07-18-2016, 05:02 PM
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CC Member
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Join Date: Feb 2012
Location: Keller,
TX
Cobra Make, Engine: Lonestar Classics LS427. Self-built 408W, AFR 195 heads, Performer RPM Intake, Quick Fuel 750, 407rwhp, 479rwtq
Posts: 549
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Not Ranked
From memory:
Bore - 4.030
Stroke - 4
Rod length - 6.2
Cylinder cc - 72
Piston dish - 15.8
Piston to deck - 0.017
Head gasket thickness - .030
Head gasket bore - 4.060
Static compression - 9.55:1
AFR recommends those plugs "as a starting place" with these heads.
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