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SBC 406 build?

Discussion in 'Engine Swaps & Builds' started by bobkyle2, Aug 26, 2013.

  1. 66nova

    66nova Doctor Bob - Fastest Doctor Around

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  2. bobkyle2

    bobkyle2 BAMF club

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    ok, Thanks.
     
  3. PenguinLTZ

    PenguinLTZ I'm too LAZY to Choose a Custom Title!!!

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    My last SBC build I did for my Blazer toasted the trans and diff in short order. Heavy rigs.

    It is the only 12 bolt diff I ever detroyed :lol:

    The TH400 got replaced with a TH350. Damn I miss that Blazer. It is in my long list of regretted sales. :(

    I foolishly traded it for a 85 1500 with a 6" lift and 35s...with a 305 :facepalm:

    I was young and dumb and wanted a Silverado with all the bells and whistles. What a POS that truck was.

    Looking forward to your progress!
     
  4. slims

    slims If you cant have the truck you love, love the truc

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    That should clean up. Ill try to watch this build. I know nothing about vortec stuff....
     
  5. bobkyle2

    bobkyle2 BAMF club

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    Yeah, I have a B&M trans, With the upgraded baskets and shafts. Its a TH350.

    It has 12bolts now, Probably going to need some work. The previous engine was a 468, and used up the life in the drive shafts and axle's .... I will be going through the axles too.
     
  6. 66nova

    66nova Doctor Bob - Fastest Doctor Around

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    :thumbs:

    Glad to help!
     
  7. 66nova

    66nova Doctor Bob - Fastest Doctor Around

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    Make sure you put a good aftermarket differential cover on that 12 bolt. That will help or survive.
     
  8. bobkyle2

    bobkyle2 BAMF club

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    I don't know alot about heads and high compression pistons.

    But i will be running a .200 dome... Will that be ok to run on 64cc heads?

    I'm thinking about biting the bullet and going for a set of pro comp aluminum heads. They are 205cc runners and 64cc combustion chamber.

    That would get my compression ratio right at 13:1....
     
  9. 66nova

    66nova Doctor Bob - Fastest Doctor Around

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    Yeah, depending on your deck height and what head gasket you used you could be even higher than 13:1.

    I love high compression motors, but if you want to run 13:1 you will have to use race fuel or that thing will detonate like a bitch.

    If you want to run just premium pump gas you need to keep the compression around 10.5:1 with iron heads or you can get by with 11.5:1 with aluminum heads.
     
  10. bobkyle2

    bobkyle2 BAMF club

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    Ok, Thats good. The block has never been decked or anything. Waiting on the block from the machineshop before i actually order pistons. I'm pretty sure it will clean up without boring it again.


    Yeah, I run Sunoco 110... About the only stuff i can get around here. And its fairly cheap if you buy it by the barrels. And its strictly off road truck. And will probably only be ran a couple passes a race.
     

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