Navardi Tuned

Darton Sleeve N20 Engine Block + CP Pistons ONLY

Regular price
$6,709.00 USD
Regular price
$6,356.00 USD
Sale price
$6,709.00 USD
Shipping calculated at checkout.
CP Piston Pin Option

After maximum reliability and increased ability to make big horsepower and torque!?
We are the only company that has invested this much time and resources into the N20/N26 engine platforms and produce the worlds strongest N20s and B48s. 

Our Darton Sleeves are capable of withstanding over 1000 HP, simply pair with correct turbo and internals and you'll have an absolute unit of an N20

Please note! These are made to order and have a lead time of 6-8 Months! 
Why so long? This is due to several factors including consistent supply chain delays and the fact we take our time to ensure we build the highest quality engines. You won't find anyone else that builds these motors to the quality standard we do, or have the knowledge and know-how to get the job done!


  • Improved Block Strength
  • Improved Cooling
  • Increased Boost and Horsepower Potential 
  • Superior Oil and Compression Control
  • Superior Cylinder Sealing and Ring Wear
  • Bulletproof Darton Ductile Iron
  • N20 Engine Block, Machined With 4x Individual Darton Sleeves Installed 
  • Block Deck Surface Machined
  • Torque Plate Honed To Suit Pistons
  • 1x Set CP Carrillo Pistons 84mm Bore
  • Washed Cleaned Block + Galleries
  • Replacement of the freeze plugs with tapped plugs for easy servicing of your oil galleries!

Please note! This is for only the engine block and sleeves pre-installed!

Pistons are used to ensure correct honing process is used, block will require Notching for most conrod designs and Timeserting for 10x M11 Headstuds


      BMW N20 Darton Sleeve BMW N20 Darton Sleeve BMW N20 Darton Sleeve BMW N20 Darton Sleeve BMW N20 Darton Sleeve BMW N20 Darton Sleeve BMW N20 Darton Sleeve BMW N20 Darton MID Wet Sleeves Forged BMW N20 Short Motor Forged BMW N20 Short Motor Forged BMW N20 Short Motor


      Shopping Experience Guarantee

      Great Quality, Honest and Reliable Goods & Services, With Prompt Fulfillment Timelines.

      Customer Service Guarantee

      Exception & Helpful Customer Service.

      Privacy Guarantee

      User Privacy Is Our Biggest Concern, Shop Safely With Us Knowing We Do Not Share Your Personal Data With Anyone, Or Corporate Entity.

      Safety & Security Guarantee

      Secure and Safe Checkout.


      BMW N20 PWG
      BMW Tuning
      Bootmod3 Custom Tune
      BMW F series
      BMW F20 N20

      I’ve met Harry from Navardi a couple off months ago and from that everything went straight upwards. He helped me out with different questions on my n20 engine with lower compression pistons.

      Salem, Belgium

      Awesome experience, Harrison’s work is remarkable. He did a wonderful job on BM3 custom tuning for my wagon F31 N20. Has excellent recommendations and resources. Without any doubts, eyes closed in trust any tune.

      Billy, Canada

      Harry at Navardi Tuned is the most knowledgeable tuner for these engines. My n20 now performs greater and more efficiently; strong, smooth, and consistent!

      Spencer, USA

      Perfect job done by Harrison on my BMW F33 420i engine.

      Very serious, he spared no effort to provide me with top-level programming. Powerful, flexible reactive with maximum reliability.

      I live in France the time difference has never been a problem. Depending on the datalogs produced, I received dozens of updates over several weeks. Excellent follow-up.
      Definitely recommend Navardi Tuned!

      Laurent, France

      The most seamless experience, Harry (the owner) is the most helpful person I've ever met in this industry! I recieved endless support throughout the months before tuning, all the way through the tuning process, and a TON of follow up afterwards. Do not listen to some of the other reviews here on Google, they are spreading serious mis-information. They are all missing the fact that the owner of the troubled vehicle acted negligently in looking after a car that HE decided to tune well above factory specs... seemingly very idiosyncratic to a normal person. Regardless of this, if you want your BMW tuned to make it more enjoyable to drive, or to accompany any modifications you have done to it, you couldn't find a better guy than Harry.

      Ryan, Australia