Ford SB 289 302 351 Windsor 1.6 7/16" Stainless Steel Roller Rocker Arm Set If your standard Bowtie block

If your standard Bowtie block could handle 1500+ HP it would be Speedmaster's H1 engine block

Available in plain or finned styles

Use existing bolt holes to mount these brackets with the included hardware

They're designed with performance in mind

Ford SB 289 302 351 Windsor 1.6 7/16" Stainless Steel Roller Rocker Arm Set If your standard Bowtie blockSpeedmaster Stainless steel rollers are manufactured from heat treated stainless steel and alloy steel tip rollers. Speedmaster roller rockers are available in various ratios, so you are good to go. They feature greater strength and durability, capable of withstanding valve spring load up to 600lbs.