Oldsmobile Quadrajet main fuel line

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kustomkyle

G-Body Guru
Apr 14, 2008
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Main fuel line, fuel pump to carburetor.

Does anyone reproduce this as a pre-bent line? I've seen some made by "The Right Stuff", but they appear to be all Chevy, which I believe were all side feed (Oldsmobile being front/center feed).

Also, could this be made from a standard inverted flare brake line? Appears to be 5/16 line, but I have no idea what style the ends are.

This is for a 1986 Olds 307.
 
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There does appear to be some made for Buick/Olds/Pontiac applications, but it shows only to be applicable to the 1977 model year (?). What would be the difference between 1977 and 1986 engines? Basically it would be a 403 vs. roller 307.

One of the part#'s I'm coming up with is APC7705. There's also a few that are a 2 line kit (?).

Hopefully someone can shed some light on this.
 
Check Classic Tube. I bet they reproduce it in both regular steel and stainless.
 
Check Classic Tube. I bet they reproduce it in both regular steel and stainless.

Yep, pretty sure they don't, these are the guys on Summit I was hoping would have so I could get it in a couple days. All they had (that I've found so far) is for 1977 and nothing newer for the B.O.P. engines. Tried 1978 and newer, but Classic Tube wasn't even a search option. Just fuel line and brake line kits for the chassis.

In some older posts I've since found, there apparently was even a different one for the H/O Cutlasses in 1983-1984 (!?), why I have no idea. There physically wasn't anything different on the outside of the engine, and you can't really go any bigger than the 3/8" a VIN Y line would have been anyway. But, there seemed to be a different bend configuration for some unknown reason.

Looks like Inline Tube is the company that makes them for the later models, or did anyway. The VIN Y/late VIN 9 part number I haven't found anywhere for sale at the moment. Inline tube has a website, but they only seem to have a paper catalog that you can order from (?). Still trying to figure that all out. Haven't found any leftover N.O.S. GM ones either. You wouldn't think a part, especially like this, would be that hard of an item to find, considering the engine was primarily in the best selling vehicles in the country for over a decade. Wow.

I've also since attempted to make one out of a 3/8"x20" (it is, in fact 3/8" inverted flare brake line), but was unsuccessful. I made half of the bends coming out of the fuel pump area, and it looked fairly decent. However, there's not even an inch of line coming out of the fuel pump before you need a 90-degree bend. I was able to get about 1-1/8" into the tubing bender and that was pushing it, but that 1/8" is the difference needed to clear the A/C compressor bracketry. The factory fuel line also seems to be about 17" total in length, so I would need to cut and re-flare one end. Maybe someone with better tools could do it, but right now it seems pretty impossible.

All this when all I was trying to do was change a fuel filter.....
 
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Well, after trying to decipher Classic Tube's cataloging, I think the part# I need might be CUC1008-OE or CUC1008-SS for stainless.

Had to download a PDF of their paper catalog (what us with these tubing companies?) in order to see what they have listed. Of course the latest year they have is for a 1985, which technically isn't the same engine (internally), but externally should be the same. Hopefully.

Of course the part is $20.00, while the shipping is $16.54. Summit seems to have every other conceivable fuel pump-to-carburetor line for any engine, just so long as it isn't Oldsmobile powered. Had they, the part might have been $1-$2 more but almost $10 less for shipping.

Still trying Inline Tube, however their cataloging/ordering system is even more archaic/chaotic than Classic Tubes'. So far all I've got is a part#, and that wasn't even found through Inline themselves. They make you fill out a form with the part# and price (which I have yet to find either through them!), then they'll email you back so you can order (!). Might as well not even bother having a website.
 
I can check Monday & get a part number from Classic Tube if the part is available. They can also duplicate from your pattern the line you need if it is not in stock.
1986 Oldsmobile 307 with air, fuel pump to carb is what you are looking for correct?


Bob S.
 
I can check Monday & get a part number from Classic Tube if the part is available. They can also duplicate from your pattern the line you need if it is not in stock.
1986 Oldsmobile 307 with air, fuel pump to carb is what you are looking for correct?


Bob S.

Yes, it's actually a 1986 Buick Regal Limited, but basically in the aftermarket part world you have to imagine it's just a Cutlass with the 307. Usually the problem with calling some of these places is that you'll end up with more questions than answers. Not that the people at Classic Tube are that way (that I know of). Thanks for the offer.

It's like going to an auto parts store and getting wires for a 307 Olds. You end up pulling them out of the box wondering why they're all either too long or too short, and there's 6 90-degree booted wires only 2 straight. Guess what? They gave you ones for a 305 Chevy! This actually happened. Guessing the store's cataloging is Canadian based.

I have ordered the CUC1008-OE, hopefully they're as quick as Summit (but probably not). I was going to get the stainless, but with shipping that would be over $40 for a $5 3/8" brake line with some bends in it.

"Does not fit Cutlass Supreme!"
 
I hate to tell you they are nowhere near as fast as Summit. They are pretty slow by today's standards but my experience has been the parts are good. What else can you do other than go try to find one in a yard?
 
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