Such is the case with the 632ci big-blocks built by Lizzard Racing and its owner Matt Grillo. Using a Merlin II block and Dart's famed Big Chief cylinder heads, the big- block of your dreams is ...

We were impressed with the stout four-boltmain Merlin II block, which sports extra-thick cylinder walls (4.560 max allowable bore size), blind-tapped head-bolt holes, thick main webs, reinforced ...

However, SpaceX is pausing development of its block-five Merlin engines not only to investigate the blast, but also make room to keep block-four Merlin engines qualified for flight. This will ...

From there, the engine went into "Phase II" assembly ... was slipped into the block. The crowning jewel atop the Merlin/Motion's 540 engine is the exotic Kinsler Cross Ram injection system.

The Merlin II was developed about a year later ... such as a two-piece cylinder block. Some of these improvements were developed by Packard engineers in an effort to make the complex engine ...