Mobil 1 Oil Fill Cap??

[C. Charles Hahn]

Does anyone here with a car equipped with the LT1 or LS1 engine have the Mobil 1 Oil Fill Cap on their engine?? if so, does anyone know the dimensions and the thread pattern on it (pics perhaps??) I'm looking to put one of these on my 4.3L Vortec V6 in my 98 Chevy Blazer and wondering if one of these will fit, and if so which one of the two (LT or LS series)



Thanks in advance! :wavey