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Projects Questions on my 235 engine

Discussion in 'The Hokey Ass Message Board' started by ol-nobull, Mar 6, 2014.

  1. ol-nobull
    Joined: Oct 16, 2013
    Posts: 1,655

    ol-nobull
    Member

    Hi. We are almost done putting toghether my rebuilt 1957 235 engine & would like some input from you guys more experienced in this engine than me. My last 6 was way back in the 50's with a 216 in my old 49 coupe that got me thru high school and the original stock 216 that was in this 46 coupe until it thrashed.
    Putting this 235 in my 46 coupe with the following engine mods -
    848 head with just a slight dress up of the head surface, Hardened valves & seats, 0.060 bore with flat top pistons, 264 grind Clifford cam with new hardened solid lifters, new push rods & heavy springs & keepers, Clifford dual intake with two 2 barrell Webber 36-38 carbs & progressive linkage as well as a set of the shorty tube headers & X pipe & dual exhaust. Mufflers undecided yet but would like a medium old style 6 cly Chevy rap but not a modern muscle car sound. This will be a daily driver & will get a lot of Hwy miles. It is not going to be a racer.
    I think that the 0.060 bore should give me something in the high 250's for C.I. & would like input on that as well as a good guess to the Horse power it should develop with these mods.
    I am running the original 3 on the tree & for now the original 355 rear but plan to change it to the 338 whenever that ring & pinion set comes in.
    I would like to stay with the 600/16 tires but will likely swap to the radials to make it a better Hwy driver.
    I want an original look for the exterior & interior with just the changes under the hood & gearing & exhaust. I likely will add a vintage air unit once I get all this stuff done if I have enough money left.
    Looking forward to comments on this build.
    I need to figure out how to post a photo & I will get it done. My photo's are only hosted on my computer. I did look in my preferences here I on avitars & photo it was checked no
    Thanks, Jimnmie
     
  2. RichFox
    Joined: Dec 3, 2006
    Posts: 10,020

    RichFox
    Member Emeritus

    Simple math gives me 243.643 cubic inches.
     
  3. mechanic58
    Joined: Mar 21, 2010
    Posts: 681

    mechanic58
    Member

    Jim, I use photobucket.com to host all my car junk photos. You can open a free account with tons of space to use to upload your photos to. Once you get them uploaded on there photobucket will display a series of links under each photo. Copy the one that is labeled "direct" and paste it in between these html markers in the text of your post:

    [​IMG]

    It's very easy.
     
  4. mechanic58
    Joined: Mar 21, 2010
    Posts: 681

    mechanic58
    Member

    Oh, and cubic inch displacement calculated like this:

    1/2 the bore dia, squared, times pi, times the stroke times the number of cylinders.

    Or you could say the bore radius, squared, etc. The end result is the same.
     
  5. RichFox
    Joined: Dec 3, 2006
    Posts: 10,020

    RichFox
    Member Emeritus

    I used the Bore X bore X .7854 X stroke X number of cylinders. A little easier and very close. This is the way engines are measured by the SCTA
     
  6. mechanic58
    Joined: Mar 21, 2010
    Posts: 681

    mechanic58
    Member

    That math works out exactly the same, its just a different way of doing it. I've always done it the other way.
     
  7. 302GMC
    Joined: Dec 15, 2005
    Posts: 8,489

    302GMC
    Member
    from Idaho

    And your rear axle is a 4.11 ... with the power you'll have, I hope you went bigger on the clutch. Stock up on spare trans parts & RH axle shafts ...
     

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