Po1-po2

[Michael S.]

What's the difference between PO1 and PO2 Caps?
Thanks, Michael

[Jack C.]

Re: Po1-po2

The P01's have the turbine fins terminating pointed at the center cap where the P02 fins are not pointed but flat at the center cap. Do a search from about two years ago and you will find pix and quite a lot of discussion. My 68 has the P01 option noted on the tank sticker but I believe that the actual design change was incorporated during 68 because I have the P02 design which I believe are the original wheel covers.

[Terry B.]

Re: Po1-po2

Michael,

Here is a picture of a PO-1 that Jack is describing. PO-2's are much easier to find our there than PO-1's.

Terry

[Dale C.]

Re: Po1-po2

Another difference is the fin that terminates at the valve stem is shorter on the P01 than the P02.

[Steven G.]

Re: Po1-po2

Po1 have a flat removeable center cap, Po2 center caps extend outward, a very noticible difference. Steve

[Michael S.]

Re: Po1-po2

What's the difference between PO1 and PO2 Caps?
Thanks, Michael

Would someone post picture of PO1 vs PO2 ?
Thanks

[Terry B.]

Re: Po1-po2

Here is a picture comparison of a PO-1 on the left and a PO-2 on the right (Pictures taken by master level judge Mike Treece). I think the outer center caps on PO-1's and PO-2's are the same.

[Terry M.]

Re: Po1-po2

Terry posted new pictures above, but trust me y'all are not plowing new ground. There is an earlier thread on this subject with similar pictures posted by me. If my computer didn't crash a while back I could easily find that thread by trying to post those same pictures again -- the software would point me to the previous posting of the pictures -- but I can't find them in my computer. All this electronic wiz bang stuff is not what it is cracked up to be.

[Randy C.]

Re: Po1-po2

I've seen that style of wheel cover with the flat removable center cap on Monte Carlos of that age, but not Corvettes.

Randy C.

[Terry M.]

Re: Po1-po2

I've seen that style of wheel cover with the flat removable center cap on Monte Carlos of that age, but not Corvettes.

Randy C.

Randy, Look carefully at the pictures Terry posted. Neither wheel cover has the flat center emblem.

[Randy C.]

Re: Po1-po2

I missed the mark on making a clear statement. There was a previous comment that the PO1 has a flat center cap and the PO2 has a raised center cap. The pictures definitely show both the PO1 and PO2 with the raised center cap. But I have seen a similar wheel cover with a flat center cap on Monte Carlos (and I believe Impalas) of that era. I don't know what the option code was for those wheel covers - they do look very similar to the PO1/PO2 design except that the center cap is flat.

Randy C.

[Terry M.]

Re: Po1-po2

Those of us who visit the Florida Regional in January get to see a Monte Carlo so equipped among the automotive "yard art" on display in Kissimmee's Old Town each year. IIRC it is a 1971, but my knowledge of Monte Carlo's is limited.

[Paul O.]

Re: Po1-po2

GM had several versions of Turbine style wheel cover over the years. For Corvette PO1 and the PO2 these were 15" covers. Impala's Monte Carlo's and other Chevy lines had 15" but also a 14" version. Then for each model there were different center caps from flat then a short raised to then the full raised PO1 or 2. Buick Riviera also used a Turbine type cover the center cap was full raised but had a large "R" in it and was gold in color also the cover had a gold hue.

The smaller 14" covers the raised ridge that is toward the outer edge the cover is is in the center of the outer ring not at the edge like the 15".
I am sure there maybe other versions that I have not not seen but those are the few I know.

I also have seen a early 1969 S/N 325 I think PO1's on the left side and PO2's on the right .


This subject has been cover many times as Terry has stated check the Archives you will have some reading.

Paul 18046

[Dale C.]

Re: Po1-po2

Randy
Not to confuse the situation more but very early in the 68 model there was a flat center cap and not like the chevy car one but more like the PO2 the difference being in the outer ring being flush with the inner ring. There was a picture of this cap in the first advertisments of the delux wheel cover. I don't think this version of the PO1 made it to the production cars.