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KB Hyper Performance Piston Kit, KB129KTM.030
$500.99
MSRP: $556.58
You Save: $55.59 (10 %)
Ships directly from manufacturer.
Part Number: 806481
Brand: UEM Pistons
Manufacturer Part No: KB129KTM.030
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
1 Set KB129.030/1 Set 4125BM8.030
Centered pin. Spacer ring included.
Sold As: Kit with Rings
Engine Manufacturer: Chevrolet
Engine Family: Chevrolet SB V8 Gen I
Engine Displacement (Liters): 6.6
Engine Displacement (cubic inches): 400
Bore Size (in): 4.125
Bore Size (mm): 104.8
Piston Head Type: Dome
Crown (cc): -3.3cc
Compression Ratio: 58-14.1, 62-13.3, 64-13.0, 76-11.2
Top Land: 0.25
Pin Type: Press or Floating
Rod (mm): 152.4
Stroke (mm): 95.3
Make for Engine Family: General Motors
Base Number: KB129
Year To: 2018
Oversized: Yes
Compression Height MM: 28.7
Stroke (in): 3.75
Oversize: .030"
Compression Height IN: 1.13
Bore Diameter MM: 104.8
Bore Diameter IN: 4.125
Ring Pack: 1/16, 1/16, 3/16
Exhaust Valve Depth/Diameter: .280/2.168
Pin Number: 0927x300K
Grade Type: Performance
Pin Diameter (in): 0.927
Oversizes: STD, .020, .030, .040, .060
Year Range: 1970-2018
Crown Type: SOLID DOME 2V
Lock: PRJ100-3
OE Deck Height: 9.025
Pin Configuration: Centered
Pin Diameter (mm): 23.5
Intake Valve Depth/Diameter: .280/2.168
Rod (in): 6
Year From: 1970
Alloy: 390
Piston Material: Cast 390 Hypereutectic Alloy
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