454 crusader question

[Chris Burkard]

My guess is General Motors makes adjustments to engines and Crusader has to adjust for those changes as they are made when the marinize the engines. The engines are not built with boats in mind, they are built for cars and trucks and it is up other users of the engines to adjust them to their needs. Perhaps they changed the pulley set up that year causing Crusader to make a pump change. Just a guess.

Sincerely,