This is a very nice Chevy Motor Mount kit. This universal kit fits both small and big block engines.It features beautiful STAINLESS brackets, polyurethane bushings, and 1/4 steel weld on frame brackets. When mounted to the block, the eye to eye measurement is apporximately 20 3/8 They are a nice finishing touch and defintely a good upgrade over worn out, rusted mounts. Instructions are not included, experienced or professional installation is recommended. 20 3/8 eye to eye measurement when bolted to a Chevy engine. Each mount is 3.31 long to center of the bushing. Three engine mount holes are 3.50 apart, center to center. Frame brackets are 3 7/8 long. Full name, correct telephone number and detailed Physical Address (home or office address) but not PO Box/APO/FPO address are necessary. We pursuit 100% customers satisfaction guarantee. The service for the customers is the most important to us. So glad to have more choice to serve you.