[BG383]

Hey everyone. new guy here. Question: I have a crate 383 stroker (360hp/410lbs) on Sealed Hyperutectic Pistons(yields 9-9.5:1 CP) W/ Cast Iron heads (1.90int/1.5exh)(76cc/175 runners).....I want to run Aluminum Heads. preferable trick flow's with 190 or 195 intake runners. What size Combustion Chamber should I use to keep a CP ratio of nothing greater 10.5. (Street Driven/ Maybe some Track car).....Thanks

[SSedan64]

Originally Posted by BG383

Hey everyone. new guy here. Question: I have a crate 383 stroker (360hp/410lbs) on Sealed Hyperutectic Pistons(yields 9-9.5:1 CP) W/ Cast Iron heads (1.90int/1.5exh)(76cc/175 runners).....I want to run Aluminum Heads. preferable trick flow's with 190 or 195 intake runners. What size Combustion Chamber should I use to keep a CP ratio of nothing greater 10.5. (Street Driven/ Maybe some Track car).....Thanks

I don't know all your Engine specs but I'll try this.
4.030" Bore X 3.75" Stroke, 76cc Head, .025" Deck Height, .041" Gasket, 8ccPiston Volume, = 9.02CR
With .028" GM Gasket = 9.25CR
With 64ccHead, .025" Deck, .028" Gasket = 10.44CR
With 64ccHead, 0 Deck, .041" Gasket = 10.73
May differ , unknown piston cc's, Do you have 2 or 4VR/Valve relief, Dish etc..

[SSedan64]

This may help you also>>
http://www.chevytech.com/3c10o15.html