LT1/ LT4 427" Short Block

Mesa Balancing Racing Engines  uses our proven custom pistons with the 4340 forged crankshaft & H beam 4340 rods, this package gives you the ability to max out the factory sleeve block with no worries. This combo works great with Superchargers, turbos with a higher boost to make 1300. By far the best bang for the buck without a sleeved block you will find. (we can also sleeve blocks for higher target HP packages. Please call for pricing on sleeved blocks and time frame) $8495 Displacement: 427" Bore: 4.125" Proven Power Rating: 1400 RWHP Stroke: 4.000" Compression Ratio: 10.5:1 w/ 64cc Chamber Rod Length 6.125" Cylinder Head Compatibility: LT4, LT1 Oil System Type: Dry or Wet Sump Block: GM LT4 6.2L Aluminum Crankshaft: Callies 4340 Magnum Manley or Liberty with our Blueprinting Process Connecting Rods: Callies Ultra Billet Hor Manley -Beam w/ARP Ultra 7/16" Bolts Pistons: Diamond Mahle Wiseco , Manley CP,JE Forged (.300" material above top ring land) Wrist P