my bbc cj project - Page 16 - JeepForum.com

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post #226 of 260 Old 09-12-2013, 09:21 AM
Blown7
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Originally Posted by kw89425 View Post
Its a good transmission mine would be better with a automatic and some stall to soften the big cam
I have a TH400 behind 900 HP in a CJ7 and if I were to do it all again I would seriously consider a 4L80 just because a overdrive and lock up is all the better

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post #227 of 260 Old 09-12-2013, 09:25 AM
Blakescj7
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I'm running a th400 also. I like the older transmissions just because they are simple to work on and don't require a control module. Although overdrive would be an excellent commodity
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post #228 of 260 Old 09-12-2013, 09:29 AM Thread Starter
kw89425
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I like the simplicity of the th400 and I dont need overdrive. I have 4.11 and 38.5's I could travel on the interstate if I wanted to.

86 cj7 496 powered 465/205 ton axles 38.5 boggers

http://www.jeepforum.com/forum/f8/my...oject-1019388/
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post #229 of 260 Old 09-12-2013, 09:32 AM
Blakescj7
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Looks like I need to study this thread. I'm close to dropping my 454 in.
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post #230 of 260 Old 09-12-2013, 09:47 AM Thread Starter
kw89425
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Originally Posted by Blakescj7 View Post
Looks like I need to study this thread. I'm close to dropping my 454 in.
Its really not much different than doing a sbc swap

86 cj7 496 powered 465/205 ton axles 38.5 boggers

http://www.jeepforum.com/forum/f8/my...oject-1019388/
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post #231 of 260 Old 09-12-2013, 10:06 AM
Blakescj7
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Originally Posted by kw89425 View Post

Its really not much different than doing a sbc swap
That's what I figured since the block isn't that different from a sbc. I have flowtech block huggers from holley on it an I've set the mounts off the dimension of the frame and I have plenty of header clearance it seems. We shall see when its d-day and I have to get it in there. I'm only worried about the power steering pump being a bit low next to the frame.
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post #232 of 260 Old 09-12-2013, 01:57 PM
AFRd_CJ5
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Quote:
Originally Posted by Blown7 View Post
I have a TH400 behind 900 HP in a CJ7 and if I were to do it all again I would seriously consider a 4L80 just because a overdrive and lock up is all the better
Sounds exactly like my setup, except mine is in a CJ5.
I too wish I would have thought about it and went with the 4L80

'76 CJ5
434 pump gas SBC with an NX/HVH plate system
th350/Coan 5,000 converter/Dana 300 tcase
Dana 30 front with 4.56's/Dana 44 rear with 4.88's
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post #233 of 260 Old 09-12-2013, 02:22 PM
Blakescj7
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Hey KW, I was looking back your pics when you mounted the engine in the frame and it looks like you mounted to bolts in the factory holes. My brackets are the weld in kind but I'm drilling them for bolts also. Did you use the factory mount holes any?
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post #234 of 260 Old 09-12-2013, 02:46 PM Thread Starter
kw89425
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Originally Posted by Blakescj7 View Post
Hey KW, I was looking back your pics when you mounted the engine in the frame and it looks like you mounted to bolts in the factory holes. My brackets are the weld in kind but I'm drilling them for bolts also. Did you use the factory mount holes any?
Sure did

86 cj7 496 powered 465/205 ton axles 38.5 boggers

http://www.jeepforum.com/forum/f8/my...oject-1019388/
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post #235 of 260 Old 09-12-2013, 02:57 PM
Blakescj7
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So you just lined the mounts up with the old mounts location? I'm using transdapt mounts
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post #236 of 260 Old 09-12-2013, 06:34 PM Thread Starter
kw89425
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Originally Posted by Blakescj7 View Post
So you just lined the mounts up with the old mounts location? I'm using transdapt mounts
No I set the engine where I wanted it then I drilled the holes in the mounts I bent some tubing to clear the pan an welded to the mounts to work kinda like a cross member

86 cj7 496 powered 465/205 ton axles 38.5 boggers

http://www.jeepforum.com/forum/f8/my...oject-1019388/
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post #237 of 260 Old 09-12-2013, 06:34 PM
papa355
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My wife and I recently drove to Tenn to visit my niece and see her new baby girl. On the way back thru Kentucky, we stopped and finally got to meet KW and his wife. Great people, can't wait to see them again. I got to ride in this BBC CJ, trust me, awesome power. Loved the visit and the ride Keith Taking my jeep to work this weekend to use the mig, and finish up the shocks and some other welding on it. Hope the next visit I have my jeep with me. til we meet again my friend

1977 CJ7, 360 AMC with HEI, TH400 quadratrac, dana30, AMC20, SOA, 35" M/T MTZ
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post #238 of 260 Old 09-12-2013, 08:56 PM Thread Starter
kw89425
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Originally Posted by papa355 View Post
My wife and I recently drove to Tenn to visit my niece and see her new baby girl. On the way back thru Kentucky, we stopped and finally got to meet KW and his wife. Great people, can't wait to see them again. I got to ride in this BBC CJ, trust me, awesome power. Loved the visit and the ride Keith Taking my jeep to work this weekend to use the mig, and finish up the shocks and some other welding on it. Hope the next visit I have my jeep with me. til we meet again my friend
Yeah it was good to meet you guys hope you get it finished soon so you can enjoy it. Im on my way to Tucson for monday.

86 cj7 496 powered 465/205 ton axles 38.5 boggers

http://www.jeepforum.com/forum/f8/my...oject-1019388/
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post #239 of 260 Old 09-12-2013, 10:10 PM
Blown7
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I like the simplicity of the th400 and I dont need overdrive. I have 4.11 and 38.5's I could travel on the interstate if I wanted to.
Well there is alot more to it than that...

First I want a looser Torque converter in the high 2.8K-3.2K stall range to get into the torque band at the stall off the line and allow for flash if necessary.

Better off the line launch..... Then there is highway speed where I regularly run 100+MPH in road race courses and want the low heat build up of a lock up converter.
As good as the TH400 is ... and I built mine with the best of the best...it can't do all that what A 4l80 will do without breaking a sweat

I have 3.73's and 35" Toyo's and I still want the engine running a lower RPM when my gas mileage is 6 miles to the gallon.
Right now I run out of redline RPM's and of axle gear at 135 MPH... I need OD
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post #240 of 260 Old 09-13-2013, 05:45 AM Thread Starter
kw89425
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Quote:
Originally Posted by Blown7 View Post

Well there is alot more to it than that...

First I want a looser Torque converter in the high 2.8K-3.2K stall range to get into the torque band at the stall off the line and allow for flash if necessary.

Better off the line launch..... Then there is highway speed where I regularly run 100+MPH in road race courses and want the low heat build up of a lock up converter.
As good as the TH400 is ... and I built mine with the best of the best...it can't do all that what A 4l80 will do without breaking a sweat

I have 3.73's and 35" Toyo's and I still want the engine running a lower RPM when my gas mileage is 6 miles to the gallon.
Right now I run out of redline RPM's and of axle gear at 135 MPH... I need OD
You the man

86 cj7 496 powered 465/205 ton axles 38.5 boggers

http://www.jeepforum.com/forum/f8/my...oject-1019388/
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