I am going to be putting my heads back on soon and had a question on the impala head gaskets. Does anyone know the part number for the felpro impala gaskets? And are the gaskets as good as the GM impala head gaskets? I am tring to save some money and the felpros are 30.00 cheaper. But are they as good for aluminum LT1 heads as th GM? Is the compressed thickness the same? Thanks in advance for your help.

 

I believe the impala gaskets are a little thicker, but the regular LT1 fel-pro gaskets that I used in my rebuild were good to go. I have had no issues.

 

The part number on the Impala and Camaro Head Gasket are the same from Felpro, the thickness of it is the same as a stock Camaro GM Head Gasket... The GM Part number is 12524672 and the Felpro Part number is 9966PT, thats the Parts Number from O'Reilly's at least...

 

I looked up the Impala SS head gasket yesterday at autozone. It has the felpro part # you guys are talking about 6633pt but on the package that it is in it says "Replaces gm part # 12551488 " Isnt that the lt4 head gasket???

Jason

 

ttt