I plan on installing an oil cooler as part of my rebuild. 15.5', Aluminum Jetboat, 406sbc. Rexmar has a 2" model that has 3/4 water ports. I was thinking about running my block cooling water through the oil cooler first (kinda like having the water pass through jacketed manifolds as a preheater). I also run a pressure regulator set at 16 psi. Anybody tried any thing like this? Would I still have enough cooling capacity for my block?