440 dizzy gear and driveshaft.

1968rt said
Brian6pac, thats a small block gear.....well at least the picture is!
this is a big block gear
Mopar Performance P3412064 Mopar Performance Oil Pump Driveshaft and Distributor Gear Sets | Summit Racing

If you read the specs the P3571071 is for the RB (but the wrong picture)
The P3412064 is for the Milidon pump and is a longer shaft.
The 3571071 is the one he needs, the Melling IS-63 is a stock replacement