My engine builder has had 2 Molnar cranks break within 100 hrs on a marine engine. I just asked him today about these and the Ohio kits and he has never worked with the Ohio stuff but has an engine builder friend with 2 and is going to question him on his experience with them for me this week. Also I called Ohio crank today and it isn't on their website but they do sell the 4.1" crank alone for 840.00. I'm thinking the Previous poster may be right. Buy the pieces not as a kit and have my machinist double check everything and make it perfect if needed before getting the bearings. Also I noticed while looking at their rods that they offer a 6.250" rod. I remember the original poster mentioning the rods. That makes for a 1.524 RTSR. What are you guys doing to your blocks to strengthen them for these kits?
