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KB Hypereutectic Claimer Pistons
A great upgrade from standard cast claimer vantage is life. These hypereutectic sets normally last 3 to 4 seasons. They are much like a KB Hypereutectic Piston, except without the hand machine work and features a T-5 heat treat with coated skirts. Designed for press or bushed pin applications (pins included).
Hypereutectic 390 Alloy with 16% Silicon
CNC machined pin bores produce straight and accurately sized bores
Diamond Finished Skirts
Anti-friction coating on skirts
Machined in Oil Returns
Accumulator Groove aids with compression ring seal
Cast in symmetrical valve reliefs
Tru-Arc Lock Rings
Part Type: Pistons
Model: Hypereutectic Claimer Pistons
Application: Chevrolet Small Block V8
Piston Style: 23 Degree Flat Top with 2 Valve Reliefs
Cylinder Bore: 4.185"
Compression Distance: 1.565"
Crankshaft Stroke/Rod Length: 3.480" with 5.700" Connecting Rod (383ci)
Crankshaft Stroke/Rod Length: 3.750" with 5.565" Connecting Rod (413ci)
Deck Height (O.E.): 1.565"
Deck Height (O.E.): 9.025"
Dome Volume: +5cc
Compression Ratio: w/ 58cc Heads: 11.8
Compression Ratio: w/ 64cc Heads: 11.0
Compression Ratio: w/ 76cc Heads: 9.6
Compression Ratio: w/ 58cc Heads: 12.6
Compression Ratio: w/ 64cc Heads: 11.7
Compression Ratio: w/ 76cc Heads: 10.3
Piston Material: Hypereutectic 390 Alloy
Intake Valve Relief Depth: .250"
Intake Valve Relief Diameter: 2.200"
Exhaust Valve Relief Depth: .250"
Exhaust Valve Relief Diameter: 2.200"
Accumulator Groves: Yes
Forced Pin Oilers: No
Gas Ports: No
Skirt Coating: Anti-friction Coating
Lock Removal Indents: No
Average Piston Weight: 425
Average Piston Weight: 598
Wrist Pin Style: Press-Fit or Floating
Wrist Pins Included: Yes
Wrist Pin Size: .927 x 2.160"
Average Wrist Pin Weight: 102
Pin Lock Included: Tru-Arc
Ring Groove Sizes: 5/64", 5/64", 3/16"
Piston Rings Included: No
Manufacturer: United Engine and Machine Company
Manufacturer's Part Number: 9907HC.060
Weight: 13.5 lbs.
Warranty: Sold without warranty or guarantee of any kind.
Quantity: Sold as Sets of 8
Note: Centered pin. Coated skirts. Now supplied with lockrings so the pistons can run either full floating or press fit.
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