LS3 821 823 CNC Ported Aluminum Cylinder Heads Assembled .600 Lift

CNC Ported LS3 821, 823 Cylinder Heads, Manley Valves, Manley Nextec Spring Kit, Manley Steel Retainers, Assembled, .600 Lift Hydraulic Roller, 2 Heads

$2,629.95

Head Upgrades

Manley Severe Duty Exhaust Valves + $95.00

Soften Chambers + $300.00

Customer Supplies Castings - $300.00

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⚠ PROP 65 WARNING

⚠ WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer. Please contact us to obtain a list of harmful chemicals. For more information, go to www.P65Warnings.ca.gov.

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Description

Ported LS3 821 / 823 aluminum cylinder heads

Included Components:

Stock LS 821/823 CNC Ported Castings

Manley Race Master Valves

Manley Nextec Spring Kit with Steel Retainers (.600 Lift Hydraulic Roller)

Flow Numbers:

Intake Flow

.100 78 cfm

.200 163 cfm

.300 237 cfm

.400 290 cfm

.500 338 cfm

.600 369 cfm

.700 373 cfm

Exhaust Flow - no pipe

.100 48 cfm

.200 107 cfm

.300 148 cfm

.400 195 cfm

.500 210 cfm

.600 220 cfm

.700 226 cfm

CNC Porting, intake, exhaust and combustion chamber

72cc combustion chamber, 280cc intake volume, 93cc exhaust

Specifications

More Information
CNC Part Number	CNC-LS823-600HR
Price	$2,629.95
Sold As	Set
Manufacturer's Part Number	LS823-600HR
Brands	CNC-Motorsports
Part Types	Cylinder Head
Departments	Parts
Vehicle Make	Chevy LS
Combustion Chamber Size	68cc
Cylinder Head Material	Aluminum
Cylinder Head Style	Assembled
Exhaust Valve Size	1.590
Intake Valve Size	2.165
Custom Notices	⚠ PROP 65 WARNING