08 F250 STREET TRUCK BUILD

NathannialD · Aug 31, 2013

not worried about the scoring i can see in the pic?

B585Ford · Aug 31, 2013

You don't waste any time.

Beechperformance · Aug 31, 2013

delong_1 said:
not worried about the scoring i can see in the pic?

It looks like it in the pic but its not scored. They look beautiful. I was shocked how good the cylinders and bearings look.

powerstroked08 · Aug 31, 2013

Sweet deal Wes. Good luck with the build man, it should be relilable with those pistons and arp's. Are you going to do the gapless top ring?

Beechperformance · Aug 31, 2013

powerstroked08 said:
Sweet deal Wes. Good luck with the build man, it should be relilable with those pistons and arp's. Are you going to do the gapless top ring?

I don't know. To be honest. Are there any disadvantages?

powerstroked08 · Aug 31, 2013

I'm no expert but on the racecars we would run a gapless top ring to keep some extra compression and a standard bottom ring. If you run both rings gapless we found that the air gets trapped between the two rings and they will flutter to bleed off pressure. So I would think that having a gapless top ring would be a good thing. I really don't know of the disadvantages. Hopefully somebody with more knowledge on this will chime in.

NathannialD · Sep 1, 2013

I think you mean second ring....

Morgan@Midwest Diesel & Auto · Sep 1, 2013

delong_1 said:
I think you mean second ring....

Nah, he means top. In every other real performance application gapless seconds are usually a no-no unless running a gapless top. Unfortunately, with factory pistons we do not have the option to go gapless with the tops because they are a keystone style ring. Personally I don't think that there is very much of an advantage of running them. With the right bore and hone job you will be just fine with standard rings. My 2.6 truck doesn't have gapless rings. Has literally no oil in the blowby tubes at all, and I leave the line at 5500 rpm. And it's a 6.4. But either way, it's up to the op in his preference.