it appeared in Camaros, Chevelles, El Caminos, and even briefly in the Corvette. Known for its thunderous output, stout reliability, and solid design, Chevy’s 396 big block has maintained its status as a top dog, even though it hasn’t...
block (SBC), big-block (BBC), and 348-409 V-8 engine blocks, cranks and heads. We have detailed instructions about Chevy casting number locations and extensive notes about Chevy "mouse motor" and "rat motor" V-8 engines. Mortec also has information on Chevrolet V-8 bore and stroke ...
Following the L19 variant, Chevy came out with the Vortec 7400 in 1996. As with all these variants, it’s the same 454 cubic inch (7.4L) engine with a cast iron block and 4.25″x4.0″ bore and stroke. The Vortec 7400 uses hydraulic roller cams and more advanced technology. One such ...
Machining the bore further into the block caused a lack of material between the main cap bolt holes and the cylinder walls. The main bearing web in the block was prone to cracking. That made these engines poor candidates for big performance upgrades. The Duramax engine is much more capable ...