For pre-Magnum engines with 59 deg. tappet bore
Cast aluminum heads for the earlier style V8 engines called pre-Magnum engines fit the 67-91 318s, 68-73 340s, 71-92 360s and all the Commando crate engines built up to 93.
100% interchangeable with cast iron 340/360 heads Higher air flow and performance over the stock cast iron 340/360 heads Uses 5-bolt production ''A'' engine valve cover design Uses 3/8'' valve stems Intake manifold attachments are standard ''A'' engine Uses production shaft-mounted (not W2) valve gear - oils through the head Machined for 2.02'' intake and 1.60'' exhaust valves Designed with smaller chamber than Cast Iron open chamber 340/360 heads Uses single production exhaust flange pattern No heat crossover Uses stock 340/360 intake manifolds 177cc Intake runner 60cc combustion chamber
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