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Blocks & Short Blocks

Mast short blocks are hand assembled by some of the best engine builders in the country using the best components available.  We start with a brand new block that is thoroughly cleaned and deburred.  The blocks are then honed and decked to proper tolerances.  After another thorough cleaning the short block is assembled and ready to ship.  We take pride in our work and are proud to offer a great foundation for your next build!

LT GM Gen V Resleeved Block

Factory Mast

$ 2,299.00

    LS Gen IV Re-sleeve Block

    Factory Mast

    $ 2,750.00

      GM Gen V Bare Block LT1 & LT4 - 6.2L

      Factory Mast

      from$ 1,299.00

        GM Gen V Bare Block 5.3 Liter

        Factory Mast

        from$ 1,299.00

          LSR - Concept Performance Aluminum Bare Block

          Mast Motorsports

          from$ 4,295.00

            LS7 427 Short Block

            Mast Motorsports

            from$ 7,495.00

              LSX 427 Short Block

              Mast Motorsports

              from$ 8,825.00

                LSX 440 Short Block

                Mast Motorsports

                from$ 9,725.00

                  LSX 454 Short Block

                  Mast Motorsports

                  from$ 9,725.00