Comparison 340 / 289

daredevil said

not a ford man myself but my dad had a 70 mach 1 with a cleveland and a few upgrades that 340s wouldnt touch in the 70s. the runners in the heads are as big as rb runners. next time youre in a big machine shop take a look. the cleveland heads are impressive. ok now you can jump all over me.lol

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The 351C was one hell of an engine. Canted valves, big ports and valves right from the factory. 2.05" I and 1.65" E on the 2 bbl version and 2.19" I and 1.71" E on the 4 bbl heads. They were impressive. The ports on the 4bbl heads were HUGE! They could be had in a closed chamber version too.