Quote:
Originally Posted by Purdy Swoft
Dave, I enjoyed reading your post and value your input. You say that you figure that the Lion 111 gives 13 more horsepower than the 5.9 BF head. This is very interesting. I'm wondering if your lion head is six to one or seven to one? Thanks Purdy .
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Purdy, Yes, 13 more HP as indicated from my dyno. (You can feel 13 HP when you step on the pedal!) The head is a 6.5:1 compression ratio if installed on a stock bore. My test engine is over-bored .080" so it is just short of 7:1 actual compression ratio...if my calc's are correct....sometimes they are not!
