Diamond Racing Forged Pistons Toyota Supra MKV BMW 340i Z4 B58 82mm STD -8.4cc 11.0:1
is backordered and will ship as soon as it is back in stock.
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Description
Specs
Bore Diameter 82mm (STD)
Compression Ratio 11.0:1
Rod Length 5.8346in / 148.2mm
Stroke 94.6mm Standard
Pin .866in x 2.250in x .185in
Piston Features:
3D milling on piston crowns for ready to install finish
Offset pins for quiet operation
Moly skirt coating for friction loss and skirt wear protection
Side gas ports for better ring seal
Ratios figured for OEM head gasket @ OEM deck
Top ring down dimension: .325"
Premium H-13 .185W wrist pins chamfered for roundwire locks included
Premium 1.0mm x 1.2mm x 2.8mm ring package included
Over-sized valve pockets - for larger than stock valve sizes
Valve pocket depth: 0.195" intake and .175" exhaust
2618 material for High HP/Boost applications
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