i just picked up an 18' cobia sportster with a 120? 140? i/o. i bought the boat with a blown motor. im new to boats (im a car guy) so im looking for any info on repowering this boat maybe with a newer v-6 maybe v-8 if it can handle it. any motors that might bolt right in. does anymotor with the right bellhousing bolt to my outdrive? im clueless when it comes to this. any help would be great.