QR Code Link to This Post Not for the faint of heart. POWERFUL. The LT-Z 400 released by Suzuki in 2003 was not the first Sport 4-stroke ATV released by the firm, but it is considered by most to be one of the best. The water-cooled 398cc LT-Z 400 was originally designed to compete with the sub 449cc class sport ATV's like the Honda 400EX. The LT-Z 400 preformed so well it soon found itself on the starting grid lined up next to all the factory prepared 450cc race quads.Moved onto other interests. Your gain! Call or text 7five7-six42-Zero577Honda, Yamaha, Jeep, Auto parts, barter, bikes, farm, garden, general, garage sale, heavy equipment, household, materials, motorcycles, rv, camping, sporting, tools, motorcycle, atv, 4 wheeler, 4-wheeler, trailers, wanted, tires, wheels