Nitrous Oxide 0.500 Polished Billet Square Bore Perimeter Injection Spacer Plate Speedmaster aluminum LS valve covers

Speedmaster aluminum LS valve covers will give your LS series engines a totally new look

Engineered for reliability and smooth operation

These 7/16 in

These Speedmaster rear main seal adapter kits are designed to install an early 2-piece style crankshaft into a late model

Nitrous Oxide 0.500 Polished Billet Square Bore Perimeter Injection Spacer Plate Speedmaster aluminum LS valve coversThese Speedmaster perimeter plates employ multiple injection points to ensure that a perfectly atomized, cylinder to cylinder balanced blend of fuel and nitrous reaches your engine. The technology eliminates nitrous delivery imbalance, the major drawback with spray bar type nitrous systems. The plates are manufactured from aluminum and are anodized for protection.