Join Date: Dec 2006
Location: Severna Park, MD
I'm thinking it's not wired correctly. The reason, I state this, I run the same starter purchased from PA Performance and installed in '08. My block is a 289 (although a 5 bolt). My model is an 1806 and was correct for an auto tranny. However, when I later converted to a T5z, it still works. The 1881 is for a manual, as in your case a top loader, it should be correct too.
It appears you have power to the starter motor and not the Bendix drive and it's not engaging and that's a wiring connection issue. Therefore, re-visit your wiring schematic that came with the units and follow it carefully. Keep us posted with your findings so that others may learn from this.
64 1/2 Poppy Red Cvt. Resto-Mod
333 Cu.in. T5z, 3:55, Dual 40 mm DCOE Webers
Performer RPM, CI cam, TFS/TWs, Tri-Ys, Discs w/Shelby Drums