Difference between brad 8 and brad 8x heads

Discussion in 'Manton Push Rods Top Alcohol Tech Questions' started by drew556, Dec 5, 2017.

  1. drew556

    drew556 New Member

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    looking to upgrade heads wanting to know what the difference between the brad 8 and 8x heads are
     
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  2. kosky racing

    kosky racing Comp Eliminator

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    The X usually stands for the ex.flange angle
     
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  3. drew556

    drew556 New Member

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    Does that make a horse power or performance difference. Do they have different angles for dragster vs funny car ?
     
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  4. kosky racing

    kosky racing Comp Eliminator

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    I don't believe BAE rates H.P. or performance for there heads usually newer are supposed to be better -
     
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  5. Soldierboy0098

    Soldierboy0098 Active Member

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    If I remember correctly the 8X has larger valves and sometime right around the 8 and 8X heads they changed the exhaust flange angles.

    Hope that helps,
    Trev
     
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  6. Mike Canter

    Mike Canter Top Dragster

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    Talked to BAE. The valves are the same diameter it is the angle of the exhaust port and the short turn length of the exhaust runner
     
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  7. TD 4028

    TD 4028 Member

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    I have a set of 8x fresh with valves and springs for sale if your looking for a set.
    $4500
     
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