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KB Hyper Performance Piston Set, KB251.040
$385.99
MSRP: $428.88
You Save: $42.89 (10 %)
Ships directly from manufacturer.
Piston rings not included
Part Number: 807457
Brand: UEM Pistons
Manufacturer Part No: KB251.040
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
Ring Pack: 5/64, 5/64, 3/16
Rod (in): 6.358
Year Range: -
Pin Configuration: Centered
Alloy: 390
OE Deck Height: 9.98
Compression Height IN: 1.722
Bore Diameter IN: 4.342
Bore Diameter MM: 110.3
Intake Valve Depth/Diameter: .264/2.360
Base Number: KB251
Compression Height MM: 43.7
Exhaust Valve Depth/Diameter: .264/2.360
Oversizes: STD, .020, .030, .040, .060
Stroke (in): 3.75
Pin Diameter (mm): 27.8
Pin Diameter (in): 1.094
Oversize: .040"
Lock: PRF116-3
Rod (mm): 161.4932
Piston Material: Cast 390 Hypereutectic Alloy
Pin Number: 1.094x300K
Crown Type: .260" STEP HEAD 2V
Stroke (mm): 95.3
Make for Engine Family: Mopar
Oversized: Yes
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