Well the fan location on a LS engine (waterpump centerline) is indeed lower than the original straight 6 so thats why the fan was to low. I had a electric fan from my previous car builds so i slapped that on without skipping a beat. They work better anyways. If I didn’t use the stock driveshaft I wouldn’t have had to dent or touch the firewall in any way. But i set the motor basically against stock bellhousing location. If it was 3/4” foward it would be fine. I also offset it to the pass side at least a full inch. Most v8’s are in these trucks. Has no effect on anything anyways. Im curious why you would want to cut the stock firewall though and not make a dent that nobody would notice. And the dent is actually easily reversed from other side if you sold it or changed setups. Your also gonna run into issues with the stock brake pedal and if you use column shift that stuff too.
