1-1/8" Bore; 9/16" & 1/2" Ports on left side
 
Cast iron OE style with raw finsh
Cast Aluminum Ball Milled with chrom finish
Cast Aluminum Smooth Top with chrom finish
 
Call for availablility. 
 
OE:                    B-1003
Ball Milled:     B-1004
Smooth Top: B-1004ST