Patriot Performance Heads for your 1999-2004 Lightning / Harley Davidson
promaxx patriot performance

Promaxx Patriot Performance
Stage 1, Stage 2 and Stage 3
CNC Ported / Polished Cylinder Heads


For Your 1999-2004 Lightning / Harley Davidson


    Stage 1 Features:
  • Tested Reman PI Romeo or Windsor Castings
  • New Valves
  • New Intake Valves
  • New Exhaust Valves
  • New Retainers
  • No Exchange or Core Required

    Stage 2 and 3 Features:
  • Tested Reman PI Romeo or Windsor Castings
  • 5 Axis CNC ported
  • Patriot Stainless Valves
  • Stainless, Undercut Intake Valves
  • Stainless, Undercut Exhaust Valves
  • .600″ Lift Springs (max .612″ lift cam)
  • Titanium Retainers
  • 5 Angle Valve Job
  • No Exchange or Core Required
PAT 1001R
click picture to enlarge

Representational Image
Stage 1

 

Patriot Performance Fully Assembled
Stage 1 Heads

Fits 1999-2004 Lightning / Harley Davidson
  • 11 Bolt Valve Cover Design
  • PI Romeo Castings
  • Fully Assembled
  • Stock Specs
  • New Valves
  • Heads w/o camshafts
  • Built to Order
  • Allow 3-4 Weeks
  • ALL Spark Plug Threads Upgraded from 4 to 8 Threads
  • Sold As Pair
  • 50 State Legal


Patriot Performance Fully Assembled
Stage 1 Heads

Fits 1999-2004 Lightning / Harley Davidson
  • 13 Bolt Valve Cover Design
  • Windsor Castings
  • Fully Assembled
  • Stock Specs
  • New Valves
  • Heads w/o camshafts
  • Built to Order
  • Allow 3-4 Weeks
  • ALL Spark Plug Threads Upgraded from 4 to 8 Threads
  • Sold As Pair
  • 50 State Legal
Stage 2

 

Patriot Performance Fully Assembled
Stage 2 Heads

Fits 1999-2004 Lightning / Harley Davidson
  • 11 Bolt Valve Cover Design
  • PI Romeo Castings
  • Fully Assembled
  • .600″ Lift Springs
  • Titanium Retainers
  • Stainless High-Flo 1.78″ / 1.452″ Valves
  • Stage II 5 Axis CNC Ported, Polished
  • Built to Order
  • Allow 3-4 Weeks
  • ALL Spark Plug Threads Upgraded from 4 to 8 Threads
  • Sold As Pair
  • Not Legal For Sale Or Use In California

Patriot Performance Fully Assembled
Stage 2 Heads

Fits 1999-2004 Lightning / Harley Davidson
  • 13 Bolt Valve Cover Design
  • Windsor Castings
  • Fully Assembled
  • .600″ Lift Springs
  • Titanium Retainers
  • Stainless High-Flo 1.78″ / 1.452″ Valves
  • Stage II 5 Axis CNC Ported, Polished
  • Built to Order
  • Allow 3-4 Weeks
  • ALL Spark Plug Threads Upgraded from 4 to 8 Threads
  • Sold As Pair
  • Not Legal For Sale Or Use In California
Stage 3

 

Patriot Performance Fully Assembled
Stage 3 Heads

Fits 1999-2004 Lightning / Harley Davidson
  • 11 Bolt Valve Cover Design
  • PI Romeo Castings
  • Fully Assembled
  • .600″ Lift Springs
  • Titanium Retainers
  • Stainless High-Flo 1.84″ / 1.452″ Valves
  • Stage II 5 Axis CNC Ported, Polished
  • Built to Order
  • Allow 3-4 Weeks
  • ALL Spark Plug Threads Upgraded from 4 to 8 Threads
  • Sold As Pair
  • Not Legal For Sale Or Use In California

Patriot Performance Fully Assembled
Stage 3 Heads

Fits 1999-2004 Lightning / Harley Davidson
  • 13 Bolt Valve Cover Design
  • Windsor Castings
  • Fully Assembled
  • .600″ Lift Springs
  • Titanium Retainers
  • Stainless High-Flo 1.84″ / 1.452″ Valves
  • Stage II 5 Axis CNC Ported, Polished
  • Built to Order
  • Allow 3-4 Weeks
  • ALL Spark Plug Threads Upgraded from 4 to 8 Threads
  • Sold As Pair
  • Not Legal For Sale Or Use In California

When we decided to sell Aftermarket Performance cylinder heads the decision was easy! When performance counts, the Promaxx Patriot Performance CNC-ported Cylinder Heads for the 1999-2004 Lightning / Harley Davidson delivers. Promaxx Patriot Performance Stage 2 and Stage 3 Windsor or Romeo heads come fully assembled and can handle blown or nitrous applications.


The stage 2 heads feature 46cc combustion chambers; 180cc intake runners and 67cc exhaust runners; Stainless, undercut 1.78″ intake / 1.45″ exhaust valves; bronze intake and exhaust guides; titanium retainers and 5-angle machined, hardened seats.