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Small Block Chrysler Performer RPM 63cc Aluminum Cylinder Heads
- 1967-1991 Small Block Chrysler 318-360ci
- Valve Springs for Hydraulic Flat Tappet
- Port Volume: 171cc/77cc
- Valve Size: 2.02"/1.60"
- 63cc Combustion Chambers
- Max Lift: .575"
- Polished Finish
- Assembled, Sold Individually
Outstanding features include phosphor-bronze valve guides, interlocking, ductile iron valve seats, and premium one-piece, high-flow stainless steel intake and exhaust valves. Heat-treated and machined steel retainers and valve locks along with heavy duty valve springs are good for .575' lift cams. For compatibility with aftermarket parts, these powerful heads use the stock location for intake and exhaust bolt holes and flanges, spark plugs, and valve cover rails. The special valvetrain in the 1970 340 T/A is not compatible with these cylinder heads.
Tech Tip
To gain more spark plug clearance, Edelbrock recommends using Champion RC Series plugs, such as the RC12YC (P/N 192-49776). They are 0.230' shorter than conventional spark plugs and have a 5/8' hex for easier access.Combustion Chamber Volume: 63cc Intake Runner Volume: 171cc Exhaust Runner Volume: 77cc Intake Valve Diameter: 2.02' Exhaust Valve Diameter: 1.60' Valve Stem Diameter: 11/32' Valve Guides: Manganese Bronze Deck Thickness: 5/8' Valve Spring Diameter: 1.46' Valve Spring Maximum Lift: 0.575' Rocker Stud: N/A Guideplate: Hardened Steel Pushrod Diameter: 5/16' Valve Angle: 18° Exhaust Port Location: Stock Spark Plug Fitment: 14mm x 3/4' Reach,
Gasket SeatValve Lift Intake Exhaust .100' 69 64 .200' 129 108 .300' 188 142 .400' 232 171 .500' 249 183 .600' 251 190 .700' N/A N/A Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28' H2O
Part TypeCylinder Head
BrandEDELBROCK
Package Height8.18
Package Width10.43
Package Length24.75
Weight0.51 PG
Retainers IncludedYes
Guideplates IncludedNo
Oiling StyleThrough head
Valve Seats MachinedYes
Heat CrossoverNo
Number Of Springs Per ValveSingle
Damper Spring IncludedYes
Cylinder Head TypeStandard
Valve Stem Seals IncludedYes
Intake Valve Diameter2.02 in (51.308 mm)
Valve Guide MaterialManganese bronze
Outside Diameter Of Outer Spring1.46 in (37.1 mm)
Steam Holes DrilledNo
Rocker Arm Studs IncludedNo
Retainer MaterialSteel
Cnc-Machined Combustion ChamberNo
Exhaust Valve Diameter1.6 in (40.64 mm)
Part CategoryPerformance Parts
Cylinder Head MaterialAluminum
Intake Port LocationStandard
EmissionNon-Emissions
Exhaust Valves IncludedYes
Locks IncludedYes
Engine Make/SizeMopar 318-360
Lock Style7 degree
Rocker Arms IncludedNo
Rocker Arm Nuts IncludedNo
Cylinder Head FinishPolished
Intake Valve Angle18
Maximum Valve Lift0.575 in (14.605 mm)
Valve Seat MaterialDuctile iron
FinishPolished
Valve Springs IncludedYes
UsageStreet/Performance
Valve Seat Machine Style3-angle
Valve Guides IncludedYes
Cnc-Machined Intake RunnerNo
Intake Valves IncludedYes
QuantitySold individually
Accessory Bolt Holes DrilledYes
Exhaust Runner Volume (Cc)77
Exhaust Port LocationStandard
TypeComplete
Combustion Chamber Volume (Cc)63
Machined For O-RingNo
PreparationBolt On (Not Required)
Cylinder Head StyleAssembled
Valve Cover Mounting StylePerimeter bolt
Valve Stem Seal StylePositive stop
Intake Runner Volume (Cc)171
Cnc-Machined Exhaust RunnerNo
Vendor Part Number607719
Package Qty1
Package TypeEA
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