Working on a 1988 liberator 241 bravo 1. Curious if anyone has any experience putting power in these hulls? How would they response with 600hp or even a stock 502?

Not sure on the 241, but I had a 261 that we did completely and took the 460's up to over 500 hp each. Made for a great boat.
The liberator is a great fit and finish boat, hull design is great for wave crushing. Makes for a smooth ride.

I had King Cobras OMC's in mine,, I see you have bravo. 600 would be good for that boat I would bet. Stock 502 would also be fine.

Had a 241, 600HP 540. Boat ran right at 70mph. Not a fast hull, but solid boat.

Had a 241 as well 86, ordered it new, worked on the small block, not fast, just low 50's but nice well built boat..