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Vehicle Info NeededEDELBROCKPART NUMBER: 350-77579
Victor Jr 23° Cylinder Head for Small Block Chevy
$59999
Ships on 09/17/2026
Lowest Price GuaranteeVictor Jr. 64cc Aluminum Cylinder Heads
- 1986 & Earlier Small Block Chevy 302-400ci
- Port Volumes: 215cc/85cc
- Combustion Chamber size: 64cc
- Valve Sizes: 2.08"/1.60"
- Angled Spark Plug
- Assembled with no valve springs, Sold Each
These heads have .300' raised exhaust ports and hardened, ductile iron valve seats and phosphor bronze guides. A 9/16' thick deck surface provides superior gasket retention. Valves are 1-piece, stainless steel.
Installation Notes
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. 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.Combustion Chamber Volume: 64cc Intake Runner Volume: 215cc Exhaust Runner Volume: 85cc Intake Valve Diameter: 2.08' Exhaust Valve Diameter: 1.60' Valve Stem Diameter: 11/32' Valve Guides: Manganese Bronze Deck Thickness: 9/16' Valve Spring Diameter: N/A Valve Spring Maximum Lift: N/A Rocker Stud: 7/16" Guideplate: Hardened Steel Pushrod Diameter: 5/16' Valve Angle: 23° Exhaust Port Location: +.300 Spark Plug Fitment: 14mm x 3/4' Reach,
Gasket SeatValve Lift Intake Exhaust .100' 67 64 .200' 119 112 .300' 177 153 .400' 226 188 .500' 265 207 .600' 281 217 .700' 285 220 Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28' H2O
Part TypeCylinder Head
BrandEDELBROCK
Package Height8.6
Package Width11.1
Package Length25.7
Weight27.7 PG
Part CategoryPerformance Parts
Cylinder Head MaterialAluminum
Intake Port LocationStandard
EmissionNon-Emissions
Exhaust Valves IncludedYes
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 MachinedYes
Intake Valve Angle23
Valve Seat MaterialDuctile iron
Heat CrossoverNo
FinishCast Aluminum
Valve Springs IncludedNo
Spark Plug StyleAngled
UsageCompetition
Valve Seat Machine Style3-angle
Damper Spring IncludedNo
Valve Guides IncludedYes
Cnc-Machined Intake RunnerNo
Intake Valves IncludedYes
QuantitySold individually
Cylinder Head TypeStandard
Valve Stem Seals IncludedNo
Intake Valve Diameter2.08 in (52.832 mm)
Accessory Bolt Holes DrilledYes
Exhaust Runner Volume (Cc)85
Exhaust Port LocationStandard
Valve Guide MaterialManganese bronze
TypeComplete
Combustion Chamber Volume (Cc)64
Machined For O-RingNo
PreparationBolt On (Not Required)
Steam Holes DrilledNo
Rocker Arm Studs IncludedNo
Cylinder Head StyleBare
Valve Cover Mounting StylePerimeter bolt
Intake Runner Volume (Cc)215
Cnc-Machined Exhaust RunnerNo
Cnc-Machined Combustion ChamberNo
Exhaust Valve Diameter1.6 in (40.64 mm)
Vendor Part Number77579
Package Qty1
Package TypeEA
No Questions
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