I've got two fan spacers I don't know what they go to.I think one is a SBC and the other is a BBC.
1st one :PN 3857041 it's 1 1/2" tall has a smaller dia bolt pattern and is HEAVY,has General Detrolt in a box as a logo.

2d one: PN 3927793 it's 2 1/4" tall alu w/ larger bolt pattern.

as always,Thanks for great info.
Steve

I've got two fan spacers I don't know what they go to.I think one is a SBC and the other is a BBC.
1st one :PN 3857041 it's 1 1/2" tall has a smaller dia bolt pattern and is HEAVY,has General Detrolt in a box as a logo.

2d one: PN 3927793 it's 2 1/4" tall alu w/ larger bolt pattern.

as always,Thanks for great info.
Steve
793 is for 69-75 chevelle/pass 6 cyl exc CAC and 69 8 cylinders (exc CAC automatic Hd radiator and 396)
041 is for 65-67 pass 6 cylinder w/o fan drive, 68 pass/camaro 8 cylinder (exc. fan drive. CAC and 396) 68 chevelle (exc HD radiator, CAC, fan drive and 396)

Cool
Thanks for the info!!

Steve