Between turbos, nitrous, and high redlines, there’s no shortage of ways to make big horsepower from smaller engines. Sometimes, you just need cubic inches, though, and BluePrint Engines is serving them up hot. Its 632-cubic-inch big block Pro Series crate engine is belting out north of 800 horsepower without the help of spray or boost. It’s a cold, hard reminder that sometimes, there really is no replacement for displacement. 632 Big Block Pro Series BluePrint Engines BluePrint Engines’ 632 cubic-inch engine is a GM Big Block-compatible monster. That means it’s the perfect choice for your Chevelle, El Camino, Camaro, C/K series, or whatever else it is you need to make seriously fast as quickly as possible.As for the hard specs, the foundation is a high-strength cast iron block with 4-bolt mains. This is a tall-deck motor that is a bit wider than the original. A forged crank, H-beam rods, and pistons help ensure this thing won’t tear itself apart. The massive 632-cubic-inch displacement is achieved with a 4.75-inch stroke and 4.6-inch bores.This big block beauty is belting out a whopping 815-horsepower and 800 lb-ft of torque, and it’s doing it with an 11:1 compression ratio and aluminum heads. That means you can run this thing on 91-octane pump gas, making it a no-brainer for big-power street builds.Don't let that fool you into thinking it's all-street though. This kind of power has the potential to sling a 3,400-pound car through the quarter-mile in 9-seconds. Multiple Levels Of Completion BluePrint Engines What makes the Pro Series 632 a great option for so many people is that you have the choice to work in various levels of completion. It’s available in the form of a long block, a semi-complete carbureted version with the manifold and essentials, or the ready-to-run variant with everything from the oil pan to the accessories.The long block and carbureted variants are great for situations where you just need a solid foundation to start with. Either is capable of producing 815 horsepower, just like the most complete version can. The only difference is that you’re not spending money on parts you don’t need.If you do need it all, the ready-to-run version is the way to go. Though you will need to pre-plan the fuel system as it’s equipped with a Holley Sniper EFI setup. Thankfully, you can run a regular air cleaner because the throttle body is meant to look like a carburetor, taking your sleeper build to a whole new level. It's also available in a special blacked-out reaper edition for added menacing vibes. A Warranty To Boot BluePrint Engines If you were expecting the price to hurt, you’re in for a pleasant surprise. The complete, ready-to-run version of the 632 Pro Series is selling for $21,099. The carbureted setup is commanding $17,699, and the long block sits at $16,399. That’s about what you’ll spend to build something of this magnitude using fresh parts and the machine shop. The benefit of going this route is that you get BluePrint’s 30-month, 50,000-mile warranty. All of its engines are also built here in the US and dyno-tested before shipping out, giving peace of mind in knowing the job’s done right.