Bill showed us that a 455 is the better thing to do. The arrows indicate the Poston bolt-on 455 frame mounts that replace the original units that fit either a 300 V-8 or the cool 225 V-6. Remember our "Insane Fun With a Total Beater" '72 Electra? The 455 and TH400 trans is still in the Car Craft shop. We know what to do.