Quote:
Originally Posted by Kenth
Again, the 1967 (and the revised 1966) rod is stamped 6 qts.
This is for the amount of oil in the tray, add to that whatever goes into the filter used.
All other rods is stamped 5 qts for the amount of oil in the tray.
Obviously the rod cannot measure the oil in the filter used.
(I would love to see a Pontiac V8 rods stamped 7 qts from factory)
The short filter was introduced for 1967 Pontiac V8.
Long filter for 1966 and earlier.
FWIW
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Kenth, thank you so much for keeping the record straight, I realize you have a library with most any Pontiac spec at your fingertips, something I used to have, but due to space constraints and life, my printed parts manuals were lost decades ago.
I did say, "near as I can remember," that was in 1970, It was 54 years ago. I'll admit that my recollection was wrong. I also was reading the text from GTO forum that the guy said his owner's manual stated capacity was 7 quarts with filter and transposed that information, my mistake.
I was wrong about the printing on the stick it should say " oil capacity 6 quarts"..........
With oil additive specs changing there may have been oil grade recommendation stampings that changed through the years. My 71 455 has oil grade recommendations stamped on it besides the oil capacity.
However, with this criticism of my memory, the point that the 67 stick is marked 6 quarts, for a 7-quart total crankcase capacity including long oil filter is confirmed. The 66-67 stick is a different part than 65 or 68. sticks that read "oil capacity 5 quarts"
Now Kenth, if you would refer to your library and also confirm that a 65 oil pan is the same basic unit as the 66-67 pan, some of this doubt about different oil pans can be laid to rest also. I can tell you that if you have the 65, 67, and 68 oil pans lying side by side they look the same as far as dimensions, but not having the parts manual any longer, I have no idea if part numbers from GM changed, or not.
One change is the drain plug moved from the front center, to the driver's side of the sump, I have no idea what year that happened, it would reflect a different GM part number though.
The aftermarket oil pans are one number, and it covers up to 1981, 301/265 engines as well as 1955 287, through 1976 455's. Most aftermarket stock replacements come with the 1973-1981 style baffle.
If the factory oil pan was redesigned for higher capacity, then you'd think oil pumps pickup screens would be changed for the differing depth of the pan, which didn't happen. They did change over the years due to improvements, but still fit the same in a late oil pump, as long as you have the same size tubing of both pickups. The factory never lowered the pickups to account for a deeper pan.
I'll defer to the man with the GM manuals and books here.
I did find a picture online with the 67, 6 quart stick lying next to the 68 up, 5 quart stick, the difference of the markings was roughly 1/2 - 9/16 of an inch with a tape measure in the same picture. All the factory did was raise the full mark, the total stick length was the same on both.
If you want to become completely confused there are all kinds of info on the net about Pontiac Stratostreak V8 oil capacities, some is reliable, and some is incorrect.
Even some of the printed matter in owner's manuals were incorrect as GM sent a bulletin in 1965 saying the owner's manual and the shop manual were incorrect.
As I stated, with a factory unaltered oil pan I run 6 with a filter, 7 if the car will be cornered hard. That has worked out in the real-world experiences. In the end all I care about is the sump has enough oil in it to keep the pickup covered. Anyone that wants to debate oil capacities, have at it.