BB oil pans
I know this has been asked before but what is the current part number for a 65 BB oil pan and how correct is it for judging ?
-
-
Re: BB oil pans
Bill-------
GM #14091356. Add corner reinforcements at the time of installation and it's VERY close to the original pans. How does it judge? I don't know.
By the way, you don't think that GM created all new tooling to produce this pan, do you? For a low volume, Corvette-only piece like this the chances are about zilch of that happening. I feel very confident that the original tooling is used to produce this pan. The fact that this pan is still available is probably due to the fact that because of its low sales volume the tooling has lasted for all these years. But, when it finally wears out, guess what happens?In Appreciation of John Hinckley -
Re: BB oil pans
Bill-
The original 1965 BB oil pan and possibly all of the 66's had a hole in the front lip for a 1/4-20 bolt to go up into a captured nut in the lower center of the timing chain cover. So, to be more "judgeably-correct", just drill a hole in the pan, and install the bolt. Of course, you need to have a correct timing chain cover that has the correct captured nut. The 1966 TIM & JG shows a picture of this bolt at the top of page 173. Hopefully the new 65 TIM & JG will have the same or similar picture. By 1967, the hole in the pan and the nut in the timing chain cover were no longer used, as stated in the 1967 TIM & JG.Comment
-
Re: BB oil pans
Thanks Wayne . I have an original 396 pan It has flat sides unlike the later pans that have recesses in them . My pan has lots of rust so I need a replacement. Also the 65 timing chain cover has a smaller timing tab than the later BB. I sent pictures of the orig pan to Tony S. for the new manual I dont know if its in there or not .Comment
-
Re: BB oil pans
Bill------
Yes, the 14091356 does have small vertical impressions on the sides. If these bother you they can easily be filled with silver solder, brazing, or, most simply, body filler. Sand and paint. No impressions.
One other slight difference with the 14091356 (as well as its immediate predecessor GM #3977591) is the fact that the welded-in internal baffling was lowered with respect to earlier pans (due to the longer stroke of the 454). So, the spot weld marks on the sides of the pan are in a slightly different location compared to pre-1970 pans.In Appreciation of John HinckleyComment
-
Re: BB oil pans
Here are some photos of an original 65 BB pan off of #16120 note the lack of cut outs at the corner and the lack of groves in the sump . This is compared to a 69 pan.DSCN1868.jpgDSCN1869.jpgDSCN1854.jpgDSCN1855.jpgDSCN1864.jpgComment
-
Re: BB oil pans
Bill, others: This is a bit of an aside, but what is the difference between '65 Corvette 396 oil pans, and the other 396 oil pans of 1965 ? I'm looking at my copy of the Chassis P&A30 catalog, revised July 1, 1965, and I see three parts numbers. The Corvette is 3872429; the Hi-perf passenger 396 is 3871282; the low performance passenger 396 is 3859937. I think the possible differences will be capacity, trap door (or not), dipstick location, drain plug location.Comment
-
Re: BB oil pans
Wayne-----
The Corvette big block oil pans were unique to Corvettes. The other big block pans were specific to the particular car lines they were specified for. Most, if not all, of the others had a side drain, no trap door, and were 4 quart capacity rather than the 5 of the Corvette pan. I believe the other chassis applications created the need for special configuration oil pans and most will not accommodate the Corvette oil pan.In Appreciation of John HinckleyComment
-
Re: BB oil pans
Wayne ,If I had to guess I would say the Corvette had the rear drain ,trap door,&the baffle . The HI perf pass. could have been the same with a side drain .And the low perf could have had a side drain and no trap door . I dont know about the capacity . I have a 962 engine that was a 360 hp chevelle block and it had a side drain and no baffles .Comment
-
In Appreciation of John HinckleyComment
-
Re: BB oil pans
Bill-
Yes, Joe is correct. I recently sold a pile of big block oil pans. None had the trap door or the circular vertical "shroud" around the oil pump pickup, and the rear drain offset to the driver side. I see the same thing at swap meets. I have only found one early original big block oil pan at a swap meet in all the years I've been going to swap meets.
WayneComment
Comment