- Chevrolet Performance 6.2L LS3 Engine Crate GM is the best overall.
- Genuine GM 350i / 5.7L Gen 0 Engine is the best value engine.
- Genuine GM Economy Performance Engine as honorable position.
Best Overall: Chevrolet Performance 6.2L LS3 Engine Crate GM, General Motors is well known for its creation of powerful vehicles, and its small-block crate engine design is no joke as a racing engine. This aggressive LS3 6.2L engine comes with an impressive 525 horsepower.
GM recommends that the rods, camshaft, lifters and valve springs be replaced after two years or 300 hours of use. The current tracks that are using crate engines find most teams elect to get a replacement engine after the second year. Three years to make crate engine for others competitors.
This universal 350 engine uses a fresh block and may be a replacement in most 1973-85 GM vehicles and retrofitted into virtually any vehicle. At a base power of 195 hp, the engine can produce up to 260 HP and 350 ft/lbs torque with a 4-bbl carburetor and headers.
GM crate motors are good solid engines by and large. Pricey, but with a warranty and they’re built from all new parts. The one glaring omission in their small block line is that Not a Single one comes with forged Pistons.
A typical 350 Chevy can make upwards of 350 – 375 HP before you exceed the reliability of the components. For an enormous block with an equivalent stock components it can make within the area of about 400 to 475 approximately HP and handle upwards of about 500 HP before you exceed the reliability of the stock cast pistons.
The Vortec combustion chamber may be a kidney-shaped design that promotes better combustion and can have the sparking plug located near the middle of the chamber. The regular Chevy 350 head utilizes a 90 degree intake bolt angle while the Vortec makes do with a 72 degree bolt angle.
The LS1 was initially introduced within the 1997 Chevrolet Corvette C5, during which it had been rated at 345 horsepower (257 kW) at 5,600 rpm and 350 pound-feet of torque (470 Nm) at 4,400 rpm.
The supercharged 650 horsepower LT4 6.2 L V8 was the most powerful production car engine ever from General Motors when it was installed in the 2015 Corvette Z06.
A good thing for engine swaps, the 350 is very easily modded because of the abundance of aftermarket parts. And because so many Chevy 350s have been produced, they’re affordable and easily attainable for swaps of all kinds. You can find a Chevrolet 350 in just about anything—on land, sea, or air