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Yes I just made an inquiry to FelPro about the 2 part #'s, the local parts guy where I purchased my current set said the only visual differnece is an 0-ring type gasket but could not be sure, and if you open the seal on the box you are stuck, glad I didn't. Thank's the HST
9957 PT-1 was the corresponding part #, a "problem solver" fix that makes since, as I was inspecting the engine's intake manifold's mating surface right at the thermostat area (the failure of which was probably the cause of this repair) that area don't look like a gasket was even used at the fatcory rather a gasket maker sealant, I requested the .pdf file for torque specs. from FelPro I have to get a second opinion from the above posted spec's no offence to the publisher I'm a second and third opinion researcher. I will post the link from FelPro (when I get a response) to the .pdf file. The Co. is in MI. got to be cold up there it's 11:55pm here sunshine state time 30 degrees right now, to cold for driveway mechanican around :-)Curt
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