Mike,

I replied to your PM re: strokers...I'd only add that you can;t go wrong going to Dan Costello and following his advice to a Tee. He did a 4.15" to 4.30" offset grind and main turn down for my 517B off an Old MP 4340 crank for me and the machine work was flawless and turns in the block like it was on roller bearings. In addition to that he called me and asked in advance how I wanted the bearing clearances set and the job was delivered on time and for the very fair price he promised.

A general comment on Strokers is that any time you up the cubes into a stock block you're 'using up some durability 'safety margin' by subjecting the block to piston velocities and side loading well beyond anything it was originally intended to see. Expert block prep is another key to reliability and if there is one "mistake" I see a lot of guys make is that they chase too much RPM in their combos rather than simply tune their chassis to ET on the abundant excesses of torque. Just because you can doesn't always mean you should and raising the torque peaks and shift points too high usually doesn't net enough of a real and consistent ET gain to offset all the higher stresses and longevity compromises many bracket racers make to get them.