BluePrint 632ci ProSeries Big Block V8 Engine – 815 horsepowerCrate engine buyers looking for big block power don't have to opt for a Ford engine. Major independent engine builders like BluePrint offer high-powered crate versions of GM big block engines like the 632 cubic inch, or 10.4-liter ProSeries Big Block, which is rated at 815 horsepower. Several versions of the 632 ProSeries engine are available, from fully dressed complete crate engines that are ready for installation to cheaper long blocks that will require some additional components.BluePrint also offers the engine in Blackout Reaper Edition form, pictured here, which finishes the entire engine in a stealthy shade of black. Prices vary between variants, with the engine pictured above priced at $19,499 and the cheapest available 800+ horsepower long block available from $15,199. That's not much considering the power on offer, and makes the engine an appealing option for a variety of track and street builds. For the engine to be legally fitted to street builds, it must be used in a car registered in 1967 or earlier, otherwise it risks falling foul of emissions laws.
