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the 4 bbl. version was 335 horse and the tri power version was 360 horse.

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Q: What is the horsepower for a 1966 Pontiac gto 389 engine?
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What size engine is a 1966 pontiact gto?

389 cubic-inch. 360 horsepower


Will a 400 intake fit 389?

An intake from a Pontiac 400 will fit a 389 as long as the engine, or more specifically, the heads are from model year 1965 or 1966.


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1964 Standard 389 4bbl had 325 horsepower. Optional 389 Tri-power had 348 Horsepower


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Ignition timing for Pontiac 389 ci?

Info at this site might be helpful. http://www.justanswer.com/questions/2zzo6-timing-a-1966-pontiac-gto-389-with-tri-power-what-is-the-best


What size engine in your 1967 catalina?

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