KB Hypereutectic Flat Top Pistons - SB Ford 289 - 5.155" Rod Length, .030" Over Bore Size YA0865G and Accents

and Accents

Bends and restrictions should be kept to a minimum after the muffler to maximize torque performance

Shock stud kits include two studs with large support cones and four nylon locking half nuts to mount shock to most rear torsion arms

High performance 4 pin module

Steel spring cup has a 7" wide curved base that welds to the top of a 3" diameter rear end axle tube creating a flat mounting surface for a 5" O

KB Hypereutectic Flat Top Pistons - SB Ford 289 - 5.155" Rod Length, .030" Over Bore Size YA0865G and AccentsModern piston design locates the top ring higher for improved performance. a high top ring operates at higher temperatures and requires a larger top ring end gap. To find the proper ring end gap, multiply your bore size by the ring end gap factor listed on the chart (i. e. , Street Normally Aspirated 4. 000" bore x . 0065" gap factor = . 026" total top ring end gap). Your hypereutectic performance piston will expand less than typical cast or forged