I would think they are steel drums. No frictions or steels. The billet Aluminum direct drum is the go to one. 34 element sprag. that's good. The forward drum in steel is fine. Direct clutch hub is steel. Says both have aluminum pistons which is good. Good prices.
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68 Firebird. IA2 block, 505 cu in, E-head, Solid roller 3650 weight. Reid TH400 4:11 gear. 29" slick.
Best so far 10.12@133 mph. 1.43 60 ft.
76 Trans am, TKX .81 o/d, 3.73 Moser rearend,
468 with KRE D-ports, Doug headers, 3" Exh.
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