Nothing too exciting...friend of mine has an 80's G body and wants more than the 17-18 gallons that they hold.
I think there's room to get a B body sedan fuel tank in there, but if someone had some measurements, it might help sway the decision one way or another. B body tank has the in-tank fuel pump, baffling, etc that's necessary for the fuel injection on this car, so from that standpoint it becomes "bolt in" and readily available service parts if necessary.
Oh, I understand now.
I am thinking of doing something custom because the access hole in our B-body tank is too small for the fuel pump and float gauge I want to run. Nevermind
Now 'Follow'ing. My son's '88 Monte SS has a leaker that has trained us to fill it ~5 gallons from 'Full'. Or avoid sharp turns until it is. I'd throw a junkyard run at it if that makes a cheap fix while also adding capacity and the improved design.
In some poking around I found the last gen B-'s tank quite pricey at ~$460, but this also popped up as a MUCH cheaper alternate. It does not show capacity, but it does provide dimensions ['85-'89 Caprice application]:
Find many great new & used options and get the best deals for For 1985-1989 Chevrolet Caprice Fuel Tank Spectra 47577KX 1986 1987 1988 at the best online prices at eBay! Free shipping for many products!
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Even though his is strictly a garage queen, you've prompted me to move ahead with replacing his leaker with 'something' at least. Unless you already have the the dims. on the G-body tank to compare with those posted above, I'll measure his to see if it's a viable option. Oorrr, just get the Dorman $200 oem solution. BTW, I'm sure the son thanks you for 'bringing this up' with his dad.
i have a boxy fuel tank out i can measure, it's a steel tank and holds 25 gal vs plastic 23 gal. i think frame rails are too narrow to fit the tank in a g-body myself.
There's ~38" between the frame and the spare tire well on a G body - subject to body/frame centering variances
The tank on my wagon measures ~39" wide, but the wagon is wider than the sedan. The G Body fuel tank has the filler neck offset to the right of the tank since the tank is offset to the left in the frame/body. There woudl need to be some re-routing of the filler neck, but that shouldn't be too bad to do.
I'm surprised that it's wider than the wagon tank!
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