So I bought an old Ford Ranger from a guy who made a mini dragster out of it by putting in a Blueprint 306 with a modified C4 transmission which only had a verified 48 miles on it. I just wanted the drivetrain for my '65 mustang, so I found a local Hot Rod shop to do all the swap work. Long story short, He gets it running in my car, but the engine has a major vibration at around 1800rpm and gets worse as it revs. He thinks it's something with the actual engine because he verified the numbers on the flywheel and harmonic balancer to be the correct ones. So we call up Blueprint and they have us ship it back for inspection because it's still under warranty. Upon their inspection, it turns out that the flywheel was off by 73 grams...even though it has the correct part number. Thankfully Blueprint is not going to charge me for the inspection, but now my mechanic wants to charge me $1500 for the time it took him to pull the engine out, and now to put it back in. I'm obviously pissed at the manufacturer of the flywheel, but I sorta feel my guy, as a "professional car builder" should have suspected that and tried a different flywheel before going through all the work to pull the engine out. This engine swap already went way over budget and now I'm supposed to be on the hook for this $1500?
Thoughts?
Thoughts?