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Subject Built motor question. Worth a shot
     
Posted by BigTDogg (MA) on September 12, 2014 at 10:35 AM
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Message So while this is NZR, this place has some of the smartest car people I've ever known, so I figured I'd ask here.

My Subie's #1 ringland blew out. Leakdown is at like 85% in 5 seconds, so I need a rebuild.

The cost difference between a new Subaru shortblock and a rebuilt one with Wiseco pistons is negligible. My question is reliability. I won't be really going balls out with this engine, as it's my DD, but I don't want to blow another ringland either.

Could partially be due to age (167K miles) or bad fuel or a marginal tune. Whatever the reason, I don't want to do it again.

I know forged pistons are stronger, duh. But is the piston slap something to be concerned about with an aluminum block? Generally speaking, would I be able to get 50K out of the engine before it drank oil like an Irish sailor?

Thanks in advance. Oh, and to keep it Z related...


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