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KB Hyper Performance Piston Kit, KB304KTM.030
$502.99
MSRP: $558.20
You Save: $55.21 (10 %)
Ships directly from manufacturer.
Part Number: 807677
Brand: UEM Pistons
Manufacturer Part No: KB304KTM.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.
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Product Details & Specifications
1 Set KB304.030/1 Set 4120AM8.030
Centered pin. Designed for use with 14 degree heads. 1967 and later. Piston is.025 below factory deck. Check small end of rod to piston before assembly /.045" clearance per side minimum.
Sold As: Kit with Rings
Engine Manufacturer: Pontiac
Engine Family: Pontiac V8
Engine Displacement (Liters): 7
Engine Displacement (cubic inches): 428
Bore Size (in): 4.12
Bore Size (mm): 104.6
Crown (cc): +6cc
Compression Ratio: 71-11.3, 87-9.7, 96-9.0, 111-8.0
Top Land: 0.275
Pin Type: Press or Floating
Ring Pack: 5/64, 5/64, 3/16
Compression Height IN: 1.585
Piston Material: Cast 390 Hypereutectic Alloy
Lock: PRH107-3
Exhaust Valve Depth/Diameter: .250/2.210
Intake Valve Depth/Diameter: .250/2.210
Year Range: 1966-1969
Oversizes: .030, .040, .060
Stroke (in): 4
Bore Diameter IN: 4.12
Bore Diameter MM: 104.6
Compression Height MM: 40.3
Alloy: 390
Pin Diameter (in): 0.98
Oversized: Yes
Pin Configuration: Centered
Crown Type: FLAT TOP 2V
Stroke (mm): 101.6
Base Number: KB304
Year From: 1966
Oversize: .030"
Rod (mm): 168.402
Pin Number: 0980x300K
Year To: 1969
Rod (in): 6.63
OE Deck Height: 10.25
Pin Diameter (mm): 24.9
Make for Engine Family: General Motors
Grade Type: Performance
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