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Old 11-01-2012, 05:29 PM   #1
copterav8r
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Re: Finally starting my Longhorn 4x4 conversion

This is a bit off-topic, I agree that the Corvette with a Cummins is cool, but I think that an old Hudson pickup with a Cummins 6BT 12 valve would make an awesome drag racer. Perhaps one like this one from ebay:

http://cgi.ebay.com/ebaymotors/BIG-B...e#ht_500wt_975
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Old 11-01-2012, 08:34 PM   #2
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Re: Finally starting my Longhorn 4x4 conversion

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Originally Posted by Dieselwrencher View Post
Thanks for posting that pic Josh!

Ryan, that's a sweet rig! I never got into Jeeps and such. If I kept hanging around with the mud and rock climbers, I had the notion at one time though.
Thanks.

i want to build a street rod, but these damn 4x4s just keep finding me....
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Old 11-01-2012, 10:54 PM   #3
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Re: Finally starting my Longhorn 4x4 conversion

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Thanks for posting that pic Josh!

Ryan, that's a sweet rig! I never got into Jeeps and such. If I kept hanging around with the mud and rock climbers, I had the notion at one time though.
We went to Harlan on the 19th. There was a Dodge 2500 12V that had the frame chopped, truggied, running rockwells and 49's. I was drooling and literally almost ran off the trail.
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Old 11-05-2012, 04:30 PM   #4
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Re: Finally starting my Longhorn 4x4 conversion

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Thanks.

i want to build a street rod, but these damn 4x4s just keep finding me....
I want to put a cummins in my 40 ford, but I have a Hemi for it. I keep going back and forth between the cummins and the Hemi. I've decided to leave it a gasser so I have one thing to burn gas.

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We went to Harlan on the 19th. There was a Dodge 2500 12V that had the frame chopped, truggied, running rockwells and 49's. I was drooling and literally almost ran off the trail.
That sounds awesome!
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1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread
1972 GMC Sierra Grande Longhorn 4x4
1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed
1972 C10 Suburban Custom Deluxe
1969 Chevy milk truck
1971 Camaro RS 5.3 BTR STG3 Cam Super T10
1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project


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Old 11-05-2012, 05:04 PM   #5
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Re: Finally starting my Longhorn 4x4 conversion

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I want to put a cummins in my 40 ford, but I have a Hemi for it. I keep going back and forth between the cummins and the Hemi. I've decided to leave it a gasser so I have one thing to burn gas.
What size Hemi? Either way it would be awesome.
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Old 11-05-2012, 05:05 PM   #6
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Re: Finally starting my Longhorn 4x4 conversion

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What size Hemi? Either way it would be awesome.
354 4bbl
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1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread
1972 GMC Sierra Grande Longhorn 4x4
1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed
1972 C10 Suburban Custom Deluxe
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1971 Camaro RS 5.3 BTR STG3 Cam Super T10
1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project


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Old 11-02-2012, 10:02 AM   #7
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Re: Finally starting my Longhorn 4x4 conversion

Where do you pick up a tach that is ran by mechanical tach thing?
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Old 11-02-2012, 02:25 PM   #8
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Re: Finally starting my Longhorn 4x4 conversion

The 67-72 medium duty Diesel tachs were mechanical.
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Old 11-05-2012, 04:27 PM   #9
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Re: Finally starting my Longhorn 4x4 conversion

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The 67-72 medium duty Diesel tachs were mechanical.
I've seen some mechanical diesel tachs in 73-80 C50's and 60's. I'm trying to locate one for the 76.
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1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread
1972 GMC Sierra Grande Longhorn 4x4
1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed
1972 C10 Suburban Custom Deluxe
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1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project


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Old 11-05-2012, 04:42 PM   #10
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Re: Finally starting my Longhorn 4x4 conversion

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I've seen some mechanical diesel tachs in 73-80 C50's and 60's. I'm trying to locate one for the 76.
Hmm... well that's good to know, that's the first time ive heard any mention of a mech version. I'll have to keep an eye out for one. Do they look the same as the C/K trucks?
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Old 11-05-2012, 04:45 PM   #11
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Re: Finally starting my Longhorn 4x4 conversion

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Hmm... well that's good to know, that's the first time ive heard any mention of a mech version. I'll have to keep an eye out for one. Do they look the same as the C/K trucks?
Yes, but the fuel gauge is in the tach. I've only seen one in a yard and the guy wouldn't sell it.
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1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread
1972 GMC Sierra Grande Longhorn 4x4
1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed
1972 C10 Suburban Custom Deluxe
1969 Chevy milk truck
1971 Camaro RS 5.3 BTR STG3 Cam Super T10
1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project


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Old 11-02-2012, 10:52 PM   #12
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Re: Finally starting my Longhorn 4x4 conversion

Whats your fastest 1/4 with the vette?
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Old 11-05-2012, 04:28 PM   #13
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Re: Finally starting my Longhorn 4x4 conversion

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Whats your fastest 1/4 with the vette?
11.43@125mph Fastest ET

11.57@130mph Fastest MPH

Once we get the trans fixed we hope to be in the 10's.
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1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread
1972 GMC Sierra Grande Longhorn 4x4
1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed
1972 C10 Suburban Custom Deluxe
1969 Chevy milk truck
1971 Camaro RS 5.3 BTR STG3 Cam Super T10
1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project


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Old 11-05-2012, 11:21 PM   #14
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Re: Finally starting my Longhorn 4x4 conversion

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11.43@125mph Fastest ET

11.57@130mph Fastest MPH

Once we get the trans fixed we hope to be in the 9's.
Fixed it for you...
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Old 11-08-2012, 09:13 PM   #15
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Re: Finally starting my Longhorn 4x4 conversion

I love the work man! Keep it up, im thinkin about goin with a 12 valve cummins in my 1972 short-wide 4x4, but thats probably a long ways off though... How much power are you plannin on producin out of your motor? Thanks in advance!
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Old 11-08-2012, 11:33 PM   #16
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Re: Finally starting my Longhorn 4x4 conversion

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I love the work man! Keep it up, im thinkin about goin with a 12 valve cummins in my 1972 short-wide 4x4, but thats probably a long ways off though... How much power are you plannin on producin out of your motor? Thanks in advance!
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Thanks. It should make 550-600Hp easily. I probably won't push it super hard to try to get max HP. It probably can do 675hp with the air and fueling it'll have. The injection pump will be the limiting factor I think. I don't want to have to yank the engine out and rebuild it right out of the gate, so I'll keep it conservative.
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1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread
1972 GMC Sierra Grande Longhorn 4x4
1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed
1972 C10 Suburban Custom Deluxe
1969 Chevy milk truck
1971 Camaro RS 5.3 BTR STG3 Cam Super T10
1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project


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Old 11-09-2012, 12:32 AM   #17
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Re: Finally starting my Longhorn 4x4 conversion

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Thanks. It should make 550-600Hp easily.
You suck man.
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Old 11-09-2012, 04:24 PM   #18
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Re: Finally starting my Longhorn 4x4 conversion

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You suck man.
I can set you up with one.
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1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread
1972 GMC Sierra Grande Longhorn 4x4
1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed
1972 C10 Suburban Custom Deluxe
1969 Chevy milk truck
1971 Camaro RS 5.3 BTR STG3 Cam Super T10
1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project


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Old 11-12-2012, 03:13 PM   #19
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Re: Finally starting my Longhorn 4x4 conversion

This things gonna be bad! its been inspirational for my swb 12v/nv4500 build. Does the intercooler piping clear between the inner fenders and battery box fine? ive been debating running my 2nd gen intercooler flipped upside down and relocating batterys.
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Old 11-12-2012, 03:14 PM   #20
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Re: Finally starting my Longhorn 4x4 conversion

Also does your hood latch clear ok? im having a tough time squeezing the 2nd gen intercooler between frame rails and under hood latch.
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Old 11-12-2012, 03:54 PM   #21
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Re: Finally starting my Longhorn 4x4 conversion

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This things gonna be bad! its been inspirational for my swb 12v/nv4500 build. Does the intercooler piping clear between the inner fenders and battery box fine? ive been debating running my 2nd gen intercooler flipped upside down and relocating batterys.
The piping clears the battery trays, but I had to trim the inner fender on the driver's side for the intercooler piping to clear.

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Also does your hood latch clear ok? im having a tough time squeezing the 2nd gen intercooler between frame rails and under hood latch.
My hood latch will clear after I modify it. I have to cut it and move it 3/4" of an inch and do the same to the hood guide pin and it will work fine.
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1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread
1972 GMC Sierra Grande Longhorn 4x4
1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed
1972 C10 Suburban Custom Deluxe
1969 Chevy milk truck
1971 Camaro RS 5.3 BTR STG3 Cam Super T10
1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project


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Old 11-12-2012, 04:27 PM   #22
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Re: Finally starting my Longhorn 4x4 conversion

Thats what I fugured... Im thinking about running the intercooler oposite of yours and mounting the batterys under the bed.

For fitting it ill either run a 1" body or trim an inch off the intercooler... I hadnt really thought about modifying the latch so ill be excited to see that!

Have you ran exhaust yet? Its gonna be interesting to get mine past the tcase.
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Old 11-12-2012, 04:29 PM   #23
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Re: Finally starting my Longhorn 4x4 conversion

Yep, I have 4" over the trans cross member and 5" on back. I got 4" all the way through on the 88 burb I'm doing, so it can be done.
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1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread
1972 GMC Sierra Grande Longhorn 4x4
1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed
1972 C10 Suburban Custom Deluxe
1969 Chevy milk truck
1971 Camaro RS 5.3 BTR STG3 Cam Super T10
1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project


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Old 11-13-2012, 12:02 AM   #24
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Re: Finally starting my Longhorn 4x4 conversion

We'll hope so! what radiator are you running? Any pics of clutch linkage? and hydra boost linkage?
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Old 11-13-2012, 04:19 PM   #25
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Re: Finally starting my Longhorn 4x4 conversion

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We'll hope so! what radiator are you running? Any pics of clutch linkage? and hydra boost linkage?
I used a stock BBC radiator for this truck. I can get you a pic of the clutch pedal set up. It was a PITA to figure out and get the rod to travel straight when the pedal moves in an arc. I'll have to remove the linkage for the hydra boost to get a pic of it. When I do I'll get a pic of it.
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1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread
1972 GMC Sierra Grande Longhorn 4x4
1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed
1972 C10 Suburban Custom Deluxe
1969 Chevy milk truck
1971 Camaro RS 5.3 BTR STG3 Cam Super T10
1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project


Tired of spark plugs? Check this out.
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