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'87 454 pistons

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by mountainexplorer, Jan 8, 2002.

  1. mountainexplorer

    mountainexplorer 1/2 ton status

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    \'87 454 pistons

    I have an '87 one ton 4x4 that I just bought with a 454. I would assume that this '87 454, being a smogger motor, would have dished pistons. I also have a '91 454 (2 bolt main)out of a tow truck and would assume the same for it. Does anyone know if that would be correct? What would the stock compression ratio's be for these?
     
  2. 425 Xpedition

    425 Xpedition 1/2 ton status

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    Re: \'87 454 pistons

    The listed compression on my '90 454 is 7.8 and yes it has dished pistons.

    1990 Crew Cab, 14" lift , 39 x 18 Mickeys, 16.5 x 14 Welds, Dana 60 & 14 bolt, Traclock & Detroit Locker, 4.56gears, 454TBI, Turbo 400, 205
     

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