bomax Posted September 26, 2005 Report Share Posted September 26, 2005 Hey guys, sellin my LQ9 stage 2 heads from Patriot Performance. They flow about 300cfm. I bought them new and had them on my ride for about 3k miles. In excellent shape!! $900 + shipping, or pickup near Austin, TX. Quote Link to comment Share on other sites More sharing options...
j4nash Posted September 26, 2005 Report Share Posted September 26, 2005 what compression would I see with them on my 408 with 15cc pistons? Quote Link to comment Share on other sites More sharing options...
Z06 DREAMING Posted September 26, 2005 Report Share Posted September 26, 2005 are they complete or bare? Quote Link to comment Share on other sites More sharing options...
bomax Posted September 26, 2005 Author Report Share Posted September 26, 2005 j4nash: I can't really say for sure... They have 72cc chambers though if that helps.. Z06 DREAMING: Good question! They include dual springs and new, larger valves. Here are the exact specs: New OEM GM castings 72cc Chambers 5 Axis CNC Ported Patriot .650" Dual Springs 21-4N Stainless Valves Bronze Guides Titanium Retainers (Not 100% that mine came with these, since mine are magnetic) 5 Angle Valve Job Quote Link to comment Share on other sites More sharing options...
slimsoftball Posted September 26, 2005 Report Share Posted September 26, 2005 what compression would I see with them on my 408 with 15cc pistons? <{POST_SNAPBACK}> Might be a question for your engine builder. Or just calculate it yourself. There are several online sources where you plug in the numbers and it will tell you. Quote Link to comment Share on other sites More sharing options...
bomax Posted September 30, 2005 Author Report Share Posted September 30, 2005 Still available... Quote Link to comment Share on other sites More sharing options...
BenKey Posted October 1, 2005 Report Share Posted October 1, 2005 what compression would I see with them on my 408 with 15cc pistons? <{POST_SNAPBACK}> What CR were you building your motor for? If you were basing it on your stock chamber size, which is 71cc, then these would not alter your CR, but maybe a very small fraction. What size are the valves? I assume 2.02/1.57, or close to? Quote Link to comment Share on other sites More sharing options...
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