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Keith Black/KB Pistons KB237-030 - Keith Black Hypereutectic Pistons

  • Pistons, Hypereutectic, Flat, 4.350 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring, Mopar, Big Block, Set of 8
  • Application Specific
  • Estimated Ship Date: Tomorrow
 
BrandKeith Black/KB Pistons
Manufacturer's Part NumberKB237-030
Part TypePistons
Product LineKeith Black Hypereutectic Pistons
Summit Racing Part NumberUEM-KB237-030
 
Bore (in)4.350 in.
Bore (mm)110.490mm
Piston StyleFlat top, with two valve reliefs
Piston MaterialHypereutectic aluminum
Compression Distance (in)2.067 in.
Piston Head Volume (cc)+5.00cc
Wrist Pin StylePress-fit or floating
Pin Diameter (in)1.094 in.
Piston Ring Thickness5/64 in. x 5/64 in. x 3/16 in.
QuantitySold as a set of 8.
NotesPiston weight 770g, pin weight 190g.
 

Keith Black hypereutectic pistons are serious pistons that don't cost an arm and a leg.

Keith Black hypereutectic pistons are made from 390 alloy and heat-treated to T6 standards, which makes them 30 percent stronger than ordinary untreated hypereutectics. Their 100 percent CNC-machined crowns, high upper compression-ring location, gas-accumulator groove, drilled oil returns, and spiral-lock retainer grooves make these pistons outstanding for performance applications. On top of that, Keith Black's hypereutectic pistons have a lightweight, rigid-rib skirt design that stabilizes the piston in the bore. All of this adds up to pistons that fit tighter than forged types, provide improved oil control, reduce blowby, increase ring life, eliminate cold start-up knocking, and won't cost you an arm and a leg!

Warranty

United Engine and Machine pistons are sold without warranty or guarantee of any kind. United Engine and Machine Company shall not, under any circumstances, be liable for any special, incidental, or consequential damages of any kind from the purchase, installation, or use of these pistons.