[ WIDE COMPATIBILITY ] -- Could be used on all years of Duramax, SBC, BBC, LS and LT series engines includes: LS1 LS2 LS3 LS6 LS7 LM7 L33 LFA LSA LS9 LH6 LQ4 LQ9 L76 L92 L99 L96 LC9 LY6 LMG LH8 4.8 5.0 5.3 5.7 6.0 6.2 7.0 L 283 302 305 327 350 383 400 427 454 6.6L. [ 1/2" THICK ALUMINUM ] -- Anti impact billet aluminum. Rust-Resistant Black Anodized Finish. Protects against corrosion. The reinforced 1/2" thick billet aluminum plate dramatically improves the stand's load-bearing capacity. By engaging all available bellhousing attachment points and facilitating lower engine positioning, it ensures maximum stability during operation. .