Harland Sharp Original Rocker Arm - 7/16" Stud Mount - 1.60 Ratio - Full Roller - Aluminum - Orange - Small Block Ford - (Set of 16) 4704021-20-XL Up to 150% more spark

Up to 150% more spark energy over the OE points ignition

2003-2004 Chevrolet SSRFits various vehicles with TH700-R4

Bert Late Model Bellhousings

69 in Long

Harland Sharp Original Rocker Arm - 7/16" Stud Mount - 1.60 Ratio - Full Roller - Aluminum - Orange - Small Block Ford - (Set of 16) 4704021-20-XL Up to 150% more sparkProduct Description: Rocker Arm Original 7 16 in Stud Mount 1. 60 Ratio Full Roller Aluminum Orange Anodized Small Block Ford Set of 16 Since the 1950s, Harland Sharp is the leader in roller rocker arm technology. Sharp manufactures roller rockers and rocker components for a variety of applications. Their rockers are made from lightweight aluminum and anodized for increased durability.