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09-01-2011, 07:15 PM
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#1 |
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Registered User
Join Date: Sep 2011
Location: san diego, ca.
Posts: 51
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big block conversion in my '72 k5
I will post some pics as soon as I take them.
I am in the process of putting a big block 402 into my '72 k5. we dropped it in the hole last weekend and last night and again this morning I finished cutting holes in the firewall for valve cover clearance (tall valve covers no less) well the big block fits in there kinda tight in spots but it fits. Next I need to mock up the headers and check for clearance with the frame and engine crossmember. should be fun.once that is done then comes fabricating a bracket to mount my hydraulic clutch slave cylinder to on the bell housing, once again fun stuff. I can't wait to get it buttoned up and fired up. motor is bored 30 over to 408 with the domed pistons, kinda aggressive cam, roller lifters,roller rockers,nice aluminum intake,headers to dual flowmasters. grunt grunt |
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09-01-2011, 08:41 PM
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#2 |
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Senior Member
 
Join Date: May 2006
Location: Philadelphia, Pa. 19454
Posts: 9,762
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Re: big block conversion in my '72 k5
Welcome to the boards....sounds cool! Im in, cant wait to see the pics
__________________
Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim |
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09-01-2011, 08:56 PM
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#3 |
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Registered User
Join Date: Sep 2011
Location: san diego, ca.
Posts: 51
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Re: big block conversion in my '72 k5
any idea how to post pictures ?
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09-01-2011, 10:46 PM
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#4 |
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Senior Member
Join Date: May 2006
Location: Philadelphia, Pa. 19454
Posts: 9,762
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Re: big block conversion in my '72 k5
Sorry bud, but you are asking the wrong guy. I am computer illerate...
All I know is that I go to photobucket, copy, and paste, and some how it magically appears in my thread Some one on here will come along and splain it to you
__________________
Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim |
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09-01-2011, 11:13 PM
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#5 |
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VA72C10
 
Join Date: Mar 2008
Location: Midlothian, VA
Posts: 25,267
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Re: big block conversion in my '72 k5
cool! Looking forward to it.
In regards to pictures, you can also use the member's gallery on this forum and link your pictures here.
__________________
Looking for a 67-72 swb or blazer project in or around VA. 
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09-02-2011, 04:19 PM
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#6 |
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Registered User
Join Date: Sep 2011
Location: san diego, ca.
Posts: 51
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Re: big block conversion in my '72 k5
I got to the point of uploading the pics then it told me they were too big...
help me I'm not that good with crap like that ??? |
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09-02-2011, 07:52 PM
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#7 |
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Registered User
Join Date: Sep 2010
Location: UP, Washington
Posts: 978
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Re: big block conversion in my '72 k5
Looking forward to the big block transformation.
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09-06-2011, 01:37 AM
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#8 |
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Registered User
Join Date: Sep 2011
Location: san diego, ca.
Posts: 51
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Re: big block conversion in my '72 k5
finally figured out how to post sum pics....
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09-06-2011, 01:39 AM
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#9 |
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Registered User
Join Date: Sep 2011
Location: san diego, ca.
Posts: 51
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Re: big block conversion in my '72 k5
here are some more, there might be a couple of duplicates but I am still new at this.
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09-06-2011, 01:41 AM
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#10 |
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Registered User
Join Date: Sep 2011
Location: san diego, ca.
Posts: 51
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Re: big block conversion in my '72 k5
the pic with the engine in the truck shows the rough holes in the firewall that I cut,
then below you can see the lockable storage drawer that I made for my guns and stuff... |
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09-06-2011, 01:42 AM
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#11 |
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Registered User
Join Date: Sep 2011
Location: san diego, ca.
Posts: 51
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Re: big block conversion in my '72 k5
more pics coming as I get more done, I need to clearance the frame and crossmember on drivers side to fit the headers.....
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09-06-2011, 01:45 AM
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#12 |
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Registered User
Join Date: Sep 2011
Location: san diego, ca.
Posts: 51
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Re: big block conversion in my '72 k5
the interior was in pretty good condition, just a couple of rust holes in the usual places... easily patched. I then coated the floor from firewall to tailgate with rustoleum truck bed coating, appllied with a coarse brush right out of the gallon can. that stuff covers great and doesn't dull like rattle can paint. I covered the bumpers with it also.
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09-06-2011, 11:26 AM
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#14 |
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Registered User
Join Date: Oct 2010
Location: Salisbury,NC
Posts: 57
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Re: big block conversion in my '72 k5
Let me know about your headers because I'm being ready to drop a454 in my 1970 K5. What tranny you going to use?
Posted via Mobile Device |
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09-07-2011, 03:11 AM
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#15 |
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Registered User
Join Date: Sep 2011
Location: san diego, ca.
Posts: 51
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Re: big block conversion in my '72 k5
I have the granny 4-speed w/ the 205 t-case.
I can tell you right now I have to cut out some of the upper motor mount on the drivers side and maybe a little of the frame behind the motor mount.... what tranny are you gonna use ? is the tranny still in the truck ? I have some good ideas about how to do your conversion easier.... you can email me at ncjthree@gmail.com and we can discuss more. Nick |
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09-07-2011, 03:14 AM
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#16 |
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Registered User
Join Date: Sep 2011
Location: san diego, ca.
Posts: 51
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Re: big block conversion in my '72 k5
oh also I picked up a 308 ring n pinion with an auburn locker from the junk yard, I was running the original 373 gears but I was spinning 3200 rpm at 60 mph so I needed to get some taller gears
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09-07-2011, 01:36 PM
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#17 |
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Registered User
Join Date: Oct 2010
Location: Salisbury,NC
Posts: 57
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Re: big block conversion in my '72 k5
Nv4500 5speed with 205 tcase. I bought adiy4x4 cross member with the new style motor mounts
Posted via Mobile Device |
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09-07-2011, 01:40 PM
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#18 |
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Registered User
Join Date: Sep 2011
Location: san diego, ca.
Posts: 51
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Re: big block conversion in my '72 k5
is the tranny and t-case already installed ?
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09-07-2011, 01:43 PM
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#19 |
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Registered User
Join Date: Sep 2011
Location: san diego, ca.
Posts: 51
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Re: big block conversion in my '72 k5
the best way to drop the big block in is to move the engine forward about two inches....easier said than done if it's already in the truck. just because you are gonna have issues with the valve covers and the firewall not to mention distributor clearance especially if you are gonna run HEI.
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09-07-2011, 01:47 PM
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#20 |
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Registered User
Join Date: Oct 2010
Location: Salisbury,NC
Posts: 57
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Re: big block conversion in my '72 k5
Tranny and tcase not in yet but putting it all together on rolling chassis. Moving everything forward two inches. Planning on running electric fans
Posted via Mobile Device |
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09-07-2011, 01:51 PM
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#21 |
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Registered User
Join Date: Sep 2011
Location: san diego, ca.
Posts: 51
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Re: big block conversion in my '72 k5
perfect.... I'm running dual electric fans....make sure you run a circuit breaker and relays for the fans....and maybe a thermostatic switch.
check out this site www.truckandcarshop.com did you need a special adaptor for that 5-speed tranny to your 205 ? |
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09-17-2011, 06:20 PM
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#22 |
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Registered User
Join Date: Sep 2011
Location: san diego, ca.
Posts: 51
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Re: big block conversion in my '72 k5
ok, been a little while but a little more progress....
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10-05-2011, 12:43 PM
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#23 | |
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Registered User
Join Date: Mar 2011
Location: Oak Ridge NC
Posts: 957
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Re: big block conversion in my '72 k5
Quote:
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10-06-2011, 11:56 PM
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#24 |
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Registered User
Join Date: Sep 2011
Location: douglas,wy
Posts: 14
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Re: big block conversion in my '72 k5
I moved my 454 foward bout 2" and its like everything lined up im running a trbo400 with a 203 tcase. I found that my adaptor was cracked on my 4 speed to a 205 and i had the stock 350 in it.
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