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Old 12-24-2020, 11:32 PM
LStathas LStathas is offline
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Why do the mains need to be line honed for studs?

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Old 12-25-2020, 09:31 AM
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Jay S Jay S is offline
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Originally Posted by LStathas View Post
Why do the mains need to be line honed for studs?
The studs have a higher clamping force than bolts and create a different distortion pattern on the caps. It will usually make the mains out-of-round.

455grandville alluded to it already, to get back with in spec, many engines need line honing even going back stock.

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Old 12-25-2020, 10:34 PM
Dragncar Dragncar is offline
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Why do the mains need to be line honed for studs?
I have a 455, built in 1990 and ran hard. About 15 years in I put a solid roller in, H beam rods(re balanced) and main studs in 4 bolt 1970 block. No line honing.
Block has not been honed or decked except by PMD.
This engine has well over 1000 1/4 mile passes and is still running.

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