I finally got around to wieghing the two rads..They are just like they are in the pics..The aluminium has the rad hoses attached and the stock rad has the shroud so the extra wieght should be pretty even..The aluminium wieghed in at 16lbs and the stock was very close to 20lbs..

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1968 mustang..408 windsor.Vic jr heads and intake.Pro Systems 950HP holley, 1 3/4 hooker super comps,Custom CI solid roller camshaft,Probe shaft rockers, 4 speed with 4:11 detroit locker.