68 bb exhaust part numbers and questions??

[Terry F.]

The assembly manual (from what I can tell) only shows one set of exhaust pipes for 68 corvette. Was there any difference between small block and big block or automatics? Can anyone tell me what the part number was stamped into each front exhaust pipe for bb 4 speed? Thanks, Terry

[Terry F.]

Re: 68 bb exhaust part numbers and questions??

If someone has some pictures, that would be super helpful. Thanks, Terry

[Dick W.]

Re: 68 bb exhaust part numbers and questions??

The head pipes were different and the LH exhaust pipe (I believe) was different for automatics

[Terry F.]

Re: 68 bb exhaust part numbers and questions??

That is what I thought but I only find one part number for each front in the assembly manual in section 8 picture A2. Those may not be the same pages for all manuals though. terry

[John H.]

Re: 68 bb exhaust part numbers and questions??

Terry -

The pipes shown in UPC 8 are those for base-engine manual-transmission cars; the pipes for options (big-block, Powerglide, etc.) aren't illustrated in the A.I.M, but they're different. As Dick noted, BB front pipes are unique for both sides, and a BB Powerglide introduces another unique LH front pipe, contoured to clear the wider transmission case.

[Terry F.]

Re: 68 bb exhaust part numbers and questions??

I started searching for some. Need to know what I am searching for. I won't tell you what happened to my originals I didn't realize they were original untill too late..... They are in Corvette heaven now..

Terry

[Dick W.]

Re: 68 bb exhaust part numbers and questions??

I will look at my old (69) parts book this evening and get you the GM numbers

[Terry F.]

Re: 68 bb exhaust part numbers and questions??

That would be great. If you don't get to it right away that is ok. Sometimes it is hard to get around to things. Weather is too nice. Terry

[Dick W.]

Re: 68 bb exhaust part numbers and questions??

I ain't gittin' to enjoy it. Printing name badges, windshield cars, etc fer the Lowe's Regional. Thankfully Sunday NEXT week is comin'. Seriously ya right, the weather is beautiful. 80's next week. I am above the ground, gonna be with a bunch of my friends for 3 days next week, good cars, what else could you ask for

[Terry F.]

Re: 68 bb exhaust part numbers and questions??

Sounds great! My little girl and I are cleaning up the yard from winter. Fun hanging out together. I take a break once in a while. Terry

[William Holder]

Re: 68 bb exhaust part numbers and questions??

Hello Terry
Look in the back of the AIM At the options and it should list the big block and show the manifolds and Pipes. I am not at home right now so I can't look but whats different from base should be listed in tose pages. ALso IF Dick looks this up make sure they show Part numbers for 68 only as they are different 68 are 2.5 inch all the way and 69 up start out 2.5 inch and neck down to 2.0 or 2.25. IF you can't find it in the AIM let me know and Ill look it up this weekend.
Bill

[Terry F.]

Re: 68 bb exhaust part numbers and questions??

This is a toughy, I looked and can't seem to find it anywhere. I looked in 4 speed section. No luck! Thanks for the reply. Terry

[Wayne M.]

Here's the exhaust system table for 1968

... and as you and others have mentioned, there is a substantial difference between 1968 and 1969. Exhaust component selection was so complex that the 1969 P&A30B created a table for '68 and '69. In this 1970 catalog page, they expanded that to include a separate table for almost every year '65, '66 & 67, etc.

Hope this helps

[William Holder]

Re: 68 bb exhaust part numbers and questions??

Hello Terry,
Yes you are right I got home and looked and it is listed on the sheet of unlisted items and says to see the parts list. So I am sorry that I steered you wrong. Good luck finding the right pipes.
Bill

[Terry F.]

Re: 68 bb exhaust part numbers and questions??

No problem! Hey, I appreciate even a little encouragement I will try to find some. I didn't think mine were original when I initially purchased the car years ago. They were very heavy duty. I SAWED THEM IN HALF AND tossed THEM AWAY I kick myself about that one all the time. I new nothing about the car back then. Oh well. Win some and loose some. Terry