![]() It is is a large market and they have made this engine swap into a simple process. Chevy 502 custom police car engine CC licenseĪftermarket parts manufacturers have made it possible to put big block motors in place of small block motors in any truck you would want to. Though both engines are V-shaped, in a big block engine, that V looks more like a “Y” than not because of the additional space needed. My 454 Chevy big block engineīig blocks have a more square look, and their cylinders will typically be placed further away from each other. This extra weight that the rat has over the mouse can be very noticeable if you are using an engine stand that isn’t rated heavy enough. The 454 big block Chevy “ rat motor ” outweighs its little brother the small block “ mouse” by approximately 130 pounds. As you look down the block will be wider and bigger overall. The heads are noticeably wider and can be taller. When you look under the hood of a car or truck you might immediately be able to tell if it’s a big block or small block just by the sheer size of the motor. The power was already there, so you didn’t have to do a lot to get over 400 horsepower. These engines were in a class all by themselves. Later I learned you could have a big block version for cars. The inline six cylinder in my dad’s farm pickup, the small block V8 that was in the family car, and the big blocks that were in the bigger hay hauling farm trucks. A 396 Chevy is a big block motor while a 400 Chevy motor is a small block.Īs a teenager learning about cars, one of the first things I learned was that there were three different types of motors that I needed to know about. Most often big blocks are known as having greater than 400 cubic inches with small blocks having less, but this isn’t always the case. Pair of Ford FE Big Block engines wikipedia public domain photo The displacement increase was accomplished by stroking the 332 to 3.50-inches. The 332 debuted along with the 352 cubic inch big block. ![]() The “FE” from Ford series big-block was introduced in 1958 as the 332 cubic inch V-8 with a 4.00-inch bore and a 3.30-inch stroke. The Chrysler B and RB engines are a series of big block V8 engines introduced in 1958. Other manufacturers quickly followed suit to keep up with the large engines that GM was producing. As American-built automobiles grew in size following World War II, the engines they used had to become larger and more powerful.īiggest Big Block! 1960s GMC V12 Engine There is a biggest big block of them all “Big Block” was first coined as a term for a series of large displacement V8 engines that were developed by GM in the 1950s, and have been produced in the United States until 2009. Big-block engines are physically larger than small-block engines but the real difference between the two is in the displacement (engine displacement is the measure of the cylinder volume swept by all of the pistons), size of bore, and stroke distance rather than just the size of the engine. What Makes an Engine a Big Block or a Small Blockīig block and small block describe two variations of V8 overhead valve engines. This post is all about what makes an engine regarded as a big block. Big blocks were initially built for large passenger cars and trucks.Big blocks are a Y block instead of a V block.Big blocks are made from thicker materials. ![]()
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