LT1/ LT4 427" Short Block gm ls By far the best bang

By far the best bang for the buck without a sleeved block you will find

070" Proven Power Rating: 1400 HP Stroke: 4

620" Compression Ratio: 10

***CORE EXCHANGE SHIPPING: LME is happy to assist you in shipping your block and crankshaft cores to help you save money

3mm Oil Bearings: Clevite H Series Mains & Rods Main Studs: ARP

LT1/ LT4 427" Short Block gm ls By far the best bangMesa 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