Sorry! I now this thread is MEGA old, but I was unsatisfied with the answers of use the intake and exhaust manifold. This thread shows up via google search. I felt bumping this thread was worth it for people trying to read up what to do. Here are a few options:
Mazworx makes a really affordable option from steel.
https://www.mazworx.com/store/p/194-Mazworx-SR20-Engine-Hoist-Brackets.aspx
$15! Not bad. They're steel and I think they'd work great.
https://frsport.com/images/detailed_images/31788_Mazworx_MAZ%
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SS works
https://ssworxs.com/shop/ssworx-parts-and-accessories/engine-lift-hooks/sr20det-engine-lift-hooks/ssworxs-nissan-sr20-engine-lift-hook-mounts/
$79 which is pretty pricey. Also made in steel. These appear to be lazer or plasma cut.
https://i0.wp.com/ssworxs.com/wp-content/uploads/2015/06/Untitled-13.jpg?w=400&ssl=1
Personally I didn't love either option, as I wanted something aesthetically pleasing enough to just leave in the engine bay. Removing the rear hook in the car is possible, just difficult.
https://www.theexcitingspirit.com/tes-parts/sr20-lift-hooks
$45 waterjet aluminum so no need for paint and they won't rust etc. Confirmed them on S13 and S15. As well as the ability to install them with the engine in the car. I'm not 100% either of the other options can be due to the limited space in the back of the head while the engine is installed.
https://images.squarespace-cdn.com/content/v1/5e35e8e3deb28a1f33bdd17c/1590063668452-9M8G9SO285GE691PBWSO/ke17ZwdGBToddI8pDm48kP8N5KLxKqzW7xoy-OuA-ht7gQa3H78H3Y0txjaiv_0fDoOvxcdMmMKkDsyUqMSsMWxHk72 5yiiHCCLfrh8O1z5QPOohDIaIeljMHgDF5CVlOqpeNLcJ80NK6 5_fV7S1UYAswtmfg2fJ6dgr7UAPeBhZtCnBfXt7-uVnY3X5mdIxtfYk0dVZayboTAeqjnjomg/SR20+Lift+Hook.jpg?format=1500w