Here is the end pivots for a "dogbone"
    upload_2024-10-2_17-41-34.jpeg

    If you need to cut the floor for clearances [eg: under the bench seat] You can use an old enamel "pie dish" upside down to make a nice tidy hump in the floor
    [If you get caught by your wife, tell her the guy from New Zealand gave you permission :D:D]
    upload_2024-10-2_17-59-38.png

    If you have carpet over the hump, use some contact glue on the carpet and the hump ,Then spray boiling water onto the carpet [this is how you DIY mold the shape of carpet] once the carpet is dry you can separate the glue if needed
     
    VANDENPLAS and Budget36 like this.
  17. chevy57dude
    Joined: Dec 10, 2007
    Posts: 9,718

    chevy57dude
    ALLIANCE MEMBER

    Find a buyer for your 6 cylinder engine and transmission while it's still in the car. It's easier to sell when the purchaser can see it run.
     
  18. While I love me a straight six anything ( truly inline 6’s are my favourite engine)
    They hold virtually no value up here .

    I would hopefully flog it and the trans off for a couple hundred bucks if I’m lucky.
    You see them pop up “ original BLUE FLAME SIX from a 55 or whatever Chevy and usually start at a grand or 2 and slowly they dwindle down to under $300 bucks .

    there’s a bunch for sale around me right now for 50-500 bucks in varying degrees of ****piness.

    the cost to build old iron has drastically dropped the prices on them
    , heck even old dodge and Chrysler hemis can be had for under 2 grand complete.

    anyways , just god a set of 65 impala front hubs to upgrade the wheel bearings and switch to disc brakes at some point , sent a message to a guy who has a set of 2” drop spindles for sale . Let’s see what happens . Gathering parts at this point .

    IMG_9508.jpeg
     
    427 sleeper and chevy57dude like this.
  19. chevy57dude
    Joined: Dec 10, 2007
    Posts: 9,718

    chevy57dude
    ALLIANCE MEMBER

    $300 in your pocket is better than a greasy lump in your way.
     
  20. MCjim
    Joined: Jun 4, 2006
    Posts: 1,382

    MCjim
    Member
    from soCal

    May want to move the radiator to the V8 position. I used Hurst mounts in front and an early Camaro crossmember for the trans, which required to weld mounts on the frame-angle iron.
    [​IMG]
     
    anthony myrick and VANDENPLAS like this.
  21. squirrel
    Joined: Sep 23, 2004
    Posts: 60,040

    squirrel
    Member

    moving the radiator back works if you don't plan on having AC or PS or a large fan or anything up there...otherwise, leaving it forward works out ok in many cases.
     
  22. Rounded up the short pump parts to keep mine in the v8 position.
    Used a CPP power box. Rams horn manifold is tight on that side. Will probably shift the engine off center slightly.
    Building for the wife. She requested PS.
    I’d prefer not to have it for me
     
  23. Car steers fine with no power steering now . The SBC is lighter by a bit compared to the inline6

    so while it’s not out of the question , pwr steering is not on my “ to do list “ right now .

    I’ve seen a bunch of 350-327 tri fives with ram horns and while it’s tight to the box it fits and works .

    looked at a steering rack option to gain some space , but it seems the consensus is it screws up steering geometry more then it helps anything . And then your messing with the coloumn . Ain’t doing it !
     
  24. Johnny Gee
    Joined: Dec 3, 2009
    Posts: 14,430

    Johnny Gee
    Member
    from Downey, Ca

    I put repop 2 1/2” ram horns on Carina’s. No big deal with clearance. They are Dormans. I ordered two drivers side. Took one and cut off gen/alt mount off then contour ground to match. All because a plank p***enger wasn’t available.
     
    VANDENPLAS likes this.
  25. ekimneirbo
    Joined: Apr 29, 2017
    Posts: 5,432

    ekimneirbo
    Member
    from Brooks Ky

    My suggestion/opinion is:

    1. Do not use an original 55-57 Bellhousing or the front motormounts. When mounted that way, the transmission is hanging from the back of the bellhousing with no support. There are a lot of 4 speeds out there that have cracked cases or missing mounting ears from engines less capable than a 383. I would use some side mounts and a rear cross menber for best strength/support. I'd mount whatever type exhaust you plan to use and see where they allow the best side mount location. If there is room in front and around the steering box, you might want to shift the whole engine forward an inch or two. That may allow for clearance of the larger distributor.

    For a clutch, I'd look at a cable pull clutch like the 90 or so Mustang used. Very easy to set one up. Hydraulic clutches work great but can be a little harder to get right. I don't like the ones inside the bellhousing because they are harder to replace and usually more expensive. If hydraulic, or cable look for one of the GM truck bellhousings with a flange on the side to mount the slave cylinder or cable set up.
    Here are some examples:

    As @squirrel pointed out below, I mislabeled the pictures I attached. Sorry about that, and thanks to Jim for pointing it out. I have deleted those pictures and hopefully these will be correct. No excuses.
    There is some confusing data on just what some of these housings came from and the correct name for them, so basically I'd look for eighties or so truck bellhousings and there may be some cars that had workable ones as well. Probably the easiest and cheapest ways is one of the kits to convert other housings to use an external slave cylinder. Again my apologies for not checking closer.

    Bellhousing  F Body 1.jpeg

    15530202 Bellhousing.jpg
    Truck Bellhousing x.jpg

    Retrofit Hydraulic Clutch Kit 1.jpeg
    Retrofit Hydraulic Clutch Kit 2.jpeg
    View attachment 6202640
    View attachment 6202641
    View attachment 6202643
    Bellhousing Bracket xxk.jpg
    Bellhousing Diameters 001.jpg

    Talk to @HOTRODPRIMER about the cable set ups.........

    2. Since you have a 383, I'd get a Tremec 5 speed. Somewhat expensive, but it will hold up and it will make cruising a lot more affordable and enjoyable. Which will cost more ? A muncie will be well used and if you damage it, what is its value or what will it cost to repair? The Tremec will hold up and still be worth 75-80% of what you paid for it 10 years from now. Its one of those situations where you pay up front and it pays dividends over time. :)
     
    Last edited: Oct 4, 2024
    VANDENPLAS and Steve Ray like this.
  26. I’m doing one of the kits with side mounts and a cross member for the trans
    Keeping the t5 and doing a shifter mod as posted above to keep things simple .

    I’ll keep you guys posted .
     
  27. I’m doing one of the kits with side mounts and a cross member for the trans
    Keeping the t5 and doing a shifter mod as posted above to keep things simple .

    I’ll keep you guys posted .
     
  28. 6sally6
    Joined: Feb 16, 2014
    Posts: 2,936

    6sally6
    Member

    6sally6
     
  29. Johnny Gee
    Joined: Dec 3, 2009
    Posts: 14,430

    Johnny Gee
    Member
    from Downey, Ca

    IMG_3151.jpeg
    :D
    upload_2024-10-3_17-17-31.gif
     

    Attached Files:

    VANDENPLAS and 427 sleeper 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.