This tank is over 20 feet long, the center section is straight, good place to shorten or lengthen. It bolts together..... I took it apart so now it could be hauled in a pickup. I had it at Pomona swap meet a few weeks ago and might have been able to sell but most of the guys I catted with about it did not have anything that would haul a 20 foot + tank. it is about 30 or 31 inches in diameter. I might do some trade with it??? could use a 383 chevy rotating kit??? or even a 350 chevy set of pistons +30 or +???