TrickFlow 255cc LS3 Port CNC Cylinder Heads - 4.065 inch Bore
The 255 LS-3 heads feature's an all new ultra efficient 12Deg design which flows exceptionally well and still keeps the runner volume and valve sizes basically stock. Includes a 69cc 4.065" bore combustion chamber, 2.165" lightweight intake valve, 255cc intake runner, and an 87cc exhaust runner volume. Designed for use with stock rocker arms this head includes powdered metal valve guides standard along with billet aluminum rocker stands
STANDARD FEATURES
Fully CNC ported Intake, exhaust ,and combustion chambers
TEA exclusive 2.165" lightweight intake valves
Lightweight 1.600" Stainless exhaust valves
Competition quality blueprint 5 angle valve job
Precision grind all 16 valves with backcut on intake valve
Flow test with sheet included
Flat mill to chamber volume of your choice
Custom Assembly insuring all springs and pressures are correct
PAC racing Dual .650" valve springs with Ti retainers
Viton valve stem seals
| FLOW DATA 4.060" BORE | |||||||||||||||||||||||||||
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| * Tests conducted on a Superflow SF600 at 28" of water, 4.060" bore, 1.875" exh. pipe |
STANDARD FEATURES
- Material: A356-T6 Aluminum
- Combustion Chamber Volume: 69cc CNC-profiled Standard
- Intake Port Volume: 255cc CNC Ported
