Long Range Fuel Tank...

yes it bolts straight in but u need the straps 4 the long range tank and it will show out the rear

 

As poverty said ,same as the VQ's, it will bolt straight in.....

 

Caution.

There is a real gotcha relating to the fitting of long range fuel tanks.

As stated above, it is necessary to get the tank and the straps that fit it to the car. The long range tank also has a plastic stone guard as the tank does sit lower and is thus more exposed to stone damage.

However, it is not just as simple as nuying a tank and installing it.

Firstly, there are big differences between the tank/straps between IRS and live axle rear ends. I learned this the hard way, and have a VS long range tank in the shed that does not fit my VSII.

As a minimum, make sure you get an IRS or live axle tank as a minimum. Even then, there are so many different part nunbers for the VS long range fuel tank that I could not guarantee that it will fit.

 

stock exec has a 59 from what ive gathered.

try www.redbook.com.au ( i think ) should give you the stats there

 

V8 drop tanks fit straight in cos the cars were designed to hold them aswell. u can even use ur regular V6 fuel pump in a V8 tank to run ur V6 and yes the V8 tanks were 80L

 

My vr has a 80 litre tank that I installed myself and it works ok.
Had a few problems with straps as the car I got it off was irs (as mentioned in Fekasons post above) but I just had to modify the lefthand one so the front mount had a bolt hole instead of the tongue but after I fixed that up , it all bolted up.
There is no rubber between the tank and strap like in the 65 litre tank...just that bitumeous tape that I got from a hardware store. The rubber insulation that sits between the tank and rails is a bit different but you can work it out by this picture http://forums.justcommodores.com.au/attachment.php?attachmentid=12775&d=1140645306
You have to change your filler neck to the 80 litre one and the vent hoses are set up a little different again see picture above and you have that plastic protector to stop stones hitting the tank.Check under the protector as mine has some surface rust on the tank that Ihad to clean up where water and stones had worn off the plating on the corner under the protector.
It sits quite low but if you are conscious of it when going over things you drive it to suit.The pump and sender came with the tank and it only uses one pump...no external one like in the earlier models.

 

my car has a long range tank and is runing on FE2 sus sits a bit lower than the standard.
i get 80 ltrs in mine and bieng a 6cyl i can drive to melbourne on a single tank.
also if your swapping tanks dont forget to flick the switch on the back of your instrument cluster for the fuel gauge.

 

Heres mine at a few angles ...it sits 150 mm at its lowest point to the ground.
It has fe2 rear suspension