I've got a Honda distributor sitting here and I am not sure what it is from. I thought someone here could help me identify it. There does not seem to be any part number cast into it. The cap is an oem honda part that says TEC on the outside and has the numbers PT2/3 and M10307 on the inside. A GSR distributor cap I have for comparison is just a tiny bit bigger, with the holes about 1/8-1/16 out of alignment.

Anyone know for sure what it is?

 

Sounds like an LS or B16 distributor.

Run down to autozone and buy an LS and B16 distributor cap, if the B16 fits, it's a b16, if the LS fits, it's an LS. Return the caps to autozone when you're done.

 

Not a bad idea. I was thinking it was an early b16 dizzy......