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Username Post: bbc ring gap        (Topic#348945)
Am4wag 
Contributor
Posts: 103

Reg: 11-19-15
12-31-17 06:24 PM - Post#2719581    

Just want a final word before I sink the pistons.I file fit the rings as follows-Top rings at .020",2 went to .022".2nd.rings at .018",1 went to .020".These are the rings I have:

http://www.libertyperformance.com/pdf/FILE_FOR_RIN...
Ofcourse,the gap specs. for these rings go against all other gap recomendations I've been reading,where they state same for the top ring (.0045" X bore),but state .0055" (wider) for the 2nd.ring.


The bearer of gossip is a small untrustworthy person who takes delight in someone else's problems. Avoid them.
Let's all make the day count. - Charlie Daniels


 




Shepherd 
Frequent Contributor
Posts: 1332

Loc: Lake George, NY
Reg: 11-11-15
12-31-17 06:32 PM - Post#2719584    
    In response to Am4wag

Naturally aspirated, no nitrous? If so your clearances sound ok, of course ring spacing is important.



Edited by Shepherd on 12-31-17 06:37 PM. Reason for edit: No reason given.

 
Rick_L 
Honored Member
Posts: 27379
Rick_L
Loc: Katy, Tx, USA
Reg: 07-06-00
12-31-17 07:34 PM - Post#2719597    
    In response to Shepherd

The clearances in your link are a bit big for a stock piston or an aftermarket forged piston. But not much. For those .004"/inch of bore is the general rule of thumb.

But, and this is a huge but, if you have hypereutectic cast pistons you may need more gap, and you should follow the manufacturer's recommendations.

So all this depends on your pistons, not your rings.




 
Am4wag 
Contributor
Posts: 103

Reg: 11-19-15
01-01-18 10:13 AM - Post#2719658    
    In response to Rick_L

Sorry I failed specifics....30 over 454 Race Tech forged pistons 10.2 comp.



The bearer of gossip is a small untrustworthy person who takes delight in someone else's problems. Avoid them.
Let's all make the day count. - Charlie Daniels


 




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