KB Hypereutectic Dome Pistons - SB Ford 302 - 5.090" Rod Length, .030" Over Bore Size AA0700AF2T590401 6 AN Female to 5/16

6 AN Female to 5/16 in Tubing

Transmission Seal Plate

Blades are honed to a razor-like finish and have a tapered shape making the blade wider near the top where strength is needed and thinner at the bottom

Uses factory bolt-holes and hardware

SPECS: Brand: Holley EFI Product Type: Fuel Pressure Regulator Rebuild Kit

KB Hypereutectic Dome Pistons - SB Ford 302 - 5.090" Rod Length, .030" Over Bore Size AA0700AF2T590401 6 AN Female to 5/16Modern 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