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K24madness K24madness is offline
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Join Date: Mar 2009
Posts: 223
Originally Posted by mikedsilva View Post
This confused me.. I always thought it was the CYLINDERS that were machined to accept the ring..
The cylinders are machines to accept a sealing ring if there is not a grove present. This process duplicates the factory's newer method of sealing the heads/cylinders.

When building a turbo or very high performance motor you can also weld the lower two fins on the head and machine a matching grove into it. This helps prevent the heads from dancing around under extreme conditions.

Stevie's comment of machining a small cut in the head sounds like a way of helping the sealing ring in the cylinder achieve a better seal. Not necessarily a full grove like the flame ring on a turbo motor.
Old 09-03-2016, 02:21 PM
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