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06-18-2014, 06:05 PM | #1 |
Registered User
Join Date: Apr 2014
Location: springfield mo
Posts: 4
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need help with big block motor swap
hey guys i have a 72 long bed, it had a small block 350 in it. I got a great deal on a big block. My few questions i have is. Will i have any clearance issues where the current small block set compared to the big block. Also will the stock small block frame mounts work? it looks like they will but i am not sure. I am running headers so there shouldn't be any frame issues i would guess. My other question is will i have to move the motor back possible to have room up front since the motor has a long water pump, my small block had a long water pump and i have just enough room for ele. fan to water pump pulley. Any help would be awesome as i have tried looking and have no got to much help or answers to my questions.
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06-18-2014, 08:09 PM | #2 |
Registered User
Join Date: Oct 2008
Location: Marianna Arkansas
Posts: 7,280
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Re: need help with big block motor swap
Welcome to the site and congrats on the truck. Yeah your gonna need the big block mounts and lucky you they are 72 only!! The truck should have short water pump, of course it could have been changed. The clearance issues arise around the edge of the frame and the exhaust. Look in the parts for sale section and find what you need there. There are often guys junking out some 3/4 ton trucks that have had the big's in them.If being original looking is not a problem with you go to the upper left hand corner of the home page and click on the section marked tech tips for the 67-72, there is a post in there about the installation of later model[73 and newer] type clam shell mounts for the most inexpensive way to install the RAT motor in the truck. Jim
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06-25-2014, 12:09 PM | #3 |
Registered User
Join Date: Apr 2014
Location: springfield mo
Posts: 4
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Re: need help with big block motor swap
thank you for the info. I am going to read up and start the install of my big block.
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06-25-2014, 01:14 PM | #4 | |
Account Suspended
Join Date: Jan 2007
Location: Tucson
Posts: 2,183
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Re: need help with big block motor swap
Quote:
http://www.faxonautoliterature.com/S...manual&c=35087 There's a lot of bad information about this swap and going back to the book the guys who built your truck used to put it together is the very best source. The $40.00 you spend on it could actually save you $100.00s |
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06-25-2014, 02:03 PM | #5 |
Registered User
Join Date: Apr 2014
Location: springfield mo
Posts: 4
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Re: need help with big block motor swap
wow thanks man i have been wanting to get a manual on my truck but had never seen a good one to get thanks for the info.
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