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KB Hyper Performance Piston Set, KB370.040
$415.99
MSRP: $462.00
You Save: $46.01 (10 %)
Ships directly from manufacturer.
Piston rings not included
Part Number: 807970
Brand: UEM Pistons
Manufacturer Part No: KB370.040
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 - Pont 389 Rod 6.630 Flat Top +3.5cc 2V
Centered pin. Designed for 20 degree heads, 1966 and earlier. This piston will not work with 14 degree heads. Check small end of rod to piston before assembly /.045" clearance per side minimum.
Sold As: Piston Set
Engine Manufacturer: Pontiac
Engine Family: Pontiac V8
Engine Displacement (Liters): 6.4
Engine Displacement (cubic inches): 389
Bore Size (in): 4.0626
Bore Size (mm): 103.2
Piston Head Type: Flat
Crown (cc): +3.5cc
Compression Ratio: 71-10.7, 87-9.2, 96-8.5, 111-7.6
Top Land: 0.2
Pin Type: Press or Floating
Pin Diameter (in): 0.98
Piston Material: Cast 390 Hypereutectic Alloy
Alloy: 390
Crown Type: FLAT TOP 1V
Stroke (in): 3.75
Intake Valve Depth/Diameter: .237/2.100
Exhaust Valve Depth/Diameter: .237/2.100
OE Deck Height: 10.25
Oversize: .040"
Bore Diameter IN: 4.0626
Bore Diameter MM: 103.2
Compression Height MM: 43.7
Compression Height IN: 1.72
Pin Number: 0980x300K
Stroke (mm): 95.3
Make for Engine Family: General Motors
Pin Diameter (mm): 24.9
Rod (mm): 168.402
Year To: 1966
Year Range: 1959-1966
Ring Pack: 5/64, 5/64, 3/16
Oversizes: .030, .040, .060
Lock: PRH107-3
Year From: 1959
Oversized: Yes
Rod (in): 6.63
Pin Configuration: Centered
Base Number: KB370
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