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MANLEY exhaust valves for Chevrolet Big Block (Extreme Duty, underhead 15°), 47.75 × 140.26 mm, stem 8.67 mm, 8 pcs
Manley exhaust valves for Chevrolet Big Block (Extreme Duty, underhead 15°), 47.75 × 140.26 mm, stem 8.67 mm, 8 pcs.
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11737-8
807298051833
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Manley exhaust valves for Chevrolet Big Block (Extreme Duty, underhead 15°), 47.75 × 140.26 mm, stem 8.67 mm, 8 pcs.
Manley racing valve. Head diameter, length and stem diameter must match the cylinder head, guides and spring retainers.
- Head diameter: 47.75 mm
- Length: 140.26 mm
- Stem diameter: 8.67 mm
- Installed height +2.54 mm
- Underhead angle / radius: 15°, R 12.7 mm
- Top of head: 9° dish
- Tip length: 6.35 mm
- Margin width: 1.9 mm
- Seat width: 2.16 mm
- Weight: 133 g
- Version: Extreme Duty, underhead 15°
- Pack: 8 pcs
- Manufacturer description: BBC Exhaust Valve Kit 1.880 x 5522 x .3415
- Manufacturer part number: 11737-8
Fits: Chevrolet Big Block
Manley Performance of New Jersey (USA) makes valves, connecting rods, crankshafts and pistons for racing engines.
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