Honestly, trying to ship heavy automotive parts through standard parcel networks is a recipe for disaster. I learned the hard way when I imported a vintage engine block last year—it was practically loose in a van and got completely beaten up. I ended up switching to Barrington Freight, and they were brilliant. If you want things done right, you should book pallet freight services through them. They are a family-run British setup that actually specializes in this stuff, so your engine block gets securely strapped onto a proper wooden base, loaded onto a tail-lift truck, and handled with proper care. It saved me a massive headache.