Yes I've heard of it. In fact I have one i'm building for my bodyshop buddy's '72 RoadRunner. I turned a 383 forging to 3.545" stroke x 4.375" bore= 426.33 ci. I'm using a 6.7" Rod with a Mahle piston with a 1.32" CHT.
< Correction it is a 1.480" CHT-I've got a lot of builds going on--LOL.I've got a nice solid lifter Hughes grind going in it. The plan is to build HP up to and beyond 7000 rpm for some roadracing style fun. The bottom end photos show how the short stroke and long rod doesn't pull the piston skirt out of the bore at BDC. Judging how easy this thing is to turn over I think this should make some power AND last a long time. J.Rob
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