"87"-302 roller or not????
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Joined: Apr 2004
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From: Missouri
Originally Posted by f100guy
there is no such thing as a roller motor using a non ho firing order, unless i have been in lala land for a long time
also, the Thunderbird/Cougars never had a factory 5.0 HO, either...
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mvoeller2 stated that his 88 wasnt a roller block,is was a roller block if it was a 302 but might not had a roller cam in it,my understanding is that all 302 86 up were drilled and tapped for the spider that holds the roller forks!FORDTRUCKFREEEK said that no birds and cougars came with a h.o. is incorrect,89-92 they came with the 5.0 h.0. in those years along with the 3.8 super coupes!
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From: Destin/Ft. Walton Beach,
Yes, there are roller motors with the non-HO firing order. That's because they're non-HO motors. I have one that was pulled from a 90 Town Car. The cam can be swapped for an HO cam, factory or aftermarket, and the firing order be changed also.
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you can also run a regular hyd. flat tappet cam and lifters in a roller block you just half to change your pushrods and distributor gear!
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My 88 block was the original motor, and it wasn't drilled for the roller tie down. I have run into this on several other pickups of these earlier years. And as far as a roller cam with non ho firing order, they are out there, it was used from 92-93 in non-mass airflow vehicles. I also had a 95 with mass air flow, and it used the HO firing order. Now I drive a 97 explorer with 5.0 and it uses the HO firing order also.
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From: shepherd
it doesn't matter if you call it 351 or ho firing order, it's the same and all roller 302's have that firing order no matter if it is a roller motor in a 95 truck or an 87 mustang. i don't think that town cars had Ho's in them but i am going to check. ok i found out they are just regular 302's like the crown vics and grand marquis. a mark 8 has a roller cam though.
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Its not a "one of a kind" engine. This is completely stock. If you don't believe me go to a parts store and have them look up a cam for that year. It will be a non-HO firing order roller cam. (That's if they can supply that information.)
Last edited by mvoeller2; Dec 22, 2004 at 09:32 PM.
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From: Destin/Ft. Walton Beach,
Like I said....I have one too. 150 whole horsepower. Look up a 90 Town Car 5.0 engine, f100guy. It's the least you could do, since it was insinuated that someone didn't Know what they were talking about.
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Late 80s linclons,crown vics,marquis DID have roller motors in them and had 302 firing order! They were not H.O. motors. They were speed density EFI. If you want to know if the motor is a roller type block - check the height of the top of the lifter bore cause the roller motors have taller lifter bores to house the roller lifter which is taller than a flat tappet.The taller roller lifter requires the use of a shorter push rod. I have seen the taller roller type lifter bores on a motor that ran flat tappet cam-and the bosses for the spyder-retainer were not drilled or tapped..but I would consider this a roller - compatible block because the lifter bores will house a taller roller lifter...but you would have to drill and tap the holes in the bosses for the spyder-retainer...
Last edited by 70-fairlane; Dec 27, 2004 at 10:43 AM.