what is the diff. between a none ho and a 302ho
i have the roller motor that came with the car but its now a 347 and is a drag motor that that ran low 10. its too much for the street. want to turn the car back to a daily driver. and save the motor for later.
302 non-HO cam uses the normal firing order for 302 engines going back to the 60's.
302 HO cam uses the same firing order as a 351W.
Don't get too caught up in it. It is only a firing order change and doesn't necessarily denote any power increase. Early HO engines weren't exactly powerhouses.
This is a false statement. 87-93 SEFI "High Output" motors came with a better breathing cam, heads, intake, and throttle body than did the "base" 302s, and made about 25 more horsepower. Also, except for the '93, HO motors came with forged pistons, and I do not know if the base engines did or not. That '86 Merc engine would be a turd compared to a HO motor in your car, and it might have flattop pistons anyway, which would end your choices for cylinder head upgrades.
fordfuelinjection.com is a good place to start looking for EFI information.
Not false at all. I answered his question correctly. Where in this thread is there any mention of any engine newer than 1986 until your post? Get off your high horse.
Early HO engines were virtually the same with a 351W firing order just as I said. The '85 HO is the first Ford engine to use a roller cam. When you get to the injected engines is when the changes were more pronounced. Not all HO engines had forged pistons until '86. Heads were nothing special. The same parts were used on trucks.
I agree that the '86 Grand Marquis engine would be a poor choice as a replacement for a '85 HO carbed engine. It would be an absolute turd. Wrong everything.
A good choice for the OP would be a '89-'93 donor car to get the wiring and drivetrain from. This would be a good foundation for a nice running SEFI setup.
BTW - NikwoaC - nice looking car in your sig.
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?