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Cylinder head exhaust valves [message #282903]

Thu, 23 July 2015 01:02

roy1

Messages: 2126
Registered: July 2004
Location: Minden nevada

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Senior Member

455 olds heads used 45 degree exhaust seats on most engines till 1972 . Then 1973 up they are 30 degree seats. I always thought 45degree were a better seat. Any thoughts on this ? Does it matter? Pros or cons? The intake seats remained at 45 degrees.

Roy Keen Minden,NV 76 X Glenbrook

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[Message index]

		Cylinder head exhaust valves By: roy1 on Thu, 23 July 2015 01:02
		Re: Cylinder head exhaust valves By: Chris Tyler on Thu, 23 July 2015 08:01
		Re: Cylinder head exhaust valves By: bwevers on Thu, 23 July 2015 11:27
		Re: Cylinder head exhaust valves By: bwevers on Thu, 23 July 2015 11:35
		Re: Cylinder head exhaust valves By: roy1 on Thu, 23 July 2015 23:33
		Re: Cylinder head exhaust valves By: bwevers on Fri, 24 July 2015 12:58

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