IS THE GM 3100 SFI V6 A NON-INTERFERENCE ENGINE ?

Asked by Mar 28, 2017 at 01:53 PM about the 1999 Pontiac Grand Prix 4 Dr SE Sedan

Question type: Maintenance & Repair

THIS MOTOR IS IN A 1999 PONTIAC GRAND PRIX, & FOR SEVERAL GM MODELS IN THE 1990'S, GM PUT HOLLOW CAMSHAFTS THAT WIND UP BREAKING IN THE MIDDLE.
NOBODY, INCLUDING SEVERAL DEALERSHIPS I'VE CONTACTED, CAN TELL ME IF THIS 3100 SFI V6 IS AN INTERFERENCE, OR NON-INTERFERENCE ENGINE.
I FOUND SEVERAL AFTERMARKET SOLID CAMS AVAILABLE, BUT IF THIS IS AN INTERFERENCE ENGINE & IT BENT OR BROKE VALVES, I DON'T WANT TO WASTE THE TIME.

1 Answer

74,705

From what I am finding out it is a interference engine.

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