This is an Engine Mount Made of Glass-Filled Nylon. This mount will fit the following engines, but is not limited to: ASP .40 ENYA .40 FOX .36-.40 HP .21-.25 IRVINE .40 K+B .40 MAGNUM .40 ROYAL .40 SUPERTIGRE .40-.46 THUNDERTIGER .40-.46 FEATURES: The Mounting Holes are Identical to Kraft Mounts. Glass-Filled Mounts Have Strength and Stability. INCLUDES: One Engine Mount Four #4 x 58 Screws to Attach Engine to Mount REQUIRES: Mounting to a firewall. SPECS: Length: 2-1/4" (overall) Width: 1-1/4" srd 10/26/98 ir/jl