what's the limit on stock bottom 5.3 ??
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what's the limit on stock bottom 5.3 ??
Is anyone running 12 psi or more on a stock 5.3? I want to push my 5.3 to its limit,currently 10 psi ,will be doing cam,pushrods,DOD delete,timing set,LTs ,ORY,3 core intercooler (2 core now) but don't want to mess with bottom end and heads. Can it take 12 psi or more?
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Yes, it can handle 12lbs but you pushing it if you want it to last. It's all in the tuning at that point, also you will definitely need to spray meth. I think you will run in to belt slip before you reach the 5.3's limits, assuming you have a 6 rib setup.
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Your could get a set of Forged Wiseco stock bore pistons, and a set of ARP rod bolts. That would be a nice little insurance package. If you want find a set of decent K1 or Callies rods.
I know you said "stock", but I thought I'd add a little info in case you were referring to "stock displacement."
I know you said "stock", but I thought I'd add a little info in case you were referring to "stock displacement."
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Well I know my tune was off a bit, but mine didnt last but a short bit @ 18psi! But I would suggest have yourself a nice replacement waiting or like forcedtq said throw some parts at the 5.3l!