Engine frame bracket- Which one?
Engine frame bracket- Which one? I'm swapping a LS1 into a 69 firebird. The engine frame brackets are totaly different than the camaro or nova brackets. Any of you guy know which bracket to use on the sub-frame?
Thanks,
Sam
Thanks,
Sam
Everything you never wanted to know about 1st gen Camaro frame brackets:
http://www.pozziracing.com/camaro_engine.htm
Either the low perf or high perf smallblock frame brackets will work as long as you have the correct mounts to match them. The low perf brackets use the "short and wide" early GM mounts, and the high perf brackets use the "tall and narrow" early GM mounts. My understanding is that the high perf mounts raise the engine about half an inch so that an 8inch harmonic balancer will clear the sway bar.
I'm using the low perf brackets on my '68, with ATS-style mount plates and Energy Suspension short&wide mounts. I had to do some clearancing on one of the ES mount since ATS uses them upside down. Apparently some people have to trim one mount and some don't, and I haven't heard of a definitive reason why.
http://www.pozziracing.com/camaro_engine.htm
Either the low perf or high perf smallblock frame brackets will work as long as you have the correct mounts to match them. The low perf brackets use the "short and wide" early GM mounts, and the high perf brackets use the "tall and narrow" early GM mounts. My understanding is that the high perf mounts raise the engine about half an inch so that an 8inch harmonic balancer will clear the sway bar.
I'm using the low perf brackets on my '68, with ATS-style mount plates and Energy Suspension short&wide mounts. I had to do some clearancing on one of the ES mount since ATS uses them upside down. Apparently some people have to trim one mount and some don't, and I haven't heard of a definitive reason why.
We used the S&P style mounts which are similiar, but different. They are very fancy, and nicely machined, but we will use steel mounts next time. We had a lot of trouble getting the pedastals to line up with the aluminum adapter plates, as they are so thick. I do believe that the S&P style plates are meant to be used with the opposite pedastal than the one we have. Not exactly sure which we have, but my best guess was that they are the short and wides. Never did figure out for certain though. THere are a lot of people selling steel plates now, or, you can just make them. S&P and other have templates on their websites.
