![KB Hypereutectic Pistons [Small Block Ford 302ci, 5.0L]](https://www.jegs.com/images/mini_750/600/648/648-kb115.030.jpg)
KB Hypereutectic Pistons [Small Block Ford 302ci, 5.0L]
Technical Specs:
- Alloy: Hypereutectic 390
- Bore: 4.030 in.
- Crankshaft Stroke: 3.000 in.
- Connecting Rod Length: 5.090 in.
- Deck Height: 8.206 in.
- Compression Height: 1.608 in.
- Pin Size: 0.9122 in.
- Pin Location: Centered
- Flat Top: -6.5 cc 2V Relief
- Intake Valve Relief: 0.257' Depth / 2.120 in. Diameter
- Exhaust Valve Relief: 0.247 in. Depth / 1.880 in. Diameter
- Top Landing Height: 0.275 in.
- Ring Grooves: 5/64 in. Top; 5/64 in. Middle; 3/16 in. Bottom
- Gram Weight: 570/143
- Compression Ratio: 10.0:1 w/54 cc Heads; 9.6:1 w/58 cc Heads; 9.0:1 w/64 cc Heads; 8.5:1 w/69 cc Heads
100% CNC Machined Pistons
New high silicon alloys and diamond tooling have give Keith Black designers the material and equipment for performance breakthroughs in engine design. KB pistons are 100% CNC machined and T-6 heat treated from 16%-18% silicon Hypereutectic alloy. Features include drilled oil returns and pin oil supply, .072'' spiral wound retaining ring, 100% diamond turned, compensated high strength ring lands, high top ring location, 360° pressure pin oiling, diamond honed pin hole and lightweight rigid rib skirt design.
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Features:
- 390 Hypereutectic alloy with 16% Silicon
- Fully machined crowns and valve reliefs
- Drilled oil drain backs
- Full floating wrist pins
- Triple wound spiral locks
- Reflective alloy allows 2% power increase
- Quench dome technology minimizes deterioration
- Zero deck quench designs
- Sold in Sets (except when noted as 1 piston per package)Click here for reference guide to piston top designs
