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Ring gaps for 76 360 #1250107 06/12/12 10:24 PM 06/12/12 10:24 PM
Joined: Mar 2008 Posts: 293 salem, oregon. usa E elmor OP enthusiast
elmor OP enthusiast E Joined: Mar 2008 Posts: 293 salem, oregon. usa	Rebuilding the 360 in my pickup. Low buck with new cast pistons and cast iron rings. Standard bore. What is the recommended ring end gaps?

Re: Ring gaps for 76 360 [Re: elmor] #1250108 06/13/12 11:43 AM 06/13/12 11:43 AM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	.004" per inch of bore on the top ring and .003" per inch of bore on the 2nd ring live every 24 hour block of time like it's your last day on earth

Re: Ring gaps for 76 360 [Re: RapidRobert] #1250109 06/13/12 12:54 PM 06/13/12 12:54 PM
Joined: Oct 2003 Posts: 21,345 Marysville, O-H-I-O 70Cuda383 Too Many Posts
70Cuda383 Too Many Posts Joined: Oct 2003 Posts: 21,345 Marysville, O-H-I-O	Who's rings? Call them and ask. Newer theory is to make the 2nd ring the same or bigger, to release any trapped gasses that get past the top ring, and to prevent lifting the top ring from too much pressure between the 2 rings. Error on the side of caution. Too big is no real problem, too small is a huge problem. Photobucket sucks

Re: Ring gaps for 76 360 [Re: 70Cuda383] #1250110 06/14/12 04:33 AM 06/14/12 04:33 AM
Joined: Mar 2008 Posts: 293 salem, oregon. usa E elmor OP enthusiast
elmor OP enthusiast E Joined: Mar 2008 Posts: 293 salem, oregon. usa	Thanks guys. I would rather be safe than sorry. I only want to do this once.

Re: Ring gaps for 76 360 [Re: RapidRobert] #1250111 06/14/12 04:40 AM 06/14/12 04:40 AM
Joined: Feb 2010 Posts: 18,493 Granite Bay CA Kern Dog Striving for excellence
Kern Dog Striving for excellence Joined: Feb 2010 Posts: 18,493 Granite Bay CA	Quote: .004" per inch of bore on the top ring and .003" per inch of bore on the 2nd ring I have heard that as well as the theory that a wider second ring gap promotes better ring seal due to less flutter when the second ring encounters pressure from underneath/the crankcase. I gapped my 440 to .018 top and .22 on the second rings, as per the instructions that came with my rings. .004 top ring .0055 second ring.

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