Chevy SBC 350 Aluminum Valve Covers Tall w/Hole [Polished] The Speedmaster MidRise Air design

The Speedmaster MidRise Air design features the identical plenum and runner design as the normal MidRise

Speedmaster small block 427 c

heat-treated to the highest Rockwell hardness available

or better known to mechanics as the IAC

Speedmaster high-volume water pumps have a ribbed aluminum housing and a heavy duty ball/roller bearing assembly

Chevy SBC 350 Aluminum Valve Covers Tall w/Hole [Polished] The Speedmaster MidRise Air designCover your valvetrain with a set of Speedmaster cast aluminum valve covers. Their strong die cast aluminum design ensures an excellent gasket seal and dissipates heat better than many other covers. They come in tall and short models, and most include bolt in baffles that can be replaced.