Starting an FJ55 3fe swap this weekend.

[Living in the Past]

A 2fe has a 2f shortblock with a 3fe head. You get higher compression and fuel injection. A 2f with sniper and timing control would be better if you bumped up the compression ratio of the 2f. Although the 3fe has nice manifolds too.

Because the early 2F which I have has domed pistons I was wondering if there was clearance issue with the 3F head? The 8/80+ 2F and 3F have flat pistons.

I do like the exhaust on the 3FE. I got the two first header pipes with a 02 sensors. Not sure if those are needed. Because I have the complete 3FE air cleaner to exhaust plus wiring and ECU would probably be a cheaper conversion.

 

[Jim S.]

My 2FE has an 83 short block. I might try wrapping the headers as they throw off a lot of heat. Good luck with your project.

 

[Ry24000]

Nope. I'm pretty sure that there is less room in front of a 2F in a 55 than a 40, probably a 60/62 as well. I can't fit a fanclutch in my 55 with an original waterpump. I've heard of a later model waterpump that's shorter and will fit a fanclutch...

Yeah I think it can be done with the proper combination water pump, clutch, and fan. I inquired about it once with Cruiser outfitters. I was told to take a measurement from the block to the radiator. I changed my water pump last summer and forgot to measure. oops