Olds 455 ring gap question
#1
Olds 455 ring gap question
Ok, crank is torqued down with new ARP bolts to ARP spec. I have a set of KB277-60 pistons and cast Hasting rings 661 I believe. Top ring gaps are at .020 to .021 within Hasting gap spec but KB is showing .026 Hastings was .014 to .022 for there specs. Which way should I go?
#3
Thanks, I noticed the KB rings have a moly top ring different from the Hastings rings I have. Do the specs for ring gap for the KB277 hold true for both ring types? Probably overthinking it but thought I would ask before putting it together. I try to live by the 6 Ps.
#6
Just have to ask why on earth you would use a cast ring instead of moly ? That being said you definitely have to go with the KB specs on ring gaps. I usually add a couple of thousandths to that.
#8
#9
I use the Hastings Moly rings in just about every naturally aspirated engine I build. They seat while on the engine stand as long as the cylinders are finished correctly and last forever.
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sx455raidercelticfan
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January 13th, 2011 05:05 AM