I'm going to come to Jasper Engine's defense, here. The main plant is 6 miles down the road from me.
I had one in an '89 Merc Cougar that I had years ago. Great car. Engine went pop. Took car to Jasper Engines. They did everything. Drove just fine until I sold the car.
Jasper Engine and Transmission, from now on, JET, is a fairly large company. Fleet of tractor-trailers, corporate jets, etc. Always expanding.
All those US Postal vehicles, Jasper engines in those. NASCAR 4 speed trannys, a lot of them are Jasper. Harley approached JET about manufacturing motorcycle engines for the. JET declined. Not really their thing.
If you read it on the internet, it has to be true. If you've hung around this forum, you're convinced all 5.7s eat cams, all dealership service is crap. Bad news travels fast. JET is a thoroughly modern, cutting edge manufacturer. Did you catch the upgraded pistons in the vid? And yes, we southern Indiana Hoosiers are cheerful, and polite (most of , that is!)
If JET ever went public, and sold stock, I'd jump on the chance to buy their stock.