Diagram

[JTB2000]

I am attempting to get my 1980 vette with an L48 back to somewhere near factory specs. I have installed a "correct" carburetor and the engine runs pretty smooth most of the time. However the previous owner had an aftermarket breather installed and most of the vacuum hoses were routed incorrectly---I think. Does anyone know where I can get a good descriptive vacuum hose "map"?!? I also need to find out the GM part number for the stock intake manifold for the '80 Corvette L48.

Thanks

 

[SwaveDave]

You need the GM Assembly Manual for your year. That will have diagrams galore in it. Ive used my 1970 Assembly Manual quite a bit. Its valueable to have.

The Assembly Manual will also have the stock number for your correct manifold, or, you could call a Chevy dealers parts dept and they could look it up for you.

Dave

 

[billybob]

http://www.docrebuild.com/dr-r-web/DROOPY2.HTML

http://www.docrebuild.com/dr-r-web/3750373a.HTML

Bill

 

[rpounds]

;stupid

I run a wireless network on my notebook computer, so I took it out to the garage with me with Doc Rebuild on the screen. That way, I could look at the diagram while I routed the hoses.

Ron

 

[JTB2000]

Thanks!!

I had not thought about the assembly manual as resource for this info. I have checked out Doc Reuilds but thought the layout was vague. The TVS are just "floating" in air so I am not sure where they are or SHOULD be located. I am not sure the intake on this motor is correct and as such I am not sure the neccessary ports for the vacuum switches are present. This is why I am wanting to find out about the correct intake.

Thanks again!

 

[billybob]

I ordered a complete hose kit for the 75 and misc parts for the 71, diagrams are much better than on the site, but equally as accurate.

Bill

 

[JTB2000]

I have been able to locate a VERY good diagram for the emission hose routing in my assembly manual.

Thanks SwaveDave!!

But the intake is definitely not correct!!
I have contacted a Chevy dealer he gave a casting number of 14057054 but this number does not match anywhere. I am not able to find any reference to the intake number in the assembly manual.

Any additional help will be bery appreciated!!

 

[JohnZ]

You won't find any reference to the intake manifold in the Assembly Manual, as it was installed at the engine plant. The correct intake for your car is casting #14014432; don't know what the actual GM part number is, but your dealer parts guy should be able to cross-reference it from the casting number.

 

[king80vette]

I got my manifold from ebay. Paid $50.00 then took it to my engine guy and he cleaned it up and resurfaced it. Then checked everything over cost $90.00.
Steve