I used a Autokraft oil pan with my swap. I am using a LQ4 with a Tremec T-56. I was able to get the motor and transmission mounted with out cutting the firewall. There was some small massaging with a 2lb ball peen hammer. The trick to getting the motor in with the clutch and bellhousing attached is to drop the K members about 3 inches and it pops right in. Then bolt the K member back up and bolt the motor down.