The LS1 stand is made with 1" x 2" x 14 gauge tubing. The mounting plate is made with 1/4" steel. The stand has 9 1/4" clearance w/ out casters to fit the deep oil pans. Mounting bolts are included. OPTIONAL Caster Kit WITH STAND: Casters are 3" x 1 1/4" inch wide making rolling easier. Swivel caster has double row swivel races. Each caster rated at 300lbs. Caster kits will fit all CE 2-piece stands. Fits LS1 Through LS7 and CT 525 CRATE. Made in the USA. $120.49 Including Caster Kit.800-468-2279. SBC Stand also available.