powercatfootball

I have a quick question. I picked up a 5.0 302 crate motor with less than 1000 miles on it with AOD still attached. The transmission had just been rebuilt. He is convinced that the motor is a H/O. I have the engine here now, and I am slowly pulling stuff off of it. I have been searching the internet hoping to find a good way to tell if I have a H/O or not. The top of the plenum does not read H/O. I have read that if it has tube headers it is H/O, cast iron headers non H/O and this is cast iron headers. Figured I'd join the forums here and see if I could get a better answer than I have been getting locally. I have block casting numbers E7TE 6F19. 87 Truck Engine, June of '96. Was supposedly ordered as H/O, but am still very curious. Any help greatly appreciated.

mattdel

firing order.
H.O. 302 - 1-3-7-2-6-5-4-8

non-H.O. 302 - 1-5-4-2-6-3-7-8

powercatfootball

The motors cap and wires were removed. Is there any way of determining the firing order without those things present? Thanks

tohoopty

also if you pull the plate on top of the intake it should have h.o stamped on the intake.the non h.o. motors are big turds.i got one in my car and it sucks very bad.but it sounds good so i dont really care.