1980 Z28 LQ9/4L80e/ICT billet engine mount adapters :
I did a ton of research before buying these, they fit perfect. No messing around, no hammering brand new headers to make them fit. Everything tucks up neatly on the underside I have zero worries of catching or scraping with these and they even fit with the 4l80e without shaving the ears off the transmission. You can't ask for a better fit. I wouldn't recommend any other headers for a late second generation F-body swap.
I took these out of the box and installed them within 10 minutes. No banging tubes for clearance, they fit perfect in a 77 trans am ls swap with trans dapt mounts. Great price and the appear to be really good quality. 10 out of 10
I picked up a set of these for putting a LS in my 1973 Camaro and they fit great! I used UMI motor mounts, and I think because of the orientation of the mounts the passenger side collector is a little close to the floor of the car, so I can't put an O2 sensor on that side, but that's ok! With the Holley Terminator harness, I only need to use 1 sensor and the bung is perfectly placed on the drivers side for everything to clear. Plenty of room around the starter too!
First set of headers I've bought that REALLY fit without any massaging and the price is more than fair
Put them on my 1981 camaro ls swap, they fit perfectly, and didn’t touch anything. It only took my like 15-20 minutes, highly recommended.