Buschur Racing 4B11T Sleeved Engine Block

Wanting to push your 4B11T to the max on the road course or make 500+whp on a Mustang Dyno? Your block will need to be sleeved in order to achieve those goals and do it safely!

We're offering this service to you. By sending your 4B11T block to Buschur Racing we will machine it, install a set of bulletproof Darton ductile iron sleeves and ARP Main Studs and send it back to you ready to accept your pistons & rods.  You need to supply us with your piston for final bore/hone.

Bores between 86mm-90mm are available depending on your specific needs.

Darton pioneered modular sleeve designs and specialty ductile iron material beginning with their manufacture of top fuel sleeves in 1978. Darton sleeves excel in the harsh environment of all-out racing. Their centrifugally cast nodular composition represents the highest quality of any cast material. The unique matrix of Darton's centrifugally cast nodular iron sleeves provides unexcelled surface toughness. Darton's unique casting process provides a bore finish which, while very tough, promotes quick and total piston ring seal for the most complete combustion possible from each cylinder.

Your good block core is required to provide this service. Please call us for a return authorization number before sending in your core.

If you would like to purchase this block without a core that is possible. This is also available as a complete shortblock with rods, pistons, bearings and fasteners.