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| cast or bronze guides? https://slantsix.org/forum/viewtopic.php?t=4782 |
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| Author: | alienduster [ Sat Jan 11, 2003 12:47 am ] |
| Post subject: | cast or bronze guides? |
Building my head right now and am undecided on which guide to use. I know the cast has tighter clearances. Any real advantage to using the bronze? building a strong street motor that won't see more than 4500. |
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| Author: | Doctor Dodge [ Sat Jan 11, 2003 7:50 am ] |
| Post subject: | |
The bronze guides last much longer then the cast iron. There are many different types, use the solid (thick wall) ones if possible. The thin wall sleeve type or the wound versions take more care to install so they don't slip / move over time. DD |
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| Author: | Jopapa [ Sat Jan 11, 2003 4:51 pm ] |
| Post subject: | |
Are the bronze better all around, or are the cast better for a higher performance engine due to the tighter tolerances? |
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| Author: | Doctor Dodge [ Sat Jan 11, 2003 9:38 pm ] |
| Post subject: | |
The race engines use bronze. (unless the rules say not to) As for the clearances and tolerances guide to valve stem, the machinist sets that when he installs the guide. DD |
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| Author: | bud L. [ Sat Jan 11, 2003 10:47 pm ] |
| Post subject: | clearances |
I do my own heads, and if you want tight clearances, you need good valve stems. They need to be round, straight and consistent size. |
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