Chevy BBC 454 Aluminum Valve Covers [Silver] Speedmaster's ignition coils provide the

Speedmaster's ignition coils provide the performance needed to help keep vehicles running the way that they were designed

and Grande Mustangs

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

Speedmaster H-beam connecting rods are one of the strongest connecting rods available

If your standard Bowtie block could handle 1500+ HP it would be Speedmaster's H1 engine block

Chevy BBC 454 Aluminum Valve Covers [Silver] Speedmaster's ignition coils provide theCover 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.