LS 4.0 Stroke 4340 Crankshaft gm big block Mesa Balancing Racing Engines sleeved

Mesa Balancing Racing Engines sleeved short blocks are all fully blueprinted machined and sleeved in house as seen on FB and IG on our videos using the highest quality parts and components for the given applications

We also offer these packages in the aluminum block versions as well

Chamfered oil holes for improved oiling to bearings

Please call our office for specific pricing on specific components needed to make these higher Hp levels we are experienced in the building tuning and racing these engines and can better guide you in your purchase

300" material above top ring land) For Improved Ring Seal Wrist Pins: Upgraded Tool Steel

LS 4.0 Stroke 4340 Crankshaft gm big block Mesa Balancing Racing Engines sleevedManley 4. 0 stroke 4340 forged LS crankshaft . Manufacturer part number 190058