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Thread: 69 350 code RP 267

  1. #1
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    69 350 code RP 267

    What is the compression ratio for the code RP 267 1969 year engine
    (curious about fuel etc....) Please and Thank you

  2. #2
    10.25:1 advertised, but most Buick V8s engines were actually .5-.75 lower then advertised in reality.
    Steve B.



    67 GS 525 Buick Stage IV
    66 GS Convertible
    65 GS HT
    63 Riv
    02 Subaru WRX Turbo
    03 Ford Cobra Convertible (Factory Supercharged)

  3. #3
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    Dr. F--thank you for the info. As usual it is appreciated.
    Will I need to run premium gas or get by with regular gasoline?

  4. #4
    You could try the mid grade and see if it pings. Be prepared to back off some ignition timing until it doesn't ping if you try it.
    Steve B.



    67 GS 525 Buick Stage IV
    66 GS Convertible
    65 GS HT
    63 Riv
    02 Subaru WRX Turbo
    03 Ford Cobra Convertible (Factory Supercharged)

  5. #5
    other pinging alternatives include:
    100LL AvGas
    racing fuel
    leaded fuel additives / octane boosters


    use http://airnav.com/fuel/local.html to find an FBO near you. my lowest local price is $3.66 / gal



    but most Buick V8s engines were actually .5-.75 lower then advertised in reality.


    umm, wasn't that true of pretty much everything out of Detroit back then? that was the whole point of "blueprinting" engines.
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