LS3 CNC Ported Heads SDPC 821 Castings NEW
10-02-2012, 09:17 PM
#1
LS3 CNC Ported Heads SDPC 821 Castings NEW Category: Engine - Power Adders
Price: $1200
Location (State): Can-BC
Item Condition: Brand New
Shipping Information: Item Can be Shipped
LS Engine?: Fits LS Engine
these come not as shown with light weight valves and Z06 springs
but with SS valves and the blue Z06 springs same as yellow ones
$1200
and are 68cc
Manley nextek polished springs and Ti retainers good to .700" lift plus ADD $300.00
these are not shity patriot springs so dont compare coal to diamonds
$1500
SDPC CNC 821 castings smooth chambers
Valve Angle: 15-degree
Combustion Chamber: 70cc*
Intake Port Volume: 275cc*
Exhaust port Volume: 99cc*
Minimum Cylinder Bore Required: 4.000"
* Approximate, Numbers are within +/- 2ccs
Milling Information for Combustion Chamber Sizing:
- Approximately 0.006 per 1-cc
For 68-cc Chamber Remove 0.012
For 65-cc Chamber Remove 0.030
Specifications:
Max Lift: 0.570"
V/Springs: Stock LS3/LS6
Locks: 7-degree
Retainers: Stock
Flow Chart:
Flowed @ 28 H20
Lift 0.100 0.200 0.300 0.400 0.500 0.600 0.650
Intake 70 153 225 280 324 350 358
Exhaust 52 118 180 201 217 230 236
Last edited by Jablowme; 10-21-2012 at 01:24 PM.
