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B20 block and head choice for performance build 120-130

posted by  B20Paul. on  Fri Feb 29 20:21 CST 2008
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last visit: Mon Oct 20 10:54 CST 2014
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Nearly all the '74 motors I have seen here still use UNC threads in the blocks combined with the 8-bolt metric crank.

I've only seen one with metric main bolts, but it still had UNC everywhere else on the block.

I agree that a lot of '74 blocks had soft blocks, but that was the year they started using CWC cam cores which solved 90% of the previous cam problems & it's still the core that you get today.





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New B20 block and head choice for performance build [120-130]
posted by  Deluxe  on Fri Feb 29 04:13 CST 2008 >


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