Quote:
Originally Posted by Scott Stoneburg
Why did you switch to a shorter stroke? For durability or will it make more power with the shorter stroke?
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Less stress on internal parts, with more RPM. I don't think we were at the limit of power with the 4.5 stroke yet, but we were out of RPM. The majority of current big power power boosted Pontiac are in the 480 to 500cid range.