When putting my new engine back into my 1970, I just couldn't stand the thought of putting that icky oil bath air filter back in, so I got out a Dremel tool and modified the stock air filter.
First I cut the top open and removed that icky mess of nylon fibers.
Then I used the dremel cutoff tool to trim the flange to about 5/16" That will serve to hold the new paper element centered in place.
K&N E-2630 filter fits perfectly. Inside diameter 7.125", outside diameter 9.0", Height - 2.0" The rubber surfaces are slightly sticky and make great contact top and bottom.
Next use the dremel and cut the bottom ring it off exactly at the vertical-horizontal junction and discard. MAKE SURE you meticulously clean the metal shavings out afterwards. The last thing you want is your engine to inhale those fine metal particulates and ruin your new/old engine.
Apply your new filter into the top lid.
Viola ! Finished product. No more icky oil bath.
Total project cost: $53
4 dremel mini cut-off discs = $8
K&N 50,000 mile washable reusable filter =$45
Project Time: About 40 minutes
Nice job
Curiouser and Curiouser, my 1970/4 oil bath filter does not look like that either internally or externally!
Is your car an early or late build date?
Paul
The Capt'n wouldn't have approved the K'N but good job. Filter looks like what I have on my '70 914_4
Keith
The Capt'n did not like K&N filters.
He did not think they filtered the air well, let too much dirt thru.
Jim
Yes that was one of his points.
I believe not all K&N filters are created equal for filtering properties.
You can substitute a 1973 Pinto paper filter for about $8 from your local flaps, but the fit is less optimal and requires trimming and fussing.
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