stroke to rod ratio:

[Marv D]

Theres a point where you have no choice tho. take a 4" stroke and stuff into a sbc package and you can't use a 5.7 rod. It just doesn't clear the counterweights. Well,,, I've seen guys chuck up a crank and turn the counterweights down to nothing and then add back bucketloads of mallory to get it in balance. But WHY??? Common sense says in a stroker application your stuck with the long rod,, ring pack be damn'd. Other than the piston stability at TDC the ring pack thing doesn't scare me a bit. With Childs Plasma Moly rings, a torque plate honed bore, setting ring gap for N/A I typically see a 1.5-2% leak on a fresh motor. after 2-3 seasons of hard abuse still above 4% so ring seal and oil control is not a issue with the proper oil rail support and ring and bore prep. We just get back to the issue of side loading the bore with a short rod,,,