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Compression ratio

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Old Sep 1, 2015 | 06:49 PM
  #1  
montvaleplace's Avatar
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Compression ratio

What compression ratios were available in the 1971 toronado 455?
Old Sep 1, 2015 | 07:41 PM
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svnt442's Avatar
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Scroll down to second generation

https://en.wikipedia.org/wiki/Oldsmobile_Toronado
Old Sep 1, 2015 | 07:41 PM
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I believe it dropped down to 8.5:1. In 1971 auto makers were easing into the new EPA mandates to run on unleaded regular fuel.
Old Sep 1, 2015 | 08:02 PM
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ALL Oldsmobile engines in 1971, including the Actionline 6 and the 350 and 455 V-8s, regardless of application, had 8.5 to 1 compression ratios. No other compression ratios were offered.
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