What is a 258 engine?
The 258 cu in (4.2 L) was produced from 1971 to 1990. It featured an undersquare 3.75 in (95.3 mm) bore and 3.895 in (98.9 mm) stroke; it was otherwise similar to the 199 and 232. Starting with the 1975 model year, the bore of this engine was decreased to 3.819 in (97.0 mm).
Is the AMC 4.2 a good engine?
The 4.2 is a solid engine as well and as you said at a less horse power than the 4.0. The number of miles the engine can get on it is based on proper service on both models. The major difference between the two is the 4.2 is carbureted and the 4.0 is fuel injected.
Did Jeep make a 4.2 liter engine?
AMC JEEP 4.0/4.2L & 258 ENGINE.
How much horsepower does a 258 inline 6 have?
The 258 has a cast iron block and cylinder head, hydraulic lifters (with non-adjustable rockers), 7 main bearings, and cast iron crankshaft and rods. The 258 I6 engine was always carbureted from the factory….
| AMC 258 I6 | |
|---|---|
| Displacement | 258 (4.2L) |
| Compression Ratio | 8.5:1 |
| Horsepower (gross) | 150@3800 |
| Torque (gross) | 240@1800 |
What year did Jeep stop using inline 6?
2006
Over the course of nearly 20 years this engine was refined and tweaked before being phased out in 2006. The inline six has powered Cherokees, Grand Cherokees, Wagoneers, Wranglers, and even Comanches.
Is the 258 inline 6 a good engine?
The great thing about this engine is it reliable, inexpensive, and has horse power and torque peaks at low RPM. The 258 has a cast iron block and cylinder head, hydraulic lifters (with non-adjustable rockers), 7 main bearings, and cast iron crankshaft and rods. The 258 I6 engine was always carbureted from the factory.
Did Jeep ever use Ford engines?
Bantam used a 112-cubic-inch engine made by the Continental Motor Company, Ford used its own 119-cubic-inch engine that it made for Ford tractors, and Willys made its own 139-cubic-inch engine….Ford Motor Company Jeeps in WWII by plant.
| Ford Motor Company Jeeps in WWII by plant | |
|---|---|
| Lousville | 93,364 |
| Richmond | 49,359 |
Is the Jeep 4.0 a V6?
Unfortunately, the AMC 4.0L inline six was replaced by the 3.8 OHV V6, which originated in Chrysler minivans.
What Jeeps have straight-6?
AMC/Chrysler/Jeep 4.0L straight-6 engines are in the following years and models:
- 1987-2001 Jeep Cherokee.
- 1993-2004 Jeep Grand Cherokee.
- 1987-1990 Jeep Wagoneer.
- 1987-1992 Jeep Comanche.
- 1991-2006 Jeep Wrangler.
What Jeeps had the inline-6?
The inline six has powered Cherokees, Grand Cherokees, Wagoneers, Wranglers, and even Comanches. We think its best known for its time with the Cherokee, but it remains a major selling point no matter what it’s been dropped in.