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Manufacturer: Kibblewhite Precision
SKU: 20-20772
Some late-model Twin Cam heads with 7.0mm valves have a tendency to crack in the port of the valve guide boss.The Fat Stem valves have +.005in. oversize stems for engine builders who need to re-establish the correct valve stem to guide clearance but do not want to create a crack or worsen an existing crack in the head by changing the valve guides.Valve guides MUST be reamed to set correct clearance, and a valve job should be performed to ensure proper sealing.Oversize portion of the valve stem does not extend into the keeper groove area, OEM valve keepers can be used.Sold each Head diameter: 1.805in..Stem diameter: .2815in..Tulip: 1.700in..Length: 4.415in.
| Weight | 1 kg |
| SKU | 20-20772 |
| Name | Fat Stem Black Diamond Intake Valve |
| Description |
Fat Stem Black Diamond Intake ValveManufacturer: Kibblewhite Precision SKU: 20-20772 Some late-model Twin Cam heads with 7.0mm valves have a tendency to crack in the port of the valve guide boss.The Fat Stem valves have +.005in. oversize stems for engine builders who need to re-establish the correct valve stem to guide clearance but do not want to create a crack or worsen an existing crack in the head by changing the valve guides.Valve guides MUST be reamed to set correct clearance, and a valve job should be performed to ensure proper sealing.Oversize portion of the valve stem does not extend into the keeper groove area, OEM valve keepers can be used.Sold each Head diameter: 1.805in..Stem diameter: .2815in..Tulip: 1.700in..Length: 4.415in.
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