I’m of the same mind, if it breaks, make it better lol.
I’ve had Millennium do lots of cylinders and even some head repair and misc. things, but I’ve never had them do any crank services. I’m curious to see how they hold up. They definitely seem to have the equipment to do a good job, so I imagine they could build a good crank.
It really depends on what size stroker you want to do as to how much is involved. A 3mm short rod will drop in, no mods needed and you can use any shelf piston but it will increase your compression roughly 0.4:1. Once you start veering from that, things get complicated. If you want a long rod stroker you have to find a piston that has a higher compression height. It used to be fairly easy to find a 3mm long rod stroker piston, but I looked high and low last fall and I couldn’t find one. @hawk-trx
and I talked about getting another guy to do a buy-in on four stroker-pistons last fall, he seemed to lose interest, and I only wanted 2, so I wasn’t about to drop $1200 for 4 pistons when I only needed two. I called around and nobody else had them. Seems odd because it is a great stroker motor. If you want a long rod stroker the 4.2 mil stroker is a good option, but that gets pricy, needs case mods, rod mods, and a little work on the small end of the rod for the CRF piston to work properly, and you have to have the small end bushed down to 19mm and use a CRF piston. Morgan says the small end bushing doesn’t last, but mine is still holding up.
Trying to find new stroker combinations is fun, but it takes a ton of time to look up rod lengths, compression heights on pistons, and then doing all the math, but the 4.2 mil is a proven setup. My 4.2 stroker is going back together as a 575, so we’ll see how much longer it lasts lol.
If you are wanting to reuse your top-end you really only have two options, SS, or 3mm stroker.
Sorry for the long winded posts, it’s just fun to actually talk some tech!!!