LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Our stage 2.5 Cylinder heads are now available!

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Old May 7, 2008 | 01:13 AM
  #1  
PortMasters's Avatar
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From: Orlando, FL
Our stage 2.5 Cylinder heads are now available!

Disassemble, Jet Wash, and Bead Blast Cylinder Heads.

Ferrea 6000 Series Stainless Steel Valves 2.00”/1.56”.

Competition 3 Angle Valve Job with full radius and Throat Work.

Complete Stage 2.5 Porting On Intake and Exhaust Runners.

The Combustion Chamber Receives Work For More Flow and Detonation Resistance.

Mill Heads .010” For Proper Gasket Retention and Straightness or if you want more milling just let us know.

The Combustion Chambers Are Then Coated With A Thermal Heat Dispersant Coating as well as the valve faces.

Assemble Heads With New Seals and Custom .650” Lift Springs, TITANIUM Retainers, Comp Pro Locks, and Shims as Needed.

Flow Cylinder Heads With Print Out.

We Also Offer These Heads With An Optional Nitrous Exhaust Port For $200.00 Extra.

$1,675.00 on exchange
Old May 7, 2008 | 02:45 PM
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PortMasters's Avatar
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Also you can get a matched camshaft added for $239.99!
Old May 7, 2008 | 02:47 PM
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Any rough flow numbers, or estimated HP potential?
Old May 7, 2008 | 03:27 PM
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Yes,
These heads will flow in the 270-280 CFM range on the intake depnding on the application. We do offer this same head with a "small port" that will flow in the 265-270 cfm range with only a 180cc runner. The real special thing about these heads is the thermal dispersant coating and the port volume is relatively small for the runner volume on the intake. Most of the port work is focused on chamber, throat, and bowl area with a wicked valve job that allows these heads to flow very well at .100" all the way up. These are great for N/A, Nitrous and Forced induction. These are recommended for 350-355ci motors but will work on 383+ci engines. We recommend our stage 3 highly for 383+ though for maximum effectiveness. These heads with our matched camshaft will produce an average of over 410-430 rwhp with greater torque than most other heads with all bolt ons in 6-speed cars.
Old May 7, 2008 | 04:31 PM
  #5  
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From: Cypress, TX
Originally Posted by PortMasters
Disassemble, ...
Since I dont want to divert this thread's subject, I'd like to see a new
thread which discusses y'all's viewpoint on the differences between
the DART Pro 1 ported heads, versus GM LT1 casting Stage 2 ported heads.
Old May 7, 2008 | 07:45 PM
  #6  
PortMasters's Avatar
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Originally Posted by caldercay
Since I dont want to divert this thread's subject, I'd like to see a new
thread which discusses y'all's viewpoint on the differences between
the DART Pro 1 ported heads, versus GM LT1 casting Stage 2 ported heads.
Sure,
If you send me a PM I would be glad to discuss the differences in the two
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