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ring end gap-what do people think? #1720360 01/02/15 07:29 PM 01/02/15 07:29 PM
Joined: Sep 2007 Posts: 641 western australia 1 1cuda OP mopar
1cuda OP mopar 1 Joined: Sep 2007 Posts: 641 western australia	rebuilding a 273 with a standard bore 3.625 i have egge pistons 10.5 and the rings they supplied are not filebacks but they measure .010 for top ring and .008 for second. i think this is too tight. what do others think? total stock commando 273 build. thanx in advance frank.

Re: ring end gap-what do people think? [Re: 1cuda] #1720361 01/02/15 07:49 PM 01/02/15 07:49 PM
Joined: Oct 2003 Posts: 7,506 Az Crizila master
Crizila master Joined: Oct 2003 Posts: 7,506 Az	Quote: rebuilding a 273 with a standard bore 3.625 i have egge pistons 10.5 and the rings they supplied are not filebacks but they measure .010 for top ring and .008 for second. i think this is too tight. what do others think? total stock commando 273 build. thanx in advance frank. When all else fails, go with .004" per inch of bore. Too tight = broken. Too loose = uses a little bit of oil. Fastest 300

Re: ring end gap-what do people think? [Re: Crizila] #1720362 01/02/15 07:56 PM 01/02/15 07:56 PM
Joined: Nov 2010 Posts: 1,397 Carson City, Nevada Biginchmopar pro stock
Biginchmopar pro stock Joined: Nov 2010 Posts: 1,397 Carson City, Nevada	Yes that is to tight. Go with .016" Top .014" Second.

Re: ring end gap-what do people think? [Re: Biginchmopar] #1720363 01/02/15 08:35 PM 01/02/15 08:35 PM
Joined: Sep 2007 Posts: 641 western australia 1 1cuda OP mopar
1cuda OP mopar 1 Joined: Sep 2007 Posts: 641 western australia	that`s what i thought-that`s what i`ve done in the past. i`ve heard about not having the second ring too tight as well to eliminate ring flutter caused by trapped pressure between the rings...is this true? should i run both at .014 or go with .014 on the top and .012 on the second? 3.625 is a small bore. thanx for the replies. all the best frank.

Re: ring end gap-what do people think? [Re: Crizila] #1720364 01/02/15 08:36 PM 01/02/15 08:36 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: Quote: rebuilding a 273 with a standard bore 3.625 i have egge pistons 10.5 and the rings they supplied are not filebacks but they measure .010 for top ring and .008 for second. i think this is too tight. what do others think? total stock commando 273 build. thanx in advance frank. When all else fails, go with .004" per inch of bore. Too tight = broken. Too loose = uses a little bit of oil. This is the standard I use... the ring companies do a LOT more testing on end gap than I ever did.. I've never broke a ring

Re: ring end gap-what do people think? [Re: MR_P_BODY] #1720365 01/02/15 08:58 PM 01/02/15 08:58 PM
Joined: Jan 2003 Posts: 27,421 Balt. Md 3 383man Too Many Posts
383man Too Many Posts 3 Joined: Jan 2003 Posts: 27,421 Balt. Md	I agree to tight. .004 per inch of bore is right for a normal setting. I would rather be a tad loose then to tight on ring gaps. Ron

Re: ring end gap-what do people think? [Re: Biginchmopar] #1720366 01/02/15 11:01 PM 01/02/15 11:01 PM
Joined: Jul 2004 Posts: 19,317 State of confusion T Thumperdart I Live Here
Thumperdart I Live Here T Joined: Jul 2004 Posts: 19,317 State of confusion	Quote: Yes that is to tight. Go with .016" Top .014" Second. One trend is a wider second gap.........Mine are .018-.027.fwiw. 72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....

Re: ring end gap-what do people think? [Re: 1cuda] #1720367 01/02/15 11:35 PM 01/02/15 11:35 PM
Joined: Jan 2003 Posts: 16,925 NC 440Jim I Live Here
440Jim I Live Here Joined: Jan 2003 Posts: 16,925 NC	IMO, 0.014" on the top and 0.010" on the second would be fine in that application. However, you won't notice any difference with 0.016" top and 0.014" second, or even 0.014" top and 0.012" second.

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