Piston knurling is an old-school tactic for restoring function (temporarily) by taking up the clearance. Works kinda OK for low-rpm tractors n such. I have some old Caterpillar shop magazines from WWII with tips for getting a little more service from worn out engines, when all the new parts were going into wartime production and repair. Heavy ridge reaming, knurling, shimming bearings etc., anything to keep them running reasonably well. High oil consumption was to be expected lol. The old CAT Master Mechanic who gave them to me started out on destroyers in the Pacific in WWII

I've done three 63s, one convertible and two XLs. That frame mount Jim posted worked, all the driveshafts and yokes were the same. Have to change the starter and flex plate. I had to do something to the emergency brake cable but got it to work.

OK, this one is a convertible XL with the big console and shifter. Was the convertible you did an XL? Frame/ crossmember is quite different from a hardtop in that area. Considering the swap because the old 390 still runs great, but I have all these 427s.... Also have a couple sets of shorty cast manifolds that would probably fit

If it's aluminum bodied, Kirkham or Shelby.

Negative- hand-fabricated chassis and body, second one he's done from scratch, and VERY accurate. Y'all come visit, Open Days once a month, and other special events- I am "The Engine Room Guy". Original cars in there that I watched race at Watkins Glen in the 60's. We were just open all week during the Pebble Beach show, and SAAC had an event at Sears Point the same weekend. We moved all the cars out of the main room on Friday morning and set up for dinner for 350 in the room, broke it all down that night and brought all the cars back in Saturday morning- I personally wiped every car down as they came in. BTW Brent, I walked one of the Kirkhams thru the Engine Room on Friday. Peter Brock, Aaron Shelby and Tony Hunt are regular special guests, and Friday brought out Rick Kopec and Lynn Park and a very rare gathering of the genuine FIA race 289 Cobras, several in original paint. The second Dragonsnake, Dan Gurney's "Rabbit", and two of the movie cars from Ford v Ferrari that Tony Hunt drove. A whole row of early GT-350s, including the first R-Model. Did I mention that I love my job? 

https://cobraexperience.org/

I have a couple sets of originals if you're in a REAL hurry lol

Forgot I had a couple pics

Cam should be quite small- the Industrials were also used on things like wind machines- and yes, occasionally an off-spec 427 block without crossbolts. Some of the Industrial 428's came with leftover 428SCJ pistons- I have seen 3 wind machine engines that way

Actually the "side-oiler" technology dates back at least to the late '30's

Yes sir, thank you.  I'll edit my post.

Didn't want to say anything lol