KB Hypereutectic SB Chevy Dished Piston Set - 4.030" Bore - 3.750" Stroke - 5.700" Rod Length R07C02XL GMC: Yukon 21 - 22

GMC: Yukon 21 - 22 5

Air Filter Housing Adapter

Capable of withstanding temperatures in excess of 2500F Fits up to 2 in

Aluminum / Plastic

Marine grade clamps allow optimal performance with a large operating range

KB Hypereutectic SB Chevy Dished Piston Set - 4.030" Bore - 3.750" Stroke - 5.700" Rod Length R07C02XL GMC: Yukon 21 - 22Modern 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