Darton Sleeved GT-R MID Sleeve Kit

These Darton MID (Modular Integrated Deck) Sleeves for your Nissan R35 GT-R with VR38DETT engine are manufactured from bulletproof ductile iron with a tensile strength in excess of 130,000 psi. The Darton MID Sleeve is engineered to reinforce the upper deck area for superior strength and reliability in high horsepower, high boost, and large bore size applications. Every MID sleeve features Darton’s exclusive “swirl coolant technology” to enhance water flow from the block to head, promote cooling, and prevent detonation that can lead to engine failure. We highly recommend that sleeves be installed by an experienced professional