400/426 Stroker. Ever heard of one?

slimjim said

Can’t seem to find anything on the web about one of these. Any of you build one? Taking this opportunity to test out a long rod ratio. From my assessment, it seems like a reliable combo that would love to rev. What do you think? Doing this as a budget build for a YouTube challenge.

-offset ground 383 crank
-6.7” rods
-440 stroker piston

The STROKER Combo Never Built - Plan Revealed #piggybankhorsepower

Click to expand...

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