Ring End Gaps? Bored Over .020"

[2011Ram2500SergAnt]

2011 Ram 2500 ST 4x4 8ft Bed 5.7 Hemi
Had the Typical Lifter/Cam Failure.

Block Bored Over .020.
SILV-O-LITE 3257HCA Hypereutectic Pistons .020"
Hastings 2M5141020 / .020" Rings
For Street/Towing. No Turbo/Nos.

What are Good Ring End Gaps for Compression Rings 1/2 & 3 Oil Rings?
I know too Tight is Not good & Too lose is Not good. Top Ring Gaps are Smaller from 2nd Intermediate Rings?

Factory Standard Specs...
1st/Upper .015"-.021"
2nd/Intermediate .009-.020"
3rd/Oil Rings .005"-.025"

Hastings Specs...
1st/Upper .020"-.030"
2nd/Intermediate .018"-.028"
3rd/Oil Rings .015"-.055"

Hastings Rings out of Box as they Are...
1st/Upper .016-.018"
2nd/Intermediate .014"
3rd/Oil Rings .020"

 

[Crusty old shellback]

Since you have Hastings rings, I'd shoot for center of their specs.
Can't use factory because you don't know if the ring material is the same.
There is a reason they provide specs with their rings

 

[2011Ram2500SergAnt]

I understand. There was no ring gap specs with the rings in box. Had to reach out to them. That's the #s they gave. I question responses sometimes cuz U don't know JoSchmo working there knows what they're talking about. Was looking to get insight from ppl that know their motor builds & have possibly gone through my exact situation. Thnx for the response.

Only question I have is 1st & 2nd Ring Gaps vary from each other & if so which 1 is Larger/Smalle? I've read Nowadays, They recommend 2nd Ring Larger gap than 1st...? To divert Ring flutter to Top Ring Etc.?

 

[Crusty old shellback]

Been a while since I've rebuilt an engine. But every ring pack I've bought had the specs on the sheet in the box.

From what I remember, top ring was always a bigger gap. Remember all of the heat from the combustion chamber will affect the expansion of the top ring more than the second ring.

 

[2011Ram2500SergAnt]

2011 Ram 2500 ST 4x4 8ft Bed 5.7 Hemi
Had the Typical Lifter/Cam Failure.

Block Bored Over .020.
SILV-O-LITE 3257HCA Hypereutectic Pistons .020"
Hastings 2M5141020 / .020" Rings
For Street/Towing. No Turbo/Nos.

What are Good Ring End Gaps for Compression Rings 1/2 & 3 Oil Rings?
I know too Tight is Not good & Too lose is Not good. Top Ring Gaps are Smaller from 2nd Intermediate Rings?

Factory Standard Specs...
1st/Upper .015"-.021"
2nd/Intermediate .009-.020"
3rd/Oil Rings .005"-.025"

Hastings Specs...
1st/Upper .020"-.030"
2nd/Intermediate .018"-.028"
3rd/Oil Rings .015"-.055"

Hastings Rings out of Box as they Are...
1st/Upper .016-.018"
2nd/Intermediate .014"
3rd/Oil Rings .020"