4th gen gas tank in 3rd gen?
#1
TECH Fanatic
Thread Starter
iTrader: (2)
Join Date: Jan 2004
Location: Ewing, NJ
Posts: 1,222
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
i was wondering if anyone has swapped the 4th gen plastic gas tank into a 3rd gen?
any mounting changes or fabrication needed? stock strap positions used?
thanks
tim
any mounting changes or fabrication needed? stock strap positions used?
thanks
tim
#2
Deranged Rat Fink
iTrader: (3)
Join Date: Jun 2004
Location: Right here at my laptop, DUH!
Posts: 4,495
Likes: 0
Received 1 Like
on
1 Post
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
basically the same shape here's two pics the first is a thirdgen to 4th gen tank comparision pic ,and the second is the plastic fourth gen tank. i'm doing the LS1 /T56 swap in an '89 RS convertible and i'm getting close to having all the parts i need . thirdgen.org is another great source of info for this swap also.sorry the first pic is so small. the 4th gen tank will fit with the 3rd gen straps but you will have to cut the rubber part of the filler neck to get it to fit. it will stick out out of the body if you don't .the 4th gen plastic tank also weighs less (18 lbs. , i think ) than the 3rd gen tank as a nice bonus.