I have a customer that wants to swap his V-6 out for a small block V-8. He has an 85 Cutlass supreme with the V-6. He has an 81 Cutlass Supreme with the V-8. He wants to put the 81's V-8 into the 85. Are the bolt patterns the same? My AllData program doesn't cover back to 81's. Any information will be greatly appreciated. You can email me at
themobilemechanic@comcast.net