1988 sunrunner 195cv motor?

[newtoboating20]

Hello. I've recently inherrited an '88 sunrunner 195cv. i've replaced the starter cellinoid, and was told it needed a new heat exchanger and reservour tank along with a tilt & trim pump valve body. I know it is a 4 cyl , but I'm not sure which motor I have and the boat is currently 300 mi away. I do have the Ser# though. Any help identifying which motor I have so I can start shopping for parts would be really appreciated. I'd love to get her in the water this summer. She's been stored for quite awhile. Cheers.