Edelbrock BB Chevy Performer RPM 454-R Cylinder Head w/ Valves Quick Release Fitttings You can also gain consistency

You can also gain consistency - engines that are jetted properly will run more consistently on the track

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Help keep fine dirt and debris out of your helmet and suit without interfering with Head & Neck Restraints

no leak seal over the life of the filter

Edelbrock BB Chevy Performer RPM 454-R Cylinder Head w/ Valves Quick Release Fitttings You can also gain consistencyCylinder Head Specifications: Combustion chamber volume: 110cc 118cc; Intake runner volume: 290cc; Exhaust runner volume: 110cc; Intake valve diameter: 2. 25"; Exhaust valve diameter: 1. 89"; Valve stem; diameter: 11 32"; Valve guides: Manganese bronze; Deck thickness: 9 16"; Valve spring diameter: Hydraulic Roller (#61555); Valve spring maximum lift: N A; Rocker stud: 7 16"; Guideplate: Hardened steel; Pushrod diameter: 3 8"; Valve angle: 26 ;