They’re even saying it will beat the old ZR1’s Nurburgring lap by a full 20 seconds. And if the current GM Performance Catalog is any indicator, in a few short years you’ll be able to stuff either one of those engines into your grandma’s old woody wagon. What a time to be alive
In fact, at highway speeds, the Grand Caravan is one of the noisiest used minivans around. The engine and transmission noise in the cabin can drive you insane if you ride long enough. When you throw in the wind and road noise that join the cacophony, you can see why this used minivan should never leave town.
“Quite simply, the LSX454R drag racing engine is the most powerful GM crate engine ever from Chevrolet Performance and it’s designed to do one thing: help you win races with great durability.” “Engineers simulated 600 back-to-back drag strip passes on the engine dyno, ensuring it would stand up to years of performance without the need for major maintenance, round after round, season after season.”
Enter the LT4 crate engine. Power comes on fast: a 1.7-liter Eaton supercharger spins at 20,000 rpm to force 9 pounds of boost into this 6.2-liter engine. That results in the same 650 horsepower and 650 torques you’ll find in the Z06 that’s sitting over at your local dealership, but for a fraction of the price.
Plus, Chevrolet Performance Crate Engines include a 24-month or 50,000-mile limited warranty. That’s right, most of the GM crate engines you’re about to see carry a factory warranty, so hoon away. These are the big things, but there are many other parts that may or may not be included with your specific crate motor check with your provider for more details.
A big block has higher weight and density in the block, as well as larger valve bores, a longer stroke, and a generally larger exterior size. A big block can have the same displacement as a small block, but only the most extreme small blocks encroach on this territory.
GM crate engines can usually be ordered through your local GM dealership. You might see online retailers like JEGS or Crate Engine Depot offer these engines, but they’re almost always asking the same price as Chevrolet themselves. We’ve found the Gandrud Auto Group’s GM Performance Motor website is the best resource around. Please note, we are not responsible for large amounts of hours lost while browsing crate engines.
It also favors a hydraulic roller camshaft instead of the original’s flat-tappet cam. It makes a few extra ponies over the old model, too: 480 horsepower and 490 lb-ft of torque will melt any tires this engine’s hooked up to.