Description
ARP Ford Head Stud Kit 6.0L Diesel 91507 Silver Bullet throttle body spacers WEI7155 Silver Bullet throttle body spacers are constructed out of durable 6061 T6 billet aluminum and use a unique serrated helix entry to create turbulence at the manifold while eliminating the annoying whistle found in other helix only throttle spacers 32 in Length Ford PowerStroke ARP’s product line contains thousands of part numbers