Thnks

Hayden 16" 2300 cfm

I've done a little research and came up with Ford part # C5OE-8509-A. It's 6.11" Diameter 2.43" Depth and there are new ones offered by Mac's if you can't find a used one.

which brand Fan?
Best

Good luck but your still not moving water at idle. There is one more trick to put a plug with a 1/8" hole in it in the bypass hose.

56 Vic, B'Ville 200 MPH Club Member, So Cal.

Problem solved 16" electric fan does the trick. Thanks for all of  the input.

There was an article on here recently about using a pulley from a slant 6 which is a little smaller and fits correctly.  Dave V

SE Wis

Thank you i'll look into it Dave

I bought a pully for a 302 Mustang 67-68 era. Pully is about 5-1/2". I needed a spacer kit to move it out about 1/8" as I remember, the kit came from Summitt along with the pully. It was chrome and you could get it with 1 or 2 groves. I scotch brited it and painted it semi-gloss black. I needed a slightly shorter v-belt. It solved the same heat up problem you are having. Good luck.

56 Vic, B'Ville 200 MPH Club Member, So Cal.

Still on the motor appears to be about 7 1/2 " Thanks Dave