Volvo RWD 120-130 Forum

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Piston Compression Height 120-130

Hello all,
New member here. Recently purchased a 1966 122s with a B20 swap. I was wondering if anyone knows what the piston compression height is for this engine.








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    Piston Compression Height 120-130

    My notes say 1.860"... I think I actually measured a piston once upon a time for some purpose. And in case you didn't already know, it's a perfect flat-top device - no humps, no bumps, no dishes.
    --

    Gary L - 142E ITB race car, 73 1800ES
    BlueBrick Racing Website
    YouTube Racing Videos








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      Piston Compression Height 120-130

      Thank you Gary. I'm going to be doing a rebuild soon so gonna do some measuring myself. I'll post them here so others can see. Reason why I'm asking is because I'm gonna be using Toyota pistons in my rebuild (hopefully). I can get them for $88 a set made by Fed Mogul instead of 350-450 bucks for the Mahles








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        Piston Compression Height 120-130

        I would compare them pretty closely, including weight.
        Back in 1968 I put a set of Rambler pistons into a B16 because they were $4.75 each as opposed to $16.50.
        I had to mill about 0.060" off the top of pistons that were already lighter.
        Ran great for about 40,000 miles then one day at about 70 mph on loop 410 in San Antonio the car filled with smoke. Opened the windows and it was STILL full. Pulled the head and found holes in 2 pistons and cracks in the other 2.







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