Larger Oil Filter for Gen 1 SHO

[DeepPower]

Just got an oil change (Mobil 1) and I brought my own filter, a K&N HP3001. I'd read here that the larger oil filters are supposed to fit, although they might be a bit close to the exhaust manifold.

I went to an oil change place close to where I work, my first visit, and they told me the K&N was too large a diameter. Isn't that size supposed to fit?

 

[sho_ted]

WONT FIT on my 94 atx

 

[DeepPower]

WONT FIT on my 94 atx

What larger oil filters fit on your 94 ATX? Does the Motorcraft FL1A fit?

 

[Irish Pride]

I use FL1As on both my SHOs. Only filter ive used in years.

 

[black92]

Larger (FL1A filters) will not fit with gen 1 starter.
EDIT:
I stand corrected, Larger FL1A filters may fit with Gen 1 starter. However I had clearance issues which I believe was due to a starter. I do have a re-manufactured starter, but I would be surprised if the starter changed size. I will gladly attempt again as the FL1A filter is a highly used filter in my garage, and I could eliminate stocking original sized filters.

 

[sperold]

There must be a lot of variation in the engine, rad fan and starter locations in the Gen I series. Maybe they used different rad fan housings when they found themselves in a pinch.
I just changed the oil and filter in my 90 and I used the Motorcraft FL-1A filter and had no issue placing the filter in place.
Now that it is installed, I can fit my hand between the end of the filter and the rad fan plastic assembly. It is a little less than 2", but not much less.

On the Gen II's, both standards, the space seems even larger (93 and 95) but I cannot access them easily now to give a dimension.

In all cases, it never occurred to me that they would not fit as they installed so easily.

 

[zak]

On my 95 MTX the FL1A fit fine (I used Mobil 1 equivalent size for better filtering), until I put a dual core radiator in, then getting the filter out was a very tight fit. I tended to change the filter whenever pulling the radiator out to recrimp

 

[sperold]

I went to an oil change place close to where I work, my first visit, and they told me the K&N was too large a diameter. Isn't that size supposed to f

When you look at where the filter is going, at first glance it looks too large, and overhangs the mounting pad by quite a bit.

But in fact it does fit.

The little filter (FL-400S) has the gasket at the outer edge and the filter is a little less than 3 inches in diameter. The big filter (FL_1A) has the gasket located quite a ways in on the diameter, and it is 3 3/4 inch diameter.
But when you put the filters end to end, the gaskets line up perfectly.

 

[Irish Pride]

Larger (FL1A filters) will not fit with gen 1 starter.

My two SHOs both have FL1As. White 89 and white 91+.

 

[black92]

What starters after you running, gen 1 or 2?
I will try again. My 91 still has a gen1 starter. Last oil change I attempted to install an fl1a which did not fit. I even tried a second filter without luck. Both filters hit the starter.

 

[Irish Pride]

Stock starters on both.

 

[black92]

Stock starters on both.

Ok
Thank you

 

[SHOdded]

I think you may be thinking of the FL1A? FL820 doesn't offer a filtering advantage AFAIK. If there is room, you could try the FL1A. But I think the BOSS would still come out ahead in performance.
https://shoforum.com/index.php?threads/larger-oil-filter-for-gen-1-sho.135011/#post-1470995
http://www.v8sho.com