The Buick Nailhead has had many aftermarket intake manifolds available for decades, but they all had one thing in common: they required multiple carburetors, dual 4 barrel, tri-power, etc. The only option for a single 4 barrel carburetor has been to find a factory iron intake manifold, until now! TA Performance has developed a replacement aluminum intake manifold for the 401-425 Nailhead engines. It features dual coil mounts (to work with both styles that were used), blockable exhaust heat crossovers (the intake includes plugs that can be installed), and is ~0.5" taller than stock to improve the design of the bottom plenum ports. Weighs only 13.5 lbs!
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