v6 or 134

Is it worth swapping in a v6. I have a 1958 cj-5 with an f-head and it also has an overdrive it seem like it would be great with a litle bit more power. I have a parts jeep it is a 1970 cj-5 with a v6 the tranny is stuck in gear it has no body or anything just the driveline. Is it worth messing with or should I just be happy with my f-head.:?

 

:v6:

 

I geuss I would be happy with about 30 more HP

 

I am in the process of doing a buick 231 v6 swap from the F134 in my 61 cj5. I have found that there are quite a few modifications required, but it has been fun. Some of the mods I should mention are; you will need to cut 2 inches off of the passenger side of the transmission cross member and weld it onto the driver's side because you will need to shift everything approx. 2 inches to the right. The radiator needs to be bigger to cool the extra cubes in engine size. I was lucky enough to find a doner with all the parts I needed to do the swap. I also purchased items from Novak (longer input shaft for the T-90, and T-90 rebuild kit and motor mounts). Novak has a detailed description on their website that explains how to do the swap. I found their technical instructions easy to understand and follow. My swap is not yet finished yet but, I am looking forward to the results. I plan to use this jeep for a daily driver and wanted the extra horses. I would greatly encourage anyone to do this swap but, be prepared that more is involed than just trading engines. In the long run, I think it will be well worth it. If you have further questions, let me know. Good luck!

cw pup

 

I'm doing just that, only my doner was is a '66. It's really nice to have a doner, I used the stock v6 mounts, and cross member etc. My '66 frame and body where shot. How bad is the frame on the 70? That should have the flanged axle in ther rear Why not use the '70 frame, swap in a 4 speed ( that way you can use your 58 transfercase and overdrive), painting up the frame etc and droping your 58 body on? R) Your curent overdrive won't work with a t14 trans. in your '70

 

we never had daunless Jeeps in Australia. double the horsepower would be nice but i'll be sticking with the F head.
i'll buy you OD if you do swap but

 

2x's the HP and torque and it weighs the same or slightly less! I love my conversion.

 

It does weigh less, Sounds absolutly amazing, and you can usually cool it with a 4 cyl radiator. Does the V6 need a rebuild? Mine ran amazing when I bought it. I'm going to keep it like it is, use money to replace other things, then rebuid the engine when it finally dies. Hopefully everything else will be done by then and the engine will be the last step.

 

I have the donor 70 sitting in the back yard I plan on using the flanged 44 when I get a locker I fugure the flange axle would be better suited for that. I just got my 58 on the road and started to drive it to work now and then and with that v6 sitting there it just got me thinking. Both my frames are in very good shape would I have to use the other crossmember and if I did would that not change the shifter location. I was just thinking I would just have to change motor mounts and get an adapter:?

 

doesn't seem like anyone sticks up for the little f-head anymore...

my daily driver is my '57 f-head powered cj5 stock with no OD, yeah it's pretty freakin slow but I don't mind. It's durable (not that the V6 isn't) and simple--but it gets the job done 365 days a year, no matter the condition.

 

My 13 yr old asks me last night " You've got the f-head Hurricane in the Jeep?" "Thats awesome!" Not only does he know what it is, he thinks its cool. How would he feel if I had to tell him my engine is "odd" Back on topic, I'd have to weigh my decision on how long I want my rig to be down. These type of projects always seem to get "mission creep" and B4 you know it its in the garage for years. If possible try and get a ride in an "odd" Jeep and see if it makes a noticeable difference to you.

 

I'll stick up for the F134 - a very cool and forgiving engine. They'll keep running for a long time, given half a chance.

Not enough power for the highway though, IMO. Wind resistance is a significant barrier, increasing like the square of the velocity. (The brakes are a problem too, but you knew that).

If it were me, I'd put the best pieces of the two vehicles together. Given a choice of the T-90 and the T-14, I'd probably choose the T-90. Others will disagree, but I think the T-14 2nd gear ratio is more of a disadvantage than non-synchro 1st. Actually, I'd most likely skip both and go with a 4-speed, or the T-15.

Up to you - I'd probably build the chassis and move the '58 body over. The only problem would be the frame and body SNs not matching, but I doubt anyone would ever check that.