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  1. #1
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    Default 550hp true street 408 clevo dyno results

    haven't been on here for awhile so busy its hard to find the time these days, anyway for those interested we built a true street 408 Cleveland with hydraulic roller cam and dual plane, we could have made a bit more horsepower but we mainly were interested in the torque figures also, heres a quick run down.
    std block
    408ci
    11.6 comp
    240@050 hyd roller cam
    CHI 3v 208cc heads
    CH dual plane
    750 quck fuel
    ICE ignition
    1 3/4 4into1 pipes
    bp98 fuel
    550hp @6000
    538ftlb tq @4450
    http://i141.photobucket.com/albums/r...g?t=1447516627

    Last edited by paul boz; 16-11-2015 at 03:02 AM.

  2. #2
    Do you ever leave?
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    Nice man, that'll be a lot of fun on the street, peaks nice & early, real strong TQ curve - will live a long time & give it's owner a lot of stupid grins!

    Did you touch up the 3V's at all? - the ones I've seen have been pretty good, but a blend in of the valve job & clean up of the turns was a worthwhile thing for the time it takes.
    I'm not on here much any more - don't bother PM'ing me, chances are I won't read it, just call me on 08 8376 9540 if you need to get hold of me or email knight28@optusnet.com.au, phone is better!

  3. #3
    casual poster INCAGOLD's Avatar
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    Very similar build to my sbc in build specs and almost identical dyno results. Is the cam on a tight lsa(105 or 106)? Customer should be happy last time I raced as driven on the street I put 3:00 diff gears to run in super street , backed off before the end of track and still went 10.97 at 111mph .

  4. #4
    Do you ever leave? HPE PETE's Avatar
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    good results, thats a good street engine with a nice fat TQ curve.

    i am a fan of the 208 CHI its a pretty good head out of the box and killer with some work, can be made to flow big numbers from fairly low lift, i have a set here im doing for a circuit car 2.100 valve 296cfm @ .400 and 330cfm @ .500 lift on initial testing

  5. #5
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    thanks fellas, yep gave it a clean up on the intakes and exhausts, intake flow was @228cfm on my bench on a 4.030 bore fixture, cam was 109 lobe sep so it should have nice vacume and be pretty good on fuel too id say, its going in a XB coupe, with 3500 stall and 3.5 gears

  6. #6
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    Very nice custom grind cam or a of the shelf stick

  7. #7
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    custom grind cam

  8. #8
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    Paul, great results. Nice broad torque curve 500ft-lb from 4K right through with a little bit of HP to boot. Much lift in that cam?

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