will manley 2.02 1.6 valves fit on a stock ls1 head?
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will manley 2.02 1.6 valves fit on a stock ls1 head?
I will be upgrading my valves soon and was wondering if the 2.02 int and 1.6 ext valve would fit on a stock ls1 head with out doing anything to the head (i.e. porting the valve bowl.)
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You will have to have the valve seats cut for the new valves. Also, trust me you will want to do some bowl work to these heads. They are very rough from the factory and the seats do not transition well from the bowl area.