A guy called up the shop and asked if we had an impeller for an Alpha 1 Gen 11. Yep! He came and got it. Same guy called the next day and said his engine was still overheating. Bring it to the shop and we'll take a look at it. This guy pulls up with a mid 70's Cobalt with a Mercruiser. He got out of the truck and said he had a hard time getting his new impeller in and had to modify it. This guy cut the blades down to make it fit. Can you believe that??