Discuss Difference between 5.0 and 5.0 HO on AllFordMustangs.com, the place for Mustang enthusiasts.
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I've got a buddy needing a 5.0 HO and I think my uncle has one but I don't know the difference. I mean I know how to tell a regular 302, but I've got no idea about the HO's, so if ya'll could tell me how to figure out if it's an HO or not, you'd be helping my uncle sell the motor and my friend gain the motor. Thank you.
All 302's look the same. Any 302 can be made into a H.O. If your asking which one came in the Mustangs (fox body) then the answer is: carbed engines 1983-85 Fuel injected 86 to 95. You can get a Boss 302 from a 70 Mustang, that would be considered an H.0.
But like I was mentioning, any 302 with good compression, the correct cam and heads will make very decent power.
Aren't mustang blocks stamped Y and truck blocks stamped X or did I get that backwards?
87' notch 331ci w/juice on board NOT anymore she's going turbo!
02' Lightning dyno proven 497hp and 535tq
91' LX bone stock w/100hp flowmasters SOLD!
88' coupe flowmasters and little bolt ons
85' coupe awaiting a 4.6 mod motor swap out of the old 01GT
Yeah, I know, and I know the firing order is that of a 351W on the HO's. But I just need to be able to tell the difference. My uncle's 302 came from an 85 Crown Vic. So we know it's around that time that Ford made the HO's, we're just not sure if it is one.
I have a 1990 5.0L HO, i kno there is an aftermarket cam in it but im not too sure wut it is. Is there any way to figure this out without takin the engine apart?
I also have a clutch problem, i put a clutch kit in my car to reduce the stifness of my clutch pedal but i no feel a rubbing or binding everytime the pedal is pressed/released. Anyone have a clue wut this could be?
Not sure if you still need the info but here goes anyways. I'm sure alot of you out there knows way more than i do but this is what my take is of figuring out a HO from an ordnary 302. one of the fastest give aways for a HO is the factory headers. you just would need to make sure they were what came with the car from the factory. the next give away is the aluminum valve cover. I've never seen a 302 with factory aluminum covers unless they were on a boss motor or HO. the next option is to check the firing order which should be
1-3-7-2-6-5-4-8 which is due to the different Cam that is in there. Plain 302's are 1-5-4-2-6-3-7-8 (same as the 289). everything esle on the HO and 302 s are the same. same block, same stroke, same bore. good luck