BretW
03-17-2026, 07:29 AM
Just wanted to post this here, since I didn't find any info on the UMI mount kit before I bought it. I swapped in a F1A-94 Procharged 427 with LS next pro block with these mounts and the fitment was exceptional. I used American racing 2" main tube and 3" collector headers, which I was very pleased with the quality and fit. I used my die grinder to clearance the upper rear corner of the driver side motor mount as it contacted one tube. I probably took an 1/8" off to give it plenty of clearance. I also had to clearance the motor plate and quicktime SFI bellhousing by the starter bump out to keep from touching a tube. If you are using a stock type bellhousing, this wouldn't be required. The Procharger kit is cog drive with early F body accessory fitment. I used a type 2 GM PS pump with .66 shaft diameter and the Holley 5.75 ps pulley, PN 97-154, which clears the factory steering box location. On the other side, I used the ICT billet A/C mounting kit PN 551137-LS74-2. This kit uses a shorter sanden a/c compressor and clears the front crossmember with no mods needed. I did have to mill a section on the ICT main bracket to fit the LSnext block. The Dart block has a more substantial mounting point than the factory block, so I had to mill out a 1x1 section on back of bracket to sit flush against block. Again, would not be needed on a factory block