This auction is for a single BRAND NEW
Trickflow GENX LS3 255cc 6-bolt cylinder head, TFS-3261T004-C01
If you need a pair of cylinder heads, just order
X2 of this auction.
These are the TFS GenX LS3 255cc intake runner
aluminum heads with 6-bolt pattern for aftermarket blocks, 69cc chambers, titanium
retainers and a max lift
of .650 for hydraulic roller camshafts.
Wholesale
Distribution available, contact us and we can
create a special listing for you!
Wholesale Distribution available,
contact us and we can create a special listing
for you!
Looking for serious LS3 horsepower?
Trick Flow engineers combined the best features
of factory GM LS3 and LS7 cylinder heads with Trick
Flow’s own unique brand of race-winning engineering
and technology to create the ultimate square port LS
cylinder head for 4.000" and larger bore engines—the
GenX® 255. The heads feature fully CNC Competition
Ported runners with a premium high resolution surface
finish for maximum airflow and performance potential.
The valve angles have been changed from 15° to 12° to
increase piston-to-valve clearance and allow the use
of larger camshafts. The coolant holes through the
head deck were redesigned to work with all LS head
gasket and engine block combinations. Stock LS3 ports
accommodate LS3-style intake manifolds and LS9/LSA
blower assemblies. GenX 255 heads are available with
standard and 6-bolt per cylinder mounting patterns.
Cylinder heads are available fully assembled or as
bare castings.
Accessory Bolt Holes Drilled
|
Yes |
CARB EO Number
|
D-747 |
CNC-Machined Combustion Chamber
|
Yes |
CNC-Machined Exhaust Runner
|
Yes |
CNC-Machined Intake Runner
|
Yes
|
Combustion Chamber Style
|
Heart |
Combustion Chamber Volume (cc)
|
69 |
Cylinder Head Finish
|
Natural |
Cylinder Head Material
|
Aluminum |
Cylinder Head Style
|
Assembled |
Damper Spring Included
|
No |
Exhaust Port Location
|
Standard |
Exhaust Port Shape
|
Oval |
Exhaust Runner Volume (cc)
|
87cc |
Exhaust Valve Angle
|
12 |
Exhaust Valve Diameter (in)
|
1.600
in. |
Exhaust Valves Included
|
Yes |
Guideplate Pushrod Size
|
5/16
in. |
Guideplates Included
|
No |
Heat Crossover
|
Yes |
Intake Port Location
|
Standard |
Intake Runner Volume (cc)
|
255cc |
Intake Valve Angle
|
12 |
Intake Valve Diameter (in)
|
2.165
in. |
Intake Valves Included
|
Yes |
Lock Style
|
7
degree |
Locks Included
|
Yes |
Machined for O-Ring
|
No |
Maximum Valve Lift (in)
|
0.650
in. |
Notes
|
Includes
new rocker arm rail mounts for use with LS3
1.7 ratio rocker arms. OEM rocker arm rail
mounts will not work with these heads. Does
not fit 2010 and later Chevrolet Camaro OEM
exhaust manifolds; aftermarket headers are
required. |
Number of Springs Per Valve
|
Dual |
Oiling Style
|
Through
pushrod |
Outside Diameter of Outer Spring (in)
|
1.300
in. |
Quantity
|
Sold
individually. |
Retainer Material
|
Titanium |
Retainers Included
|
Yes |
Rocker Arm Nut Thread Size
|
N/A
|
Rocker Arm Nuts Included
|
No |
Rocker Arm Studs Included
|
No |
Rocker Arms Included
|
No |
Steam Holes Drilled
|
No |
Valve Guide Material
|
Powdered
Metal
|
Valve Guides Included
|
Yes |
|
-IN STOCK ITEMS- Ship no later
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TREperformance Inc.
1725 Monrovia Ave.
Suite D7
Costa Mesa, CA 92627
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AND
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Contact info:
Email Anytime
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Mailing,
Shipping & Storefront Address:
TREperformance
1725 Monrovia Ave.
Suite D7
Costa Mesa, CA 92627 |