Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: BIGDRY on May 30, 2018, 03:37:55 PM

Title: 4.0 engine into 4.2 cj7...
Post by: BIGDRY on May 30, 2018, 03:37:55 PM

OK i know there are a million US threads on this, but has anyone here in UK actually put a 4.0 from a later jeep into a 4.2 cj7?

My cj7 has a freshly rebuilt t176 4 speed that im pretty sure will bolt straight up to later 4.0 engine, can anyone actually confirm?

cheers

Title: Re: 4.0 engine into 4.2 cj7...
Post by: Delk on June 04, 2018, 01:06:34 PM

The mounting is all the same so it will physically bolt directly in. I have not done the swap but the 4.0 is a much better unit with the fuel injection. The only thing I can think of is the crank position sensor. The 4.0 flywheel and bell housing on the trans are set up for the sensor. You can get a relocation kit easily enough where it is moved to the front damper.

Title: Re: 4.0 engine into 4.2 cj7...
Post by: JamesH on June 05, 2018, 09:48:08 PM

http://www.fourwheeler.com/how-to/engine/1608-swapping-4-0l-into-a-cj-7/?sm_id=organic_fb_FWN_trueanthem&utm_campaign=&utm_content=5b16511b04d3013239165e46&utm_medium=&utm_source=
 (http://www.fourwheeler.com/how-to/engine/1608-swapping-4-0l-into-a-cj-7/?sm_id=organic_fb_FWN_trueanthem&utm_campaign=&utm_content=5b16511b04d3013239165e46&utm_medium=&utm_source=)