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Thread: 477 build up
          
   
   

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  1. #1
    MrB87 is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: 87 Olds Cutlass Supreme
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    477 build up

     



    I have a 477 short block. It is 14:1 with 6.385 aluminum rods. I'm looking for 875hp at the flywheel. I was told to stay around 310cfms and find the biggest cam I can. Lol . I know that the carb intake cam and heads have to be in sync to produce real hp.
    Any advice would be greatly appreciated

  2. #2
    jerry clayton's Avatar
    jerry clayton is offline CHR Member Visit my Photo Gallery
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    I take it this isn't for a street car!!!!!!!!!!since you already have the pistons, cylinder heads will have to clear piston domes so it might be a bit touchie gettin this one up and running

  3. #3
    MrB87 is offline CHR Member Visit my Photo Gallery
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    This will be a track only car. I'm not sure of the vehicle yet

  4. #4
    MrB87 is offline CHR Member Visit my Photo Gallery
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    How would I measure the ccs of the dome to help in picking the correct head for my motor. It's a Manley .100 over 14:1 piston

  5. #5
    jerry clayton's Avatar
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    Its not a matter of measuring for ccs--its a matter of clearance piston to head chamber----------and valve size and location/angle----many of the current heads available have swirl chambers, open/closed, valves moved, angles changed---

    but you can place the piston down the hole a known distance, fiqure the CCs for the bore size x that distance and CC it---the differance between the calculated number and what it CCs is the net dome CC size------

  6. #6
    MrB87 is offline CHR Member Visit my Photo Gallery
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    Ok thanks looks like I'll be takin a trip to the local engine builders shop for assistance

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