http://www.jasperengines.com/

"JASPER remanufactured engines are built to meet or exceed OEM specifications, and have a 3 year/100,000 mile nationwide, transferable warranty. Remember, this is a completely remanufactured engine with all new wear parts, tight tolerances and run-tested reliability.

They've been around for 65 years. I've wound-out Sweet's Jasper-rebuilt 261 and it is indeed Sweet.

Unless you have found a local rebuilder who has recently rebuilt a 235/261, do not take a chance on a local rebuild.