Auto Part Number 60459 From Edelbrock

Brand: Edelbrock, Mfr Part#: 60459

Lowest Price $970.99

Product Details

Performer RPM 454-Oval Ports-Complete AssemblyPerformer RPM 454-O These oval port heads will support over 540 hp with 9.5:1 compression when used as part of the Total Power Package Unique oval intake port shape produces flow similar to rectangular ports, but the smaller port size provides excellent seat-of-the-pants performance and crisp throttle response Semi-open ...more

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Full Details for Edelbrock 60459

Performer RPM 454-Oval Ports-Complete AssemblyPerformer RPM 454-O These oval port heads will support over 540 hp with 9.5:1 compression when used as part of the Total Power Package Unique oval intake port shape produces flow similar to rectangular ports, but the smaller port size provides excellent seat-of-the-pants performance and crisp throttle response Semi-open chamber design maximizes efficiency with streetable compression ratios Smaller-than-stock 1132" valve stems promote excellent flow and lighter valve weight Cylinder Head Specifications Combustion chamber volume 110cc Intake runner volume 290cc Exhaust runner volume 110cc Intake valve diameter 2.19" Exhaust valve diameter 1.88" Valve stem diameter 1132" Valve guides Manganese bronze Deck thickness 916" Valve spring diameter 1.55" Valve spring maximum lift .700" Rocker stud 716" Guideplate Hardened steel Pushrod diameter 38" Valve angle 26 degrees Exhaust port location Stock Spark plug fitment 14mm x 34 reach, gasket seat Made In USA Technical Notes: Match with Edelbrock head gasket sets. Bare heads will have valve guides and seats installed, but will require final sizing and a valve job to match the valves you will be using. Recommended spark plugs 14mm x 34" reach with flat gasket seat (Champion RC12YC). Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench 28" H2O 60449 | 60459 Valve Lift .100" .200" .300" .400" .500" .600" .700" Intake 74 143 207 250 284 309 - Exhaust 71 128 153 178 200 218 -