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Old 08-10-2015, 08:54:58 PM   #1
70-SS/RS-L78
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embossed AC PF-25 oil filter

I was going through a bunch of stuff and I noticed I have 2 embossed PF-25 AC oil filters, The embossed writing on the bottom is different on these 2 filters, Which one would be correct for a 1970 396.. While searching the net for an answer I noticed there is also a 3rd style PF-25
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Old 08-10-2015, 09:38:10 PM   #2
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1st style on the right (68-70). I've seen it for sale for $300 US.
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Old 08-11-2015, 11:32:41 PM   #3
70 SS/L78
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Assembly line oil filters for 1970 look like this...




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1970 SS/L78 *Concours frame-off restoration in 2012* Classic Copper & Saddle Interior, matching #'s, 4:10 gears. Owned since 1991
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Old 08-15-2015, 06:11:22 PM   #4
70-SS/RS-L78
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Scott I thought they only put the filters with black writing on at the factory before startup, did you have that repainted and have the black lettering silk screened? It really looks Great!!
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70 Kentucky Gold SS/RS-L78 36,000 Miles
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90 Old's Touring Sedan. SPRCHRGD-L32/3800
90 Old's Touring Sedan.
1983 El Camino Lingenfelter swap LS1 Stroker 4L80E Swap
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Old 08-16-2015, 06:54:54 AM   #5
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I need ONE or more correct assy line filters !!!!!!!!!!!
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Old 08-16-2015, 07:45:24 AM   #6
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I have an embossed filter on my 70 but I thought the research done by the Corvette/Chevelle guys indicated that the color screen logo was Phased in around May of 70. Anybody have info on this?
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Old 08-16-2015, 08:14:53 AM   #7
70COPO
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Forget it, I found the opinion already Black and White for non service on the sides is the consensus for the Chevelle guys.

To complicate things a bit there is the Joe Lucia Research. which states color screening was in use on the PF-11 and PF-30 Years earlier...

http://www.ncrs.org/forums/archive/i...p/t-18888.html

All PF-25's were embossed of course.
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Old 08-17-2015, 12:03:21 AM   #8
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Mark, yes the filter in my picture was redone in black using an NOS filter, I purchased it a few years ago.
As far as I know, the black lettered/logo filter was not available for purchase, it was only used on the assembly line and would be on the car when you bought it new in the late 60's-early 1970. Over the counter replacement filters had the blue & red lettering, however the embossing on the bottom is the same between the two.

If you checkout the website from Charlies old 1100 mile, 1970 Z28, it still had it's original black lettered assembly line oil filter on the car. He has pictures of it on his website.
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1970 SS/L78 *Concours frame-off restoration in 2012* Classic Copper & Saddle Interior, matching #'s, 4:10 gears. Owned since 1991
See photos of my L78 Restoration process....
http://www.facebook.com/media/set/?s...3&l=49999673f6

Last edited by 70 SS/L78 : 08-17-2015 at 12:42:53 PM.
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