KB Hypereutectic SB Chevy Domed Piston Set - 4.030" Bore - 3.480" Stroke - 5.700" Rod Length Go Fast Bits Be Sure to check out

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Ideal for Use with GM Power Steering Pump with Mustang II Steering Rack & Pinion

Ford Mustang 1999-2004

KB Hypereutectic SB Chevy Domed Piston Set - 4.030" Bore - 3.480" Stroke - 5.700" Rod Length Go Fast Bits Be Sure to check outModern 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