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Vehicle Info NeededEDELBROCKPART NUMBER: 350-60659
Performer Aluminum Cylinder Head for Small Block Chevy Bare
$58799
Ships on 09/17/2026
Lowest Price Guarantee1986-Earlier Small Block Chevy
- 1986-Earlier Small Block Chevy
- Port Volumes: 185cc/65cc
- 70cc Combustion Chamber
- Bare Head, Sold Individually
Combustion Chamber Volume: 64cc or 70cc Intake Runner Volume: 185cc Exhaust Runner Volume: 65cc 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: 3/8' Guideplate: Hardened Steel Pushrod Diameter: 5/16' Valve Angle: 23° Exhaust Port Location: Stock Spark Plug Fitment: 14mm x 3/4' Reach,
Gasket SeatValve Lift Intake Exhaust .100' 66 52 .200' 127 97 .300' 185 127 .400' 230 146 .500' 238 156 .600' 239 162 .700' N/A N/A Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28' H2O
Installation Notes: When using stock rockers on S/B Chevy Performer & Performer RPM heads, .100' longer than stock pushrods are required. Due to valve-to-cylinder bore interference, SB-Chevy heads may not be used on engines with less than 4' bore (262, 265, 283, 305, 307 c.i.d.) except with camshafts having less than .450' valve lift.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 a conventional spark plug and have a 5/8' hex for easier access.
Heat crossover is machined for 50-state emissions legal performance.
Part TypeCylinder Head
BrandEDELBROCK
Package Height7.9
Package Width9.7
Package Length21.1
Weight23.32 PG
Part CategoryPerformance Parts
Cylinder Head MaterialAluminum
Intake Port LocationStandard
Emission50 State Legal
Exhaust Valves IncludedNo
Locks IncludedNo
Engine Make/SizeChevy Small Block (262-400)
Retainers IncludedNo
Guideplates IncludedNo
Rocker Arms IncludedNo
Oiling StyleThrough pushrod
Rocker Arm Nuts IncludedNo
Cylinder Head FinishNatural
Valve Seats MachinedNo
Intake Valve Angle23
Valve Seat MaterialPowdered metal
Heat CrossoverYes
FinishCast Aluminum
Valve Springs IncludedNo
UsageStreet/Performance
Damper Spring IncludedNo
Valve Guides IncludedNo
Cnc-Machined Intake RunnerNo
Intake Valves IncludedNo
QuantitySold individually
Cylinder Head TypeStandard
Valve Stem Seals IncludedNo
Intake Valve Diameter2.02 in (51.308 mm)
Accessory Bolt Holes DrilledYes
Exhaust Runner Volume (Cc)60
Exhaust Port LocationStandard
TypeBare
Combustion Chamber Volume (Cc)70
Machined For O-RingNo
PreparationRequires Professional Preparation (Bare)
Steam Holes DrilledNo
Rocker Arm Studs IncludedNo
Cylinder Head StyleBare
Part FitmentSemi Universal
Valve Cover Mounting StylePerimeter bolt
Intake Runner Volume (Cc)185
Cnc-Machined Exhaust RunnerNo
Cnc-Machined Combustion ChamberNo
Exhaust Valve Diameter1.6 in (40.64 mm)
Vendor Part Number60659
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
