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#1 |
Registered User
![]() Join Date: Jul 2012
Location: St. John, Washington
Posts: 618
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Belts and Pulleys - Adding A/C to Big Block 4x4.
I am adding A/C to my '72 4x4. Its currently got a 396, and after running the numbers it comes back as a 66 325hp from an impala/chevelle.
Pictured is my current pulley setup. Im guessing it all will need changed? From what i have seen in pictures is that the A/C Compressor will go right where my alternator currently is. Can you guys point me in the direction of what i need to do to add an A/C COmpressor to this setup? Im new to building somthing like this and have no idea where to start. Thanks!
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"Rusty" 1972 K20 Cheyenne Super, 496, A/C, Tilt, Tach, Buckets, 4l80e/NP205, 4" Rancho Lift, 35" BFG AT "Ramp Truck" 1972 C30 Ramp Truck 350, Air Bags, Factory A/C. "1968" C10 Shortbed project |
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#2 |
Roadtrip!
![]() Join Date: Feb 2003
Location: Grand Rapids MN
Posts: 13,736
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Re: Belts and Pulleys - Adding A/C to Big Block 4x4.
Looks like you have a newer long water pump set up. If you want it to look correct you will need to find the short water pump setup which will move the alt to the driver side and A/C to the pass side. Not real easy to find brackets, but not tough either. Not cheap however. It will also change your power steering setup.
__________________
67 gmc custom lwb dakota truck. Sold...And bought back 69 swb 4x4 project (in progress) 70 c-10 lwb texas truck 70 4x4/BB/bkts/posi/tach(retired) 70 swb (wifes) 70 jimmy camper 71 K-5 factory 2wd 71 cheyenne 4x4/tach/posi/ plow rig 71 Cheyenne20 BB, buckets, tach, tilt, 4 speed 72 jimmy CST wyoming rig 72 jimmy Colorado rig 72 lifted texas 4x4 3/4 ton burb 65 fury conv. 383/auto 65 chrysler 300 "L" 413 auto |
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#3 | |
Registered User
![]() Join Date: Jul 2012
Location: St. John, Washington
Posts: 618
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Re: Belts and Pulleys - Adding A/C to Big Block 4x4.
Quote:
so I need all the brackets from a big block truck and a shorter water pump? and will I be able to use my power steering pump or does that need changed as well
__________________
"Rusty" 1972 K20 Cheyenne Super, 496, A/C, Tilt, Tach, Buckets, 4l80e/NP205, 4" Rancho Lift, 35" BFG AT "Ramp Truck" 1972 C30 Ramp Truck 350, Air Bags, Factory A/C. "1968" C10 Shortbed project |
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#4 |
Roadtrip!
![]() Join Date: Feb 2003
Location: Grand Rapids MN
Posts: 13,736
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Re: Belts and Pulleys - Adding A/C to Big Block 4x4.
I am not sure what it would take to make your current setup work. If you went to the short pump you would be changing everything on the front of the engine. Water pump, pullies and power steering included. Maybe someone knows a way to make your current setup work.
__________________
67 gmc custom lwb dakota truck. Sold...And bought back 69 swb 4x4 project (in progress) 70 c-10 lwb texas truck 70 4x4/BB/bkts/posi/tach(retired) 70 swb (wifes) 70 jimmy camper 71 K-5 factory 2wd 71 cheyenne 4x4/tach/posi/ plow rig 71 Cheyenne20 BB, buckets, tach, tilt, 4 speed 72 jimmy CST wyoming rig 72 jimmy Colorado rig 72 lifted texas 4x4 3/4 ton burb 65 fury conv. 383/auto 65 chrysler 300 "L" 413 auto |
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#5 |
Member #1049
Join Date: Jun 2000
Location: Troy Montana
Posts: 3,940
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Re: Belts and Pulleys - Adding A/C to Big Block 4x4.
If you would like to use all the stuff you currently have, just search for the compressor/hoses and brackets off any 73 to early 80's truck with a big block, they are pretty much all the same.
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#6 |
Registered User
![]() Join Date: Jul 2012
Location: St. John, Washington
Posts: 618
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Re: Belts and Pulleys - Adding A/C to Big Block 4x4.
will the ac compressor then mount on the drivers side? im just wondering if that will make the compressor hose routingna pain.
__________________
"Rusty" 1972 K20 Cheyenne Super, 496, A/C, Tilt, Tach, Buckets, 4l80e/NP205, 4" Rancho Lift, 35" BFG AT "Ramp Truck" 1972 C30 Ramp Truck 350, Air Bags, Factory A/C. "1968" C10 Shortbed project |
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#7 |
Member #1049
Join Date: Jun 2000
Location: Troy Montana
Posts: 3,940
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Re: Belts and Pulleys - Adding A/C to Big Block 4x4.
yes, it would mount on the drivers side and yes it will be a small challenge to route the hoses,
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