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KB Hyper Performance Piston Set, KB251.STD
$385.99
MSRP: $428.88
You Save: $42.89 (10 %)
Ships directly from manufacturer.
Piston rings not included
Part Number: 807454
Brand: UEM Pistons
Manufacturer Part No: KB251.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 - Chry 450 Rod 6.358 Step Head -4.4cc 2V
Centered pin. Suggest checking quench dome with clay for clearance. Closed chamber heads require the quench dome to be machined down. Made from Chrysler 400 block. Use only stock rods. Comp. ratio will change with quench dome machining.
Sold As: Piston Set
Engine Manufacturer: Chrysler
Engine Family: Mopar Big Block B
Engine Displacement (Liters): 7.4
Engine Displacement (cubic inches): 450
Bore Size (in): 4.342
Bore Size (mm): 110.3
Piston Head Type: Dome
Crown (cc): -4.4cc
Compression Ratio: 72-12.9, 80-11.8, 84-11.3, 88-10.9
Top Land: 0.221
Pin Type: Press or Floating
Oversized: No
Make for Engine Family: Mopar
Base Number: KB251
Bore Diameter MM: 110.3
Compression Height MM: 43.7
Oversize: STD
Compression Height IN: 1.722
Ring Pack: 5/64, 5/64, 3/16
Exhaust Valve Depth/Diameter: .264/2.360
Lock: PRF116-3
OE Deck Height: 9.98
Bore Diameter IN: 4.342
Stroke (in): 3.75
Oversizes: STD, .020, .030, .040, .060
Intake Valve Depth/Diameter: .264/2.360
Pin Diameter (in): 1.094
Pin Number: 1.094x300K
Rod (mm): 161.4932
Rod (in): 6.358
Crown Type: .260" STEP HEAD 2V
Stroke (mm): 95.3
Alloy: 390
Pin Configuration: Centered
Pin Diameter (mm): 27.8
Piston Material: Cast 390 Hypereutectic Alloy
Year Range: -
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