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Old 11-02-2008, 11:23 AM
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Which Heads Will Work

Hey everyone. Question: I have a crate 383 stroker (360hp/410lbs) on Sealed Hyperutectic Pistons(yields 9.5:1 CP, flat top, 2valve relief); GM Cast Iron heads (Valves: 1.94int/1.5exh)(72cc/170 runners)...Compressed Head Gasket of .041..Standard deck height..Comp Cams Hydraulic Flat tappet .477/.480 lift; 110 lsa; 224/230 dur. @0.50" Advertised Dur. 268/280. I want to run Aluminum Heads (preferable trick flow's, AFR, Dart) with 190 or 195 intake runners & 2.02/1.6 valves. What size Combustion Chamber should I use to keep a CP ratio of nothing greater 10.5. (Street Driven/ Maybe some Track car).....Thanks

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Old 11-02-2008, 11:50 AM
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You`ll likely need a chamber size in the 68 to 70cc range.
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