Kibblewhite™ Black Diamond Valves

Valves are sold per piece

Flathead 1930-1973 (Black Nitroneg Stems) Price Qty  
20-20740 Intake/Exhaust 1.625"/41.28mm head diameter, 0.3395" stem diameter, R 0.540 tulip, 5.585" OL, 45" Standard $41.15
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20-20742 Intake/Exhaust 1.930"/49.02mm head diameter, 0.3715" stem diameter, 7° tulip, 6.280" OL, UL 74"-80" $41.15
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20-20743 Intake/Exhaust 2.050"/52.07mm head diameter, 0.3715" stem diameter, 7° tulip, 6.280" OL, UL 74"-80" $41.15
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20-20744 Intake/Exhaust 1.930"/49.02 head diameter, 03715" stem diameter, 7° tulip, 5.940" OL, VL 74"-80" $41.15
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20-20745 Intake/Exhaust 2.050"/52.07mm head diameter, 0.3715" stem diameter, 7° tulip, 5.940" OL, VL 74"-80" $41.15
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Knucklehead 1936-1947 (Black Nitroneg Stems) Price Qty  
20-4101 Intake 1.750"/44.45mm head diameter, 0.3765" stem diameter, 23° tulip, 3.590" OL, STD. (OEM 18071-36) $32.85
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20-20414 Intake 1.940"/49.28mm head diameter, 0.3765" stem diameter, 23° tulip, 3.590" OL, Oversize $97.30
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20-4102 Exhaust 1.750"/44.45mm head diameter, 0.3760" stem diameter, 27° tulip, 3.670" OL, STD. (OEM 18081-36) $32.85
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Panhead 1948-1965 (Black Nitroneg Stems) Price Qty  
20-4257 Intake 1.750"/44.45mm head diameter, 0.3765" stem diameter, 23° tulip, 3.800" OL, STD. (OEM 18071-48) $32.85
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20-4195 Exhaust 1.750"/44.45mm head diameter, 0.3760" stem diameter, 29° tulip, 3.820" OL, STD. (OEM 18082-57) $27.80
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Shovelhead 74" 1966-1977 (Black Nitroneg Stems) Price Qty  
20-4194 Intake 1.950"/49.53mm head diameter, 0.3765" stem diameter, 23° tulip, 3.885" OL, STD. (OEM 18078-80) $27.80
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20-4256 Intake 2.000"/50.80mm head diameter, 0.3765" stem diameter, 23° tulip, 3.885" OL, Oversize $32.85
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20-4195 Exhaust 1.750"/44.45mm head diameter, 0.3760" stem diameter, 29° tulip, 3.820" OL, STD. (OEM 18082-57) $27.80
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20-4195S Exhaust 1.780"/45.21mm head diameter, 0.3760" stem diameter, 29° tulip, 3.820" OL, Oversize $41.15
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20-4195-1 Exhaust, 1.812"/46.02mm head diameter, 0.3760" stem diameter, 29° tulip, 3.820" OL, Oversize $41.15
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Shovelhead 80" 1978-1983 (Black Nitroneg Stems) Price Qty  
20-4194 Intake 1.950"/49.53mm head diameter, 0.3765" stem diameter, 23° tulip, 3.885" OL, STD. (OEM 18078-80) $27.80
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20-4256 Intake 2.000"/50.80mm head diameter, 0.3765" stem diameter, 23° tulip, 3.885" OL, Oversize $32.85
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20-4195 Exhaust 1.750"/44.45mm head diameter, 0.3760" stem diameter, 29° tulip, 3.810" OL, STD. (OEM18082-57) $27.80
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20-4195S Exhaust 1.780"/45.21mm head diameter, 0.3760" stem diameter, 29° tulip, 3.820" OL, Oversize $41.15
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20-4195-1 Exhaust 1.812"/46.02mm head diameter, 0.3760" stem diameter, 29° tulip, 3.820" OL, Oversize $41.15
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Shovelhead 80" 1978-1983 (Large Stem * Black Nitroneg Stems) Price Qty  
20-4294 Intake 1.950"/49.53mm head diameter, 0.3780" stem diameter, 23° tulip, 3.885" OL, STD. (OEM 18075-81) $32.85
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20-4295 Exhaust 1.750"/44.45mm head diameter, 0.3760" stem diameter, 29° tulip, 3.820" OL, STD. (OEM 18086-81) $32.85
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Evolution 1984-1999 Price Qty  
20-4171 Intake 18.40"/46.74mm head diameter 0.3100" stem diameter, 23° tulip, 4.445" OL, STD. (OEM 18074-83B) $27.80
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20-4170 Exhaust 1.615"/41.02mm head diameter, 0.3096" stem diameter, 29° tulip, 4.520" OL, STD. (OEM 18082-83) $27.80
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Evolution 1984-1999 (Designed for HD Racing Applications) Price Qty  
20-4169 Intake 1.940"/49.28mm head diameter, 0.3100" stem diameter, 23° tulip 4.400" OL, Replacement (Branch Heads) $32.85
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20-20108 Intake 2.000"/50.80mm head diameter, 0.3100" sem diameter, 23° tulip, 4.445" OL, Oversize (STD Heads) $41.15
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20-4171R Intake 1.900"/48.26mm head diameter, 0.3100" stem diameter, 28° tulip, 4.420" OL, Oversize (Racing Profile) $27.80
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20-4270K Exhaust, 1.630"/41.40mm head diameter, 0.3096" stem diameter, 40° tulip, 4.520" OL, Oversize (Inconel) $74.50
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20-B101 Exhaust 1.615"/41.02mm head diameter, 0.3096" stem diameter, RO1.625 tulip, 4.460" OL, Replacement (Branch Heads) $41.15
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20-4170R Exhaust 1.630"/41.40mm head diameter, 0.3096" stem diameter, 40° tulip, 4.520" OL, Oversize (Racing Profile) $27.80
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20-4170M Exhaust 1.650"/41.91mm head diameter, 0.3095" stem diameter, 24° tulip, 4.480" OL, Oversize (STD Heads) $32.85
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20-4170S Exhaust 1.750"/44.45mm head diameter, 0.3095" stem diameter, 24° tulip, 4.480" OL, Oversize (STD Heads) $41.15
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Sportster 1957-1969 (Black Nitroneg Stems) Price Qty  
20-4258 Intake 1.825"/46.36mm head diameter, 0.3095" stem diameter, 23° tulip, 3.565" OL, STD. (OEM 18071-58) $41.15
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20-4197 Exhaust 1.570"/39.88mm head diameter, 0.3384" stem diameter, 29° tulip, 3.510" OL, STD. (OEM 18080-58R) $27.80
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20-4197-1 Exhaust 1.630"/41.40mm head diameter, 0.3384" stem diameter, 29° tulip, 3.510" OL, Oversize $32.85
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Sportster 1970-1983 (Black Nitroneg Stems) Price Qty  
20-4196 Intake 1.935"/49.15mm head diameter, 0.3090" stem diameter, 23° tulip, 3.620" OL, STD. (OEM 18070-70) $27.80
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20-4167 Intake 1.950"/49.53mm head diameter, 0.3090" stem diameter, 23° tulip, 3.690" OL, STD. (OEM 18069-65R) $32.85
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20-4196-1 Intake 2.000"/50.80mm head diameter, 0.3090" stem diameter, 23° tulip, 3.620" OL, Oversize $32.85
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20-4197 Exhaust 1.570"/39.88mm head diameter, 0.3384" stem diameter, 29° tulip, 3.510" OL, STD. (OEM 18080-58R) $27.80
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20-4197-1 Exhaust 1.630"/41.40mm head diameter, 0.3384" stem diameter, 29° tulip, 3.510" OL, Oversize $32.85
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20-4168 Exhaust 1.750"/44.45mm head diameter, 0.3384" stem diameter, 29° tulip, 3.620" OL, STD. (OEM 18080-70R) $32.85
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Return Policy: The Good Old Motorcycle Parts Company accepts returns and/or exchanges on products within (30) days of receipt. We DO NOT accept any returns or exchanges on Electrical Components (remember if it smells burnt, it is burnt). All warranties on electrical components must be taken up with the individual manufacturer. The returned product must be in the original packaging, unopened and unaltered. The buyer is responsible for all shipping charges to exchange or return an item. Shipping charges will only be refunded on defective items, misrepresented items or items that may have been sent to you in error. If you are unsure about an item, a size or a fit, please contact us prior to purchasing the item.