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chevy small block question

Discussion in 'The Hokey Ass Message Board' started by katmandoo, Oct 4, 2006.

  1. katmandoo
    Joined: Oct 4, 2006
    Posts: 30

    katmandoo
    Member

    32 Chevy I Want To Possibly Make A 350 Out Of My 327/302 Block Using A 305 Crank. Thanks For The Reply
     
  2. Fat Hack
    Joined: Nov 30, 2002
    Posts: 7,709

    Fat Hack
    Member
    from Detroit

    (Head smacking forehead)....YES to the 302/327 block with 305 crank to make a 350!
     
  3. katmandoo
    Joined: Oct 4, 2006
    Posts: 30

    katmandoo
    Member

    Thankyou Fat Hack I Thought So Originally Sorry To Make Things So Difficult. It Probably Would Of Took About 2 Posts To Clear This Up If I Gave Proper Info From The Start!! Thankyou For All Your Input And Patience
     
  4. 32chevysedan
    Joined: Jun 11, 2006
    Posts: 377

    32chevysedan
    Member
    from Texas

    Thats cool, but 350s are a dime a dozen use it as a 327 or 302. Or just locate a complete 350 bottom end, that would be simple. I understand that you may want to save money using your block, but you could probably pick up a 350 for $50 easy that just needs a crank kit. Just my thought
     
  5. BradH
    Joined: Sep 26, 2006
    Posts: 32

    BradH
    Member

    Yep, straight bolt in. Just get 350 pistons and you are in. No bore job needed either unless your block is worn. 302/327/350 are all the same bore. As mentioned before by Hackerbill a balance job would be a good idea. If you actually have a 302 it has serious value. Pull the top end off the engine and measure the stroke. It will be 3.00 for a 302. The 302 will also have a solid cam. I doubt you have a 302 but stranger things have happened.
     
  6. katmandoo
    Joined: Oct 4, 2006
    Posts: 30

    katmandoo
    Member

    Brad What Makes It So Valuable The Crank?
     
  7. katmandoo
    Joined: Oct 4, 2006
    Posts: 30

    katmandoo
    Member

    32 Chevy The Reason Being Is That I Have To Bore The Cylinders And Get New Pistons Anyway And I Have A 305 Crank So I Was Just Pondering Wheather I Should Convert It To 350 Since I Had To Do The Work And Buy Pistons.
     
  8. BradH
    Joined: Sep 26, 2006
    Posts: 32

    BradH
    Member

    The 290 HP 302 was used in 68/69 Z28 Camaros only. It had a healthy solid cam and dome pistons. They are super rare and lots of Z28 owners would pay you big bucks for one. I'm not sure what they are going for these days since I have never actually seen one for sale but I bet you could by a GM 350 crate engine for what you could get out of a complete original 302. Most likely you have a large journal 327.
     
  9. katmandoo
    Joined: Oct 4, 2006
    Posts: 30

    katmandoo
    Member

    what are the real benefits to a 327 or a 350
     
  10. 53sled
    Joined: Jul 5, 2005
    Posts: 5,817

    53sled
    Member
    from KCMO

    1. you don't need a new post for a new sentence. paragraphs are allowed.
    2. go through the back issues of hot rod and find the 800 articles on stroker sbc's.
    3. a 307 crank in a 400 is a 350, too look here and [url="http://experts.about.com/e/c/ch/Chevrolet_Small-Block_engine.htm]here[/url]for more info all in 1 page
    4. bookmark mortec.com
     
  11. Fat Hack
    Joined: Nov 30, 2002
    Posts: 7,709

    Fat Hack
    Member
    from Detroit

    A 350 is cheapest to build (pistons cost less) and you get 23 more cubes to work with in the bargain.

    A 327 sounds cool when you're telling everyone what you're running.

    At the end of the day, the only difference is the lenth of the stroke (that sounded kinda funny!)...the 350 will tend to be a little stronger in the low-mid range, where the 327 may rev a bit faster. The difference is pretty minimal, though. For the price savings, a 350 can be built to scream if desired and will always be the best "go to" small block for all around cheap and reliable performance in my book.

    Do what suits ya, Man!
     
  12. arkracing
    Joined: Feb 7, 2005
    Posts: 891

    arkracing
    Member

    Caution: some 305's actaully had a 3.45" stroke not a 3.48" stroke like the 350 - may not be a big differance but when dealing with deck heights etc. it may make a big differance

    3.75" bore with a 3.48" stroke = 307cid
    3.75" bore with a 3.45" stroke = 305cid
    Mortec says that a 305 is:
    3.74" bore witha 3.48" stroke (but when you do the actual math you get a 306ccid)

    sounds to me like you want to build a 350 but using the parts that you already have.

    heres a little suggestion - go buy a 350 for cheap $$ and put a cam &timing chain in it and regasket it.

    you have to bore your 327 block anyway so what differance does it make?

    you can get running 350's for less than $500
    by then time you bore your block and get all the right parts you'll be well over $500.

    if you put the 305 crank in the 327 block you still end up with a 350(ish) - if you tell people you have a 327 cause it sounds cool - then put a small balancer on a 350 and tell them the same thing - they can't see the stroke of the crank.
     

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