Question on Motor swaps
Preacher Boy
Jeeper
- Posts
- 57
- Thanks
- 0
- Location
- Dallas, Or
- Vehicle(s)
- 1962-CJ6 (4 cylinder) Tranny a T-90 with a splitter and T-case is a DANA 18.
Question on Motor swaps
- Thread starter Preacher Boy
- Start date
BajaEdition
Resident 'Old' Jeep Shaman
- Posts
- 5,488
- Media
- 136
- Resources
- 2
- Thanks
- 5
- Location
- Riverside Ca
- Vehicle(s)
- 67 cj5,225 Dauntless, D30,chrome molies, detroit, D44, full floating detroit, custom steering, disc all the way around,2 inch lift on 31s, armored up
70 cj6 4 inch lift
Ok. First is you have a short nosed jeep, astrait 6 or v8 is a hard engine to get in there.
second, in 65 jeep started putting a buick 225 cid v6 in those shot jeeps. Finding one can be a direct bolt in with just motor mount swaps
Other than that the best bet is a later year Dauntless Buick 225 V6 with an adapter
Any proje t with a new tcase will mean a new rear axle for that jeep and once you swap the t case you will soon learn of thousands in adapters and driveshafts to be bought.
My advice is either finding the old Buick or a newer one.
second, in 65 jeep started putting a buick 225 cid v6 in those shot jeeps. Finding one can be a direct bolt in with just motor mount swaps
Other than that the best bet is a later year Dauntless Buick 225 V6 with an adapter
Any proje t with a new tcase will mean a new rear axle for that jeep and once you swap the t case you will soon learn of thousands in adapters and driveshafts to be bought.
My advice is either finding the old Buick or a newer one.
Saddle Tramp
Full Time Jeeper
- Posts
- 1,687
- Thanks
- 2
- Location
- Vancouver, USA
- Vehicle(s)
- 1978 CJ5, AMC 401, CJ T18, Scout Dana 300, 2-1/2" Lift, Locked
For my two cents, I would pass on stuffing a V8 in an early CJ of any flavor. This is from the been-there-done-that file. I did it in a CJ2a years ago and then proceeded to blow out the rest of the drive train except for the Spicer 18 Transfer Case one piece at a time and the extra weight of the V8 caused the frame to crack so I had to repair that too. I would look to the Buick 225 or a newer GM V6 as Baja suggested. The T-90 can be adapted to a GM bell housing. Try this: http://www.novak-adapt.com/catalog/kits_cx.htm
Preacher Boy
Jeeper
- Posts
- 57
- Thanks
- 0
- Location
- Dallas, Or
- Vehicle(s)
- 1962-CJ6 (4 cylinder) Tranny a T-90 with a splitter and T-case is a DANA 18.
Thanks I will start looking for a 225.
Preacher Boy
Jeeper
- Posts
- 57
- Thanks
- 0
- Location
- Dallas, Or
- Vehicle(s)
- 1962-CJ6 (4 cylinder) Tranny a T-90 with a splitter and T-case is a DANA 18.
I have been unsuccessfull in locating the 225 but have been able to find a few of the straight 6 (AMC 232 i6 and AMC 258 i6 / 4.2l ). Are these impossible to fit in or just harder than the 225? Would I have to do alot of fabricating to make it work? I've heard the straight 6 is a better engine and longer lasting then the v6? Your thoughts?
IOPort51
NOT the voice of reason Jeep-CJ.com
- Posts
- 13,959
- Media
- 422
- Thanks
- 11
- Location
- Garland Texas
- Vehicle(s)
- 1977 cj-5
4.2 W/MC2100 carb, 4.0 head W/3 angle valves,SS Header,TFI ignition with MSB-6 offroad module,CS144 140 amp RPS alternator with remote regulator T-150,d-20,Dana 44 with OX lock and disk brakes. D-30 with Spartin locker,
skyjacker 2.5 lift?nitro shocks,31" BFG A/T off road.8000 lb Warn winch, original owner.=^)
2006 Toyota Tacoma
There is one more option, I know it sounds crazy, you could rebuild the 4 banger. A fresh rebuilt motor can't help but be stronger than an old tired one, you may be surprised. A cheried out 62 CJ6 would be well worth the effort and would have enough value in the right circles you could trade up for the horse power of your dreams.
I am a bit of a purest, to be sure, but you have to ask yourself as the owner of a machine that has not only survived for 50 years but still is capable of moving under its own power, " can I re engineer this entire drive train and do better than what I have?". Seems to me they pretty much got it right the first time, it just needs a little TLC.
I am a bit of a purest, to be sure, but you have to ask yourself as the owner of a machine that has not only survived for 50 years but still is capable of moving under its own power, " can I re engineer this entire drive train and do better than what I have?". Seems to me they pretty much got it right the first time, it just needs a little TLC.
hagar
Old Time Jeeper
- Posts
- 1,172
- Thanks
- 5
- Location
- Riverside CA
- Vehicle(s)
- 47 CJ2A
225V6
SM420
D18 w/Warn overdrive
D30 5:38 Power Lok
D44 5:38 Flanged Detroit Locker
the v6 swap is more than just motor mounts FYI......
BajaEdition
Resident 'Old' Jeep Shaman
- Posts
- 5,488
- Media
- 136
- Resources
- 2
- Thanks
- 5
- Location
- Riverside Ca
- Vehicle(s)
- 67 cj5,225 Dauntless, D30,chrome molies, detroit, D44, full floating detroit, custom steering, disc all the way around,2 inch lift on 31s, armored up
70 cj6 4 inch lift
the reason Jeep went to theV6 was because a strait 6 was to long to fit in there with out compromise.
look for a newer Dauntless Buick 225 V6
gone2hatteras
Jeeper
- Posts
- 94
- Media
- 15
- Thanks
- 0
- Location
- Northeast North Carolina
- Vehicle(s)
- 1983 CJ7 258cid. T5 trams. 3.31 w/limited slip Dana 44 rear.
A second choice to the Buick 225/231 would be a Chevy 4.3. You also have the choice of carb or fuel injection. Also a 4.3 would most likely be easier to find. If your CJ6 is in good shape you would be better off rebuilding the 4 cylinder. A blue printed and balanced 134 would provide you with a very workable drivetrain for alot less pain and suffering of an engine swap.
Last edited:
AussieCJ7
Active Jeeper
- Posts
- 251
- Thanks
- 0
- Location
- Australia
- Vehicle(s)
- 1983 CJ7 Australian delivered RHD wide track, orginally GM iron duke 4cyl, T5, Dana 300. For now see mods :)
Not impossible to fit a straight six, in Australia short nose CJ6 were factory sold under the name of combat six they had ford 170 straight sixes in them but in order to do this they had to cut the firewall and box it in the engine finished about were the dash goes
Preacher Boy
Jeeper
- Posts
- 57
- Thanks
- 0
- Location
- Dallas, Or
- Vehicle(s)
- 1962-CJ6 (4 cylinder) Tranny a T-90 with a splitter and T-case is a DANA 18.
Thanks to all. The more I have been thinking about it. I think with a rebuild the 134 might be strong enough to do what I am wanting. I also have a splitter so I can split every gear which gives me a little bit better power control. Anybody have a guess at what the Horsepower should be with the 134?
LASTCJ786
Senior Jeeper
- Posts
- 525
- Thanks
- 0
- Location
- Mass
- Vehicle(s)
- 86 CJ7 258, T18, Scout 300,twinstick ,Dana 44 front locker, Dana 44 rear locker 3:73's,4"lift ,1" body. 35" tires,York OBA,Warn 8274,Fullcage.
I had a 71 CJ5 with the factory Dauntless Buick 225 V6 225 I blew it up. It was a odd fire
I dropped in a 231 even fire Dauntless Buick 225 V6 and all i had to do was rebalence the flywheel. fits in there real nice!
I dropped in a 231 even fire Dauntless Buick 225 V6 and all i had to do was rebalence the flywheel. fits in there real nice!