KB Hypereutectic SB Chevy Dished Piston Set - 4.030" Bore - 3.750" Stroke - 5.700" Rod Length R07C02XL 5 square inches more brake

5 square inches more brake cooling area than any other wheel design

1968-1972 A-Body can use the factory front K-Member from the 1973-1976 with V8 engine for the Gen III Hemi Swap with these engine mounting brackets

GMC: Yukon 21 - 22 5

All camshafts include flat tappet lifters

All components are anodized aluminum

KB Hypereutectic SB Chevy Dished Piston Set - 4.030" Bore - 3.750" Stroke - 5.700" Rod Length R07C02XL 5 square inches more brakeModern 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