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piston rings

Engine

Vehicle Information: Model: 914-6; Year: 1970; Body Type: Targa; Engine (type, size, modifications): 1991cc; Total Mileage: 140000 miles (?);

I intend to replace the piston rings this Spring. I ordered a new set of rings and received a Deves set. I believe I have the 911T engine with the KB pistons and cylinders as opposed to the Mahle set. I am no fan of the Deves style of oil ring. Can I substitute the oil ring from a new set of rings for the mahle P & Cs? I know piston ring No. 1 is wider for the KB versus the Mahles set, but are the other rings the same between the two sets of rings?

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