Main reason we did it was to make as much torque as possible without breaking the bank. The 4.125 stroke is about the limit in terms of reasonable solutions. The next step up requires more money for balancing and you start to have clearance problems with the oil pump pickup, etc.

Power peak with the Stage III heads from Hughes is 5800 rpm which works out to 155+ mph in this car. The car will pull it on the back straight here at Portland International. If we tow to a faster track we might bump up the rev limiter a little bit and see where it stops pulling.

This isn't a drag race motor so we didn't care about big peak numbers. Just looking for a smooth idle and tons of torque down low so the car would be nice and easy to drive.