Blue print engines, Has anybody use them in a hard running offshore boat a 540 650hp just curious thanks

I didn't have that engine, but years back I got one of their 383 marine engines. It provided years of trouble free service for me. Never a leak or anything. Build quality looked nice.

I know a handful of people local to me running the 350’s and 383’s pretty hard with no issues.

Just saw their 598 short block hit 870HP on Engine Masters. Has me interested.

Search on YouTube for the video where Derek from Vice Grip Garage tours their facility prior to picking up a 540 from them for the Independence Chevelle. Impressive operation.

I helped a friend put one of their 350hp 350 SBC's in a ski boat that takes a fair amount of abuse. Started without issue and has been flawless ever since. (2+ years)

I can’t speak to their marine line but I have one of their full roller 400 SBCs in one of my cars. 500+ hp and tq and it’s been hassle free. I’ll definitely buy another one from them when I need another crate motor.