Ferrea 6000 Series Competition 2.020" Intake Valves (Set of 8) - SB Chevy - 11/32" Stem Diameter - 5.160" Length - 11/32" Stem Diameter - 5.160" Length Spark Plug Application specific (Non universal)Vehicle Applications:

Application specific (Non universal)Vehicle Applications: 2002-2009 Chevrolet Trailblazer/Envoy -2" to +1"Vehicle Applications: 2002-2009 Chevrolet Trailblazer/Envoy -2" to +1"

50K Between Maintenance Intervals Depending on Driving Conditions

355 in Thick

Internal check valve

1976-1980 Chevrolet K20

Ferrea 6000 Series Competition 2.020" Intake Valves (Set of 8) - SB Chevy - 11/32" Stem Diameter - 5.160" Length - 11/32" Stem Diameter - 5.160" Length Spark Plug Application specific (Non universal)Vehicle Applications:The 6000 Series Competition Valves are designed to provide excellent reliability in an environment of high spring pressures and roller cams, at a budget price. They have higher fatigue resistance and tensile strengths than our competitor's best offerings. These valves can be used in Drag and Oval Track racing applications. To manufacture the valves, we use our exclusive two step slow forging process using EV8 stainelss steel on both intake and exhaust