Holley LS engine mount, Total Height Installed.

[Toddoky]

I don't have a discrete reference measurement that I can provide you with in terms of the distance from the firewall as I never measured it during the development process. I can however tell you that the Hooker Blackheart mounts do not cram the engine up against the firewall like the use of common 1" set-back swap plates do, and also to not move the engine forward by a questionable amount like some other mounting brackets I've seen that do. As a reference, the mounting positioned obtained allows the use of the stock A/C evaporator case for those wanting to use it, and also positions the shifter of a T56 Magnum transmission up through the stock shifter cut out in the tunnel sheet metal. The appearance of this positioning looks very natural and factory-like...here's an image of an LS installed in a 69 Camaro using the Hooker Blackheart engine and transmission mounting components for you to get a look at.