Manley Extreme Duty Series performance steel valves are a great choice for supercharged, alcohol-burning, or high-revving engines. These engines generate a lot of heat and require special valves that can handle that kind of punishment. All valves are made from the best stainless steel available, with chrome stems and hardened valve tips. Extreme Duty Series valves are swirl-polished and fully machined and available with either undercut heads or straight stems.

More From This Category

Cragar Wheel, Street Pro, Steel, Chrome, 17 in. x 9 in, 5 x 4.5/4.75 in. Bolt Circle, 4.5 in. Backspace, Each

Cragar Wheel, Street Pro, Steel, Chrome, 17 in. x 9 in, 5 x 4.5/4.75 in. Bolt Circle, 4.5 in. Backspace, Each

$770.19

Oil Pump

Oil Pump

$235.20

Cast Piston

Cast Piston

$72.09

Connecting Rod Bearing Set

Connecting Rod Bearing Set

$36.29

DBA Front Street Series En-Shield Brake Rotor, 332mm, For Ford Everest UA 15, Kit

DBA Front Street Series En-Shield Brake Rotor, 332mm, For Ford Everest UA 15, Kit

$210.10

DBA Rear Street Series En-Shield Brake Rotor, 259.4mm, For Honda Accord CK 2.3L 12/97-05/03, Kit

DBA Rear Street Series En-Shield Brake Rotor, 259.4mm, For Honda Accord CK 2.3L 12/97-05/03, Kit

$105.80