I used all kinds, in Texas. This one does the job on a sbc dirt tracker with a muddy rad, and my 440 3 core stock rad 65 Satellite. It,s cheap $ and weighs nothing and won,t cut you. A red shop rag will stick to my grille at 700rpms with a A/C condenser, B/M trans cooler and no shrould. I have 2" clearance and use big flat washers on the bolts http://www.summitracing.com/search/brand...s/?autoview=SKU