I ended up going with a rad for a 91' Chevy Camaro Z28 5.7L TPI. Modine 3-core rad with lifetime warranty, aluminum core with dense fin count, approximately 4" wider core than the stock unit, definately a nice looking unit. Have the Ramchargers fan on order as well, hope this combination is good enough to meet the cooling demands with my new FMIC (made from two stock '87 intercoolers welded together, AC condenser is out, I think I'm on the rigth track here...).