Old cylinders compatible with new pistons
I am preparing to modify my stock '82 3.0SC to a hot street engine (some Auto X). The PO rebuilt it to stock specs 5 years ago. It has PMOs and elctromotive crankfire. When he rebuilt, he replaced with stock CIS nikasil P&Cs. I would like to upgrade the cam to higher lift, narrower LSA cam similar to Camgrinders Mod S cam. I know there are clearance issues with CIS pistons so I'm looking at JE 9.5 or 10:5 pistons.
My question is can I use the old Nikasil cylinders with new JEs? Will 10.5:1 require dual plug?
Other consideratons?
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joe
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'69 911 E Targa - aka "RoxiE"
Last edited by joetiii; 04-18-2007 at 04:29 AM..
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