LS engine mounts to keep back of engine the same as Gen1 sbc

[waynieZ]

Hi I 'm doing a 69 Camaro Project FNQUIK. The engine I have ready to go in is a Bill Mitchell 454 sbc ,but I'm thinking putting it up forsale and going with an LS2 in stead. I searched old threads but didn't find what I need . I have a Keisler Viper T56 perfect fit kit for my car it has hydraulic clutch setup. I would like to keep the trans in the same place if at all possible. Does any one make engine mounts that keep the back of the engine the same place as a Gen 1 sbc ? If so which headers work with them?
Any help will be appreciated Thanks Wayne