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BMW/Mini Cooper and DPR SuperCooper™ Specifically Designed and Modified Cylinder Heads

Bill Hartner Mini Cooper S R53 Mini Cooper #2 Mini Cooper #3 Mini Cooper #80

Most Popular BMW/Mini Cooper Engines and specs: (others available):
Limited Edition Model Mini Cooper(s): (Limited Editions):

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Mini Cooper Cylinder Head       Mini Cooper Cylinder Head       Mini Cooper Cylinder Head       Mini Cooper Cylinder Head       Mini Cooper Cylinder Head       Mini Cooper Cylinder Head


Options

Mini Cooper Cylinder Head Work


(Heads with - Cams $20 and Rockers $80 Extra)
Prices
HEAD REFRESH - A complete breakdown, inspection,, and cleaning of the Head, the Valves, Springs, Hand Lap Valves, Lube, and re-assemble. (This is usually performed between races, and/or between racing seasons...) [Read more details...] $495
STAGE I - The "Head Refresh" process is performed, along with a Competition Multi-Angle valve job, then re-assembly and vacuum testing.. (This is usually performed when valves do not seal, need replaced, or at high mileage intervals, during ANY engine rebuild, or if ANY engine damage has occured) [Read more details...] $595

See DYNO Results of Stage II Head, Bolted onto STOCK R53/Mini Cooper "S"- stock valves (read the story...)

STAGE II - The "Head Refresh" process is performed, along with a Competition Multi-Angle valve job, then 30mm "pocket port" job, chamber buff, re-assembly and vacuum testing.. (This is a performance upgrade, allowing better overall power and torque) [Read more details...]
$950
STAGE III - The "Head Refresh" process is performed, along with a Competition Multi-Angle valve job, then FULL port and polish job, chamber buff, re-assembly and vacuum testing.. (This is a Street/Strip performance upgrade, allowing much better overall power and torque) [Read more details...] $1,150
STAGE IV - The "Head Refresh" process is performed, along with a Competition Multi-Angle valve job, then FULL port and polish job, Modify and Polish Combustion Chambers, CC Chambers and balance all four volumes plus/minus 0.4cc, re-assembly and vacuum testing.. (This is a SERIOUS performance upgrade to overall power and torque) [Read more details...] $1,450
Mini Cooper Logo
"SuperCooper" - The "Head Refresh" process is performed, then New larger, (Fully Ceramic coated face) , Valves,(with new larger seats) are installed, Competition Multi-Angle valve job, DPR "Sniper™" Valve Guides installed, then FULL port and polish job with coated exhaust ports, Fully Modified, Polished, and Coated Combustion Chambers, CC and balance Chamber Volumes +/- 0.15cc, Blueprint Rockers, Modify Oiling, "Microlon" Treatment, re-assembly and vacuum testing Plus much much MORE!!!(This is a full COMPETITION product, intented for only VERY SERIOUS RACER's!!!) [Read MORE details...]

* Complete your SuperCooper™ Head with a NEW, DPR "Stage V Camshaft" - The "HOTTEST" Mini Cooper Cam on the Market, and DPR's NEW Mini Cooper, Custom profiled, Forged Racing Pistons, Pins, and Rings!!! *
$3,495
"EXTRAS" - Full list of Performance enhancements, additional modifications, polishing, coating(s), Microlon metal treatment, Chamber work, Surfacing, Camshaft and Cam Cap work, Throttle Body Modifications and Polishing, Rocker Arm blueprinting, Oil SYSTEM AND pUMP modifications, Water Pump Modifications, Valve Spring work, "Sniper™" Valve Guides and much more... [Read more details...]

Select ANY
picture to enlarge

Disassembly
& Inspection

Mini Cooper Head Disassembly Mini Cooper Head Disassembly Mini Cooper Head Disassembly Mini Cooper Head Disassembly Mini Cooper Head Disassembly Mini Cooper Head Disassembly Mini Cooper Head Disassembly Mini Cooper Head Disassembly Mini Cooper Head Disassembly

Detailed Inspection

Mini Cooper Head Inspection Mini Cooper Head Inspection Mini Cooper Head Inspection Mini Cooper Head Inspection Mini Cooper Head Inspection Mini Cooper Head Inspection

Cleaning Parts

Mini Cooper Cylinder Head Cleaning Mini Cooper Cylinder Head Cleaning Mini Cooper Cylinder Head Cleaning Mini Cooper Cylinder Head Cleaning Mini Cooper Cylinder Head Cleaning Mini Cooper Cylinder Head Cleaning Mini Cooper Cylinder Head Cleaning Mini Cooper Cylinder Head Cleaning Mini Cooper Cylinder Head Cleaning Mini Cooper Cylinder Head Cleaning Mini Cooper Cylinder Head Cleaning Mini Cooper Cylinder Head Cleaning Mini Cooper Cylinder Head Cleaning Mini Cooper Cylinder Head Cleaning

Remove Burrs

Mini Cooper Cylinder Head Deburr Mini Cooper Cylinder Head Deburr Mini Cooper Cylinder Head Deburr

Check Valve Springs

Check Valve Springs Check Valve Springs Check Valve Springs Check Valve Springs Check Valve Springs

Check Valve Guides

Check Valve Guides

Check Valves

Check Valves Check Valves Check Valves

Measure Cam lobes

Measure Cam Lobes Measure Cam Lobes

Measure bolts

Measure Bolts

Measure Retainers

Measure Retainers

Grind Valves

Grind Valves Grind Valves Grind Valves Grind Valves Grind Valves Grind Valves Grind Valves

Lapping Surface

Lapping Surface Lapping Surface

Microlon Treatment(s)

Microlon Treatment

Clean Valve Trains

Clean Valvetrain Clean Valvetrain

Guides Ready to Install

Valve Guides Ready to Install

Springs Ready to Install

Springs Ready to Install

Dan at work, porting and polishing

Porting and Polishing Porting and Polishing Porting and Polishing Porting and Polishing Porting and Polishing Porting and Polishing Porting and Polishing Porting and Polishing Porting and Polishing Porting and Polishing Porting and Polishing Porting and Polishing Porting and Polishing Porting and Polishing Porting and Polishing  

Dan getting into his work...

Dan Paramore

Mini heads in Progress...

Porting and Polishing Mini Cooper Head Work Mini Cooper Head Work Mini Cooper Head Work Mini Cooper Head Work

Finished head, ready to Assemble

Mini Cooper Head Work Mini Cooper Head Work Mini Cooper Head Work


DPR Racing's Famous BMW/Mini Cooper Cylinder Heads!
Record Setting BMW/Mini Cooper's!!!

Mini Cooper Custom Cylinder Head

BMW/Mini Cooper - Head Refresh Procedure

$495 (Labor only)


  1. Pre-inspect cylinder heads; Check to and insure all parts are intact, and have arrived without damage
  2. Disassemble head for inspection and clean, remove carbon and clean valve train components (without media blasting)
  3. Failure Analysis is performed on the head and all attached components. Everything is disassembled into parts, then cleaned, thoroughly
  4. Camshaft(s), If applicable, is/are checked for signs of wear, valve float, straightness, thrust surface, and threads. Head cam journals and caps are checked for wear. de-burred, lapped flat and made to fit precisely, to each polishing alignment dowel
  5. Remove and Inspect; Studs, Fasteners, Bolts, and threaded Holes for proper condition. Inspect each for damage to threads, shank, head, and thrust surface. Check for rust, corrosion, and wear. Clean as needed, then lubricate for re-assembly. "Chase" dirt from every threaded hole with thread chaser, solvent, "thread brush", and compressed air. Inspect spark plug holes, clean and restore the sealing surface. Polish the inside and outside of the spark plug access pipes
  6. Check all manifold and gasket mating surfaces for flatness, scratches, left over gasket material and/or sealer, and over all surface condition."Radius", "Edge Break", file, polish, and surface lap, as needed to hand finish machining. Properly re-install all studs
  7. Inspect deck surface for cracks, flatness, roughness, corrosion, scratches, "dings", bore match up, and signs of detonation arcing
  8. Valve Springs Checked for damage, wear, height, pressure and installed to correct specifications
  9. Inspect keepers and retainers for fit, wear and evidence of valve float
  10. Hand lap valves and re-inspect. Head is cleaned again, and Vacuum tested.
  11. Final Inspection and Sign Off.
  12. Final Assembly, using new valve seals(usually supplied with new "Head Gasket Set"), is done in "clean room" environment.
  13. Pack with Instructions, Sign Off.

Optional Services


  • Approximately 38 lbs without cam and rockers - SHIPPING EXTRA ($TBD by location)
  • Cam removal, cleaning, and reinstall $20 extra
  • Rockers removal, cleaning, and re-install $80 Extra
  • Head Gasket set(required); Felpro O.E.M. includes-intake/exhaust manifold, valve cover/spark plug pipes, head gasket, valve seals($149) or MLS ($299)
  • Head Bolts(recommended); (O.E.M. "stretch" bolts $45) or (ARP bolts $$$)
  • View Extras and Add-On's...)

 BMW/Mini Cooper - Stage I

$595 (Labor only)

Competition Multi-Angle Valve Job


  1. The "Head Refresh" process is performed, along with the following work:
  2. Light debur
  3. Lap, port faces and upper cap and gasket area for proper sealing
  4. Competition, high flow, multi angle, valve jobwith preparatory angles.
  5. Polish valve margins, Hand lap valves and re-inspect
  6. Set up proper seat pressure and clearances
  7. Final clean for assembly
  8. Preassembly inspection
  9. Final Assembly, including new valve seals, is done in "clean room" environment
  10. Vacuum test, and sign off
  11. Pack and Ship

 BMW/Mini Cooper - Stage II

$950(Labor only)

Multi-Angle Valve Job/Pocket Port Job



  1. The "Head Refresh" process is performed, along with the following work:
  2. Complete Debur
  3. Lap, port faces and upper cap and gasket area for proper sealing
  4. Port and polish intake and exhaust
  5. Gasket match, port 30mm into ports and pocket port under seats
  6. Light combustion chamber polish
  7. Competition, high flow, multi angle, valve job
  8. with preparatory angles
  9. Polish valve margins, Hand lap valves and re-inspect
  10. Set up proper seat pressure and clearances
  11. Final clean for assembly
  12. Preassembly inspection
  13. Final Assembly, including new valve seals, is done in "clean room" environment
  14. Vacuum test, and sign off
  15. Pack and Ship

 BMW/Mini Cooper - Stage III

$1,150 (Labor only)

Competition Multi-Angle Valve Job, FULL Port & Polish


  1. The "Head Refresh" process is performed, along with the following work:
  2. Complete Debur
  3. Lap, port faces and upper cap and gasket area for proper sealing
  4. Port and polish entire intake and exhaust
  5. Gasket match, and fully port intake and exhaust
  6. Lightly de-shroud combustion chamber polish
  7. CC Chamber and match all four volumes
  8. Competition, high flow, multi angle, valve job
  9. with preparatory angles
  10. Back cut intake valves
  11. Polish valve margins, Hand lap valves and re-inspect
  12. Set up proper seat pressure and clearances
  13. Final clean for assembly
  14. Preassembly inspection
  15. Final Assembly, including new valve seals, is done in "clean room" environment
  16. Vacuum test, and sign off
  17. Pack and Ship

 BMW/Mini Cooper - Stage IV

$1,450 (Labor only)

Competition Multi-Angle Valve Job, FULL Port & Polish, Combustion Chamber Mods


  1. The "Head Refresh" process is performed, along with the following work:
  2. Complete Debur.
  3. Lap, port faces and upper cap and gasket area for proper sealing.
  4. De-flashed inside and out.
  5. Modify oil returns for better flow and distribution.
  6. Competition FULL Port and Polish, Intake and Exhaust.
  7. Gasket match or any intake/exhaust design fully port.
  8. Radius exhaust seats.
  9. De-shroud combustion chamber polish.
  10. CC Chamber and match all four volumes within .4 cc.
  11. Competition, high flow, multi angle, valve job
  12. with preparatory angles.
  13. Back cut intake valves.
  14. Polish valve margins, Hand lap valves and re-inspect.
  15. Set up proper seat pressure and clearances.
  16. Blue print with documentation.
  17. Final clean for assembly.
  18. Preassembly inspection.
  19. Final Assembly, including new valve seals, is done in "clean room" environment.
  20. Vacuum test, and sign off.
  21. Pack and Ship.


 "SuperCooper™" Mini - Stage V

$3,495 (Parts and Labor)

New Larger Ceramic Coated Intake and Exhaust valves, New Seats,
FULL Port & Polish, FULL Combustion Chamber Mods w/Ceramic Coating, Oil System Rework, Rocker and Keeper Blueprinting,

and much more..

  1. The "Head Refresh" process is performed, along with the following work:
  2. Completely debur, remove flash and blueprint casting
  3. Lap, upper cap and gasket area for proper sealing
  4. DPR's special High Lift CAM/Spark Plug tube modification(s)
  5. Install New DPR "Sniper™" Valve Guides
  6. Install New Black Nitrite +2.3mm exhaust, and +1.8mm intake valves
  7. TBC™ Ceramic Coat Intake and Exhaust face, and Exhaust radius
  8. Install New DPR PCS Valve Spring Kit(Springs and Titanium Retainers)
  9. Super finish/Polish Rocker Shafts
  10. Modify block to head OIL system for better flow and distribution
  11. Competition FULL Port and Polish, Intake and Exhaust
  12. Gasket match or any intake/exhaust design fully port
  13. Radius exhaust seats
  14. De-shroud combustion Chambers and polish
  15. CC Chambers and match all four volumes within .15 cc !!!
  16. TBC™ Ceramic Coat Chamber, And Exhaust ports
  17. Diamond Finish Intake ports
  18. Competition, high flow, multi angle, valve job
  19. with preparatory angles
  20. Back cut intake valves
  21. Radius and Polish valve margins, Hand lap valves and re-inspect
  22. Blue Print Rocker arms, and rocker shafts, including full OIL modifications
  23. Set up proper seat pressure and clearances
  24. Port Faces Lapped Flat (Studs removed, cleaned and reinstalled)
  25. Deck Milled .040" & Lapped to increase compression
  26. Blue print with documentation
  27. Final clean for assembly
  28. Preassembly inspection
  29. Final Assembly, including new "VITON" Racing valve seals,
  30. is done in "clean room" environment
  31. Vacuum test, and sign off
  32. INCLUDES New MLS .030" High Performance Head Gasket!
  33. Pack and Ship with instructions

Optional Services


  • Complete the SuperCooper™ Head with a NEW DPR "Stage V Camshaft"
  • Cam removal, cleaning, and reinstall (INCLUDED!!!)
  • Rockers removal, cleaning, and re-install (INCLUDED!!!)
  • Head Gasket set(required); (INCLUDED!!!)
  • Head Bolts(required); (ARP bolts $$$)

 BMW/Mini Cooper Cylinder head "Extras":




DPR CUSTOM "MINI" upgrades

  • DPR Valves Oversize/Nitrite(+0.5, +2.0) (IN/EX): $160
  • DPR PCS Valve Spring Kit(Springs and Titanium Retainers): $380
  • DPR Dual Springs: $320
  • DPR Titanium retainers (Single/Dual, NOT PCS springs): $220
  • DPR's special High Lift CAM/Spark Plug tube modification(s): $20
  • DPR's High Lift Cam/Rocker Arm Oiler Mod(s): $40
  • DPR Mini Sniper™Racing Valve Guides: $164
  • DPR's Exclusive Competition BMW/Mini Cooper Camshaft(s)
  • View Specs and Pricing

Microlon

  • "As featured in Street Performance Magazine, our little BMW/Mini Cooper "S" picked up 3 1/2hp in an independent dyno test. The dyno tech couldn't believe that Microlon would give that much performance."
  • Microlon CL100 - Add to Engine,Trans,PS for newer 4-8 cyl: $183.96+shipping
    (Read about "Microlon" Products)
  • Microlon Parts Treatment - Valves,Rockers,Cam(s), Springs & Retainers: $60
    (Read more...)

Throttle body/Injectors

Coatings

Combustion Chamber Work

  • Combustion chambers matched to the bore. Deshroud valve area.
      Shape and polish: $200
  • Measure and record one combustion chamber volume: $18
  • Or balance all four volumes plus/minus 0.4cc: $60
  • Balance plus/minus 0.15cc: $80
  • Measure and match volumes with valves installed after seat cut: $300
  • Custom combustion chamber modifications such as high swirl
      chambers, lower combustion chambers, stop chambers: Call for pricing!
  • Modify Combustion chamber "Quench Area" to direct and shape
      the explosion of combustion: $30/Cyl

Rockers (+Oil upgrades)

  • Blueprint rocker arms: Micro polish roller tip, hand lap, and polish hydraulic
      adjuster tip, polish rocker shaft bore, polish rocker shafts, including detailing plastic spacers: $80
  • Micro Polish/Super finish rocker shafts: $10 each
  • Rocker Arm and shaft Oiler upgrades; to thrust surface, and side "wipers" of arms, and modify rocker shafts oil outlets, surface: $155

Intake/Exhaust Manifold

  • Fully Modified Intake Manifold: Hours of detailed hand work. Enlarge and modify the runners all the way through, including the runner's inlet radius deep inside the plenum. Special modifications to and around injector boss. Modify runners all the way through and radius entrance inside plenum. Match plenum, debur and blend outside: $350
  • Manifold Fully Ported and Polished: $200
  • Manifold Port Matched: $100
  • Enlarge manifold for oversized throttle body: $100 and UP!
      (May be included in manifold porting)
  • Diamond intake port finish: $60
  • Exhaust manifold port match: $60 - $100

Head/Deck Surface (+Oil Upgrades)

  • Lap deck surface: $20
  • Mill deck surface: $60
  • Increase block to head oil flow: $40

Camshaft and Cam Cap Work (+Oil Upgrades)

  • Micro Polish/Super finish Camshaft bearing Surface(s): $20
  • Blueprint Cam : $40
  • Polish camshaft journals: $40
  • Align "polish" cam journals and caps: $40
  • Machine oil groves in camshaft journals: $40
  • Machine oil retention grove in cam cap : $35
  • Polish one set (16) cam cap dowel pins and dowel receiving bore.
      Remove oxidation, rust, dings, dents, and corrosion for proper
      fit, prevents seizing and improperly located caps: $50

Valve Guides

  • Valve guide replacement includes removal of valve guide, bore
    Prep, hone guide to fit valve stems. Install new guide: $144 labor
  • DPR Mini Sniper™ Racing Valve Guides: $164 labor

Valve Springs, Retainers, and Keepers

  • Hand lap keepers to tighten up fit: $20 labor
  • Blueprint Springs (Req'd if using titanium retainers): $40

Flow Bench

Oil Pump (+Oil Upgrades)

  • Blueprint new OEM Oil pump and Pickup, for better Flow, and better Lubrication: $45 labor

Water Pump

  • Blueprint new OEM Water pump, better Flow, better Cooling: $45 labor

Mini Cooper Custom cylinder heads can be supplied outright. Contact us for availability and details. Stage VI and VII custom modifications available for COMPETITION USE ONLY!!!

* The SuperCooper™ and Sniper™ valve guides are DPR EXCLUSIVE!!! *
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