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Thread: BBC hp et estimates...

  1. #1
    Senior Member EXPERT BUILDER
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    BBC hp et estimates...

    Ok I have asked this before, but my combo has changed alot since i asked.

    I bought a set of 188 heads from a friend that were "good to go" I get them to the machine shop and they are 2.19's not 2.25's as he said and the springs were mismatched and some broke. With friends like that who needs enemies!!!

    Anyhow I have a 468 with 12.5:1 compression. Gm steel crank, 7/16" dimple rods, a Lunati .753 / .712 roller cam with 280 / 290 duration at .050, and 110 lobe centerline.

    The heads I ended up getting are ProTopline aluminum 320cc runner with 2.25 / 1.88 valves.

    Topped with a Super victor intake and holley 8896 1050 dominator.

    My car is a 1900 pound hardtail dragster with 5800 stall 8" converter and 4.86 gears (set up for 1/8 mile).

    I wont have the motor back for over a week and I was wondering what everyone thought about this combo and what hp / et I might be looking for.

    Any idea of what my 188 heads are worth with newer manley 2.19 / 1.88 valves and a little clean up port work. with or without the mismatched 1.625 springs keepers and retainers...

    Thank you all
    Josh VanHorne

    1964 Chevy Nova
    Worlds quickest and fastest tow truck. (9.92 @ 137)

    http://static.racingjunk.com/63/ui/7...247837-479.jpg

    http://www.racingjunk.com/profile/211708

  2. #2
    Senior Member RACING JUNKIE
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    what is a "188" head ?

  3. #3
    Senior Member EXPERT BUILDER
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    they are a gm casting that ends in 188..
    Josh VanHorne

    1964 Chevy Nova
    Worlds quickest and fastest tow truck. (9.92 @ 137)

    http://static.racingjunk.com/63/ui/7...247837-479.jpg

    http://www.racingjunk.com/profile/211708

  4. #4
    Senior Member MASTER BUILDER
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    Quote Originally Posted by Tod74
    what is a "188" head ?
    They are a 118 cc open chamber retangle port head. Basically they are the same as a GM 990 head.

  5. #5
    Senior Member EXPERT BUILDER
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    Much better desription... I sold the 188 heads already...

    Any guesses at the Hp or et????
    Josh VanHorne

    1964 Chevy Nova
    Worlds quickest and fastest tow truck. (9.92 @ 137)

    http://static.racingjunk.com/63/ui/7...247837-479.jpg

    http://www.racingjunk.com/profile/211708


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