SHOULD BE, BUT YOU CAN CHECK YOUR LOCAL JUNK YARD FOR VEHICLES TO ASK THEM IF THEY INTERCHANGE, I AM SURE THEY WILL.
I remember the mid 70's Jeep had a 6 cylinder 258
Both the 258 and the 4.0 are the same size externally.
Should be the 258 cid I6
Autolite 258
The power of the engine of the jeep wagoneer 8cyl 1964 is 140 HP
Jeep 258 engine block casting number.
With the 232 ci engine, 100 HP.With the 258 ci engine, 110 HP. With the 304 ci V8 engine, 150 HP. With the 360 ci V8 engine, 175 HP. With the 360-4 V8 engine, 220 HP. With the 401-4 V8 engine, 255 HP.
The 2007 Jeep Patriot's engine produces 172 hp @ 6000 rpm.
The 2005 Jeep Wrangler's engine produces 147 hp @ 5200 rpm.
The 2002 Jeep Wrangler's engine produces 120 hp @ 5400 rpm.
The 2014 Jeep Compass's engine produces 158 hp @ 6400 rpm.