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KB Hyper Performance Piston Set, KB257.STD
$399.99
MSRP: $443.76
You Save: $43.77 (10 %)
Ships directly from manufacturer.
Piston rings not included
Part Number: 807494
Brand: UEM Pistons
Manufacturer Part No: KB257.STD
Superior Quality Parts: Heavy Duty Pros parts meet and exceed the OEM quality specifications.
Fast Shipping: We ship from warehouses across the US to ensure the quickest delivery.
Expert Technical Advice: Industry repair technicians are standing by to provide expert advice for your repair.
Huge Savings: We offer competitive online pricing for significant savings.
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Product Details & Specifications
KB Hyper Piston - Chevy 454 Rod 6.135 oc Hollow Dome -26cc 1V
Centered pin. OC = open chamber head.
Sold As: Piston Set
Engine Manufacturer: Chevrolet
Engine Family: Chevrolet BB V8 Mark IV
Engine Displacement (Liters): 7.4
Engine Displacement (cubic inches): 454
Bore Size (in): 4.25
Bore Size (mm): 108
Piston Head Type: Dome
Crown (cc): -26cc
Compression Ratio: 119-10.2
Top Land: 0.308
Pin Type: Press or Floating
Pin Diameter (mm): 25.1
Oversizes: STD, .030, .040, .060, .070, .100
Pin Configuration: Centered
Rod (mm): 155.829
OE Deck Height: 9.8
Pin Number: 0990x300K
Pin Diameter (in): 0.99
Year Range: 1970-2000
Piston Material: Cast 390 Hypereutectic Alloy
Bore Diameter IN: 4.25
Bore Diameter MM: 108
Compression Height MM: 41.7
Compression Height IN: 1.645
Ring Pack: 5/64, 5/64, 3/16
Year To: 2000
Lock: PRG110-3
Oversize: STD
Oversized: No
Stroke (mm): 101.6
Make for Engine Family: General Motors
Alloy: 390
Stroke (in): 4
Year From: 1970
Base Number: KB257
Crown Type: .250" OC HOLLOW DOME 1V
Rod (in): 6.135
Intake Valve Depth/Diameter: .266/2.310
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