5.7 ring gap w/ nitrous - Moparts Forums

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5.7 ring gap w/ nitrous #2672809 07/01/19 10:52 PM 07/01/19 10:52 PM
Joined: Dec 2004 Posts: 415 New Braunfels, TX 4 416challenger OP mopar
416challenger OP mopar 4 Joined: Dec 2004 Posts: 415 New Braunfels, TX	I have a low mileage 2018 5.7 hemi that I picked up recently. I have it apart to check the bearings and do a cam swap. While I have it apart I want to open up the ring gaps encase I spray the motor. How much are you guys opening up the ring gaps on stock bottom ends for nitrous?

Re: 5.7 ring gap w/ nitrous [Re: 416challenger] #2672845 07/02/19 05:18 AM 07/02/19 05:18 AM
Joined: Mar 2018 Posts: 52 Texas 0 03heavy member
03heavy member 0 Joined: Mar 2018 Posts: 52 Texas	I would probably just use the mmx drop in piston Instructions as a guideline there is a video on you tube Bore size x 7 I believe but you should check before relying on my memory Could you post a close picture of the top rind land of A picture I would like to compare it to a car srt

Re: 5.7 ring gap w/ nitrous [Re: 03heavy] #2672875 07/02/19 08:07 AM 07/02/19 08:07 AM
Joined: Dec 2004 Posts: 415 New Braunfels, TX 4 416challenger OP mopar
416challenger OP mopar 4 Joined: Dec 2004 Posts: 415 New Braunfels, TX	I'm not going to change pistons at this time. When I do I will replace the rotating assembly.

Re: 5.7 ring gap w/ nitrous [Re: 416challenger] #2674738 07/06/19 10:23 AM 07/06/19 10:23 AM
Joined: Jul 2019 Posts: 194 Springtown Pa R Ray408G3Hemi member
Ray408G3Hemi member R Joined: Jul 2019 Posts: 194 Springtown Pa	Originally Posted by 416challenger I have a low mileage 2018 5.7 hemi that I picked up recently. I have it apart to check the bearings and do a cam swap. While I have it apart I want to open up the ring gaps encase I spray the motor. How much are you guys opening up the ring gaps on stock bottom ends for nitrous? .018-.02 is where I would gap it. 1963 Thunderbolt 496FE 10.80 (still a work in progress) 1968 Mustang slow a$$ 428 FE 1971 Boss 351 Mustang 11.20@115mph 1993 Lightning 10.61 @ 129mph 408Ci A3 headed NA 1996 Viper GTS 2001 Lightning 8.99 @ 155MPH 5.4 Mod Motor 2009 Ram 9.65@144MPH 463CI G3 NA 2010 Challenger 9.91 @ 139MPH 408CI G3ci NA 2019 F150 (local dealer's Lightning package) ..11.90s

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