BMW Mini Cooper S R56

Intake restriction (Before)

Intake restriction (After)

BMW Mini Cooper S R56 (N14-N18)

Ported Intake and Exhaust runners
***Ported to gasket size
***dividers Knife edged
Bowls pocket ported and corrected
*** intake bowls opened smoothed and blended
Stock Valve size retained.
***5 angle Performance Valve job to increase low lift flow
New Nitrate Blue Valve seals
Springs retainers installed at correct pressures
Max Valve lift:
.420 Intake
.410 exhaust
Surfaced Flat and assembled 
***See Note at bottom***

Cost: $1695.00

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Valve Options

+1.0 mm Stainless Intake Valve single groove


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+1.0 mm 'inconel' exhaust Valve single groove


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STD exhaust Sodium filled multi groove


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Spring Options

Performance Valve springs w/Titanium retainers


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REFUNDABLE Core fee added are the following: Head ( r56 N14-N18 ) $700.00
ALL core fees are happily refunded when your good core is received with in the proper time period.

If you are looking to have V8 Cylinder Heads Ported email me'

All Internet posts and sales default to the prices on this web site. NOTE: there is a 50% FEE, if sale is terminated before completion. Warranty: Due to the intended use of products for High Performance applications We make NO Warranty, either expressed or implied. any questions contact me at