I have been getting water in my engine oil. So i decided to pull heads and intake and take a look see what was going on. When i did i discovered intake manifold gasket was no good. I ordered a gasket set and replaced all gaskets and reassembled motor. To my dismay still getting water in the oil. I probably ran the motor for a total of 1/2 hr. Assuming there is a crack in the block. I just purchased a junkyard block and am preparing to rebuild motor. One question i have is can i reuse head gaskets. Im trying to keep the cost of this project down because the boat is not probably not worth the work im putting into it but figured it would be a good project. (excuse to keep me in the garage haha) also i would accept any pointers on this rebuild job.