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.
The Chrysler Town & Country is basically a rebadged Dodge Grand Caravan with some added tech and comfort. Even in its lowest trim level, the Town & Country offers more refinement than a Dodge Grand Caravan. Still, as used minivans go, there are better models on the market today.
This crate engine is hand-assembled in its own special facility, presumably so as to not risk contamination by one of those plebian engines we saw earlier. Gone are the days of solid lifters and cast-iron heads this beast combines an LSX cast-iron block, LS7/Z06 aluminum heads, forged steel crank and rods, forged aluminum pistons, hydraulic roller cams, and 10.2:1 compression.
Ford’s Special Vehicles Team (SVT) went to work on the 5.8-liter small block V-8 and managed to squeeze 240 horsepower out of it. A lowered suspension, new shocks, anti-roll bars and 17-inch tires put that power to the road and made the Lighting a great handling truck in addition to being a speed demon. The Lightning cranked up to 60 mph in 7.2 seconds and blazed through the quarter mile in 15.6 seconds. The biggest complaint about the Lightning was that it gulped down gasoline.
Across North American, used minivans have become a ubiquitous tool for busy parents, small delivery companies, and school systems. We say used minivans because of the rising cost of buying a new vehicle of any kind. Because of their utility and generally well appointed interiors, the minivan class seems to be increasing in cost faster than many other car groups. That leaves savvy buyers looking for used minivans in larger numbers.
Let’s start with the 9.1:1 compression, which means you can run this on pump gas. Add in a cast aluminum block, titanium valves, and a forged steel crank attached to forged titanium rods attached to forged aluminum pistons. Top that off with hydraulic roller cams, aluminum heads, and a high-helix supercharger pushing 10.5psi of boost.
As if that wasn’t enough, GM then throws on a gargantuan 2.9-liter Whipple supercharger pushing a full 16 PSI of boost. All of that cast iron and forging means strength, and the COPO 350 can set dragstrip records day in and day out without breaking a sweat.
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.