Performer RPM Cylinder Head for Small Block Chevy

Vehicle Info Needed

EDELBROCKPART NUMBER: 350-60999

Performer RPM Cylinder Head for Small Block Chevy

Name: Performer RPM Cylinder Head for Small Block Chevy
Brand: EDELBROCK
SKU: 350-60999
Price: 1178.95 USD
Availability: InStock

^$1,178⁹⁵

Ships on Sep 17, 2026

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Performer RPM Small Block Aluminum Angle Plug Cylinder Heads

1986 & Earlier Small Block Chevy 302-400ci
Valve Springs for Hydraulic Flat Tappet
Port Volumes: 185cc/65cc
Combustion Chamber size: 64cc
Valve Sizes: 2.02"/1.60"
Angled Spark Plug

Assembled, Sold Each

Designed for non-emissions 302, 327, 350 and 400 c.i.d. engines up to 1986, these heads made 420 horsepower with the Performer RPM Power Package for small-block Chevys. Hardened pushrods are required.

Installation Notes: When using stock rockers on SB-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.

Combustion Chamber Volume:	64cc
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:	9/16'
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 Seat

Valve Lift	Intake	Exhaust
.100'	63	51
.200'	124	94
.300'	181	128
.400'	227	146
.500'	253	157
.600'	253	163
.700'	N/A	N/A
Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28' H2O

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

Part TypeCylinder Head

BrandEDELBROCK

Package Height7.7

Package Width10.3

Package Length22.4

Weight30.92 PG

Retainers IncludedYes

Guideplates IncludedYes

Oiling StyleThrough pushrod

Valve Seats MachinedYes

Heat CrossoverNo

Number Of Springs Per ValveSingle

Spark Plug StyleAngled

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 IncludedYes

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/SizeChevy Small Block (262-400)

Lock Style7 degree

Rocker Arms IncludedNo

Rocker Arm Nuts IncludedNo

Cylinder Head FinishNatural

Intake Valve Angle23

Maximum Valve Lift0.575 in (14.605 mm)

Valve Seat MaterialPowdered metal

FinishCast Aluminum

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)65

Exhaust Port LocationStandard

TypeComplete

Combustion Chamber Volume (Cc)64

Machined For O-RingNo

PreparationBolt On (Not Required)

Cylinder Head StyleAssembled

Part FitmentSemi Universal

Valve Cover Mounting StylePerimeter bolt

Valve Stem Seal StylePositive stop

Intake Runner Volume (Cc)185

Cnc-Machined Exhaust RunnerNo

Vendor Part Number60999

Package Qty1

Package TypeEA

No Questions

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