I believe Steve Bennett is of the opinion that the stock (of either stroke) Type 4 crank is less likely to break than the high dollar 4340 Scat cranks under aircraft usage. If you've never heard of broken Type 4 cranks, you need to email Steve Makish (srmak...@aol.com). I heard him say Saturday that he'd broken three Type 4 cranks (two Scats and one stocker, I believe it was) and Bob Lester's broken one also. Now they're both running a Corvair, which has an excellent history running stock crank and rods...
Mark Langford, Huntsville, AL N56ML "at" hiwaay.net see KR2S project at http://home.hiwaay.net/~langford
