421 Small Block Chevy Small Block Options:Rod I beam Std option - H beam AT Mesa Balancing Racing Engines

AT Mesa Balancing Racing Engines  all of our Street and Strip Short Blocks for 4

a We can build these with a variety of pistons to obtain the compression ratio of your choice

Cam bearings installed and test cam fitted to ensure smooth rotation

AT Mesa Balancing Racing Engines  all of our Road Warrior Short Blocks for 4

421 Small Block Chevy Small Block Options:Rod I beam Std option - H beam AT Mesa Balancing Racing EnginesMesa Balancing Racing Engines uses only Dart Merlin or Brodix or GM bowtie new blocks to build these high HP packages which on pump gas can make 600 + depending on the cylinder heads and components used and well over 1000 with blower turbo or NO2. These new blocks are put through the same machining process as all our engines (we do not use new blocks without machining them like most of our competitors ) all blocks are inspected for cracks and flaws