Instruct: Classify Amazon reviews into positive or negative sentiment
Query: DOES NOT FIT DOHC 3.4L. No how, no way, no possibility

This product is listed as fitting the 3.4L DOHC engine installed in some Luminas, Cutlass Supremes, and Grand Prix.This WILL NOT fit the core hole specified by GM on this engine. The heater element is the wrong shape to clear the middle cylinder.A Zerostart #3100015 fits very nicely.[...]