Going from a 16 rib serpentine drive on a Gen 6 BBC with a B&M 420 mega blower to 8MM drive.
This may be two problems to solve or one if someone knows a slick way to do this???
I need to go from the old 1 1/4" rubber hose to 1/2" NPT on the BDS idler pulley set up.
Here's a pic of the old set up with the 1 1/4" rubber hose going onto a chrome tube bolted onto the water pump holes. I don't think there is a idler deal where the idler bracket bolt's onto the front of the blower with the B&M blower's so, I "think" I need to use the BDS style idler/water inlet spacers? Is there a nice way to get from the 1 1/4" rubber hose down to a T or Y with 1/2" NPT?
Next problem is pulley alignment.
My crank pulley has 3 grooves ( it's a 2 piece deal with 1 1/2 pulleys each half and get's bolted together) and I only need a two groove pulley for the alt and belt driven water pump.
As you can see in the pic, the idler pulley need's to go forward a lot and the crank pulley needs go back (losing 1 groove will help a bit) about 1 3/8".
Is there a easy way to do all this or not?
Thanks for any help, Jim