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another 5.3 in an 85 c10

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Old Dec 30, 2009 | 10:02 PM
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Default another 5.3 in an 85 c10

Well , here I go again I have already installed an LS moter in a '79 C10 and started to put an LS motor in a '65 Chavelle. This time I am putting a 5.3 out of a '03 GMC Seirra into my daily driver '85 short bed Chevy C10. Here are some details on the motor....
I started off with a complete 5.3 pull out, disassembled it, left the bottom end alone, freshened it up with a new timing chain and an oil pump. I put a low mile Z06 Cam in it, and a set of ported (by Chris Mitchell) milled, and cut for bigger valve 5.3 heads.


The truck is my daily driver so I am hoping to get it back on the road ASAP!


I am hoping to pull the old 350 this week end so I can get started with the install. Thanks for looking.
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Old Dec 31, 2009 | 03:25 PM
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looks good.
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Old Dec 31, 2009 | 11:55 PM
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sweet!!! good luck with the swap...
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Old Jan 1, 2010 | 12:00 AM
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Im moving to VA in a month, how's about you install a LS2 into my 1993 F/S Blazer 4x4??!!??
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Old Jan 1, 2010 | 12:32 PM
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Default '85 c10

jomomma, what's up. im checkin the swb. me and you be good friends. check out web page. im tryin to finish up the wirirng and shordee will be on the road. please continue to post pics. im very much interested.
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Old Jan 1, 2010 | 01:16 PM
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nice truck
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Old Jan 1, 2010 | 06:36 PM
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thanks guys! and cookba, let me know when you get in. i could definetly help get that ls2 installed!
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Old Jan 1, 2010 | 09:10 PM
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hey jomamma!
you are pretty close by .ever been to stony creek? its right on hiway 40.i have relatives in spring grove.nice looking engine by the way,what are you using for pcv? didnt see any breathers on those nice looking valve covers.
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Old Jan 1, 2010 | 10:17 PM
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im interrested to see how this runs. i would almost bet you get 400 flywheel hp out of it.
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Old Jan 1, 2010 | 10:44 PM
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yeah, ive been by stoney creek when i come up from NC! my mom stays in claremont, which is like 5 minutes from spring grove. spring grove is about a 20 minute drive for me. for pcv i will just drill a hole, put a grommet on, and hook my hose up. heres how i hooked up the pcv to a set of valvecovers just like the ones im going to run....



Last edited by jomomma; Jan 1, 2010 at 10:46 PM. Reason: wrong pic added
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Old Jan 3, 2010 | 03:05 PM
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is that engine in a c-10 too? that thing looks nasty.
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Old Jan 3, 2010 | 08:59 PM
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yeah, i just sold it and the trans too! it was in my 79c10. it makes 730rwhp@15psi on pump gas and a bunch of meth! im completly going through that truck.
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Old Jan 9, 2010 | 10:54 PM
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been busy today. i started unhooking things last night.


this morning i pulled the 350/350th out.


im going to clean up the engine bay tonight. heres the empty hole...


i seperated the old combo and reinstalled the 350turbo on to the 5.3 today also. im going to try to have the motor sitting in its new home by the end of tomorrow!
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Old Jan 10, 2010 | 12:54 AM
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Subscribing to this. I have a84 chevy 4wd i am thinking bout the same swap in.

Andy
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Old Jan 10, 2010 | 09:24 AM
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How far did you mill the heads and what compression do you expect to have? Any changes to the combustion chambers beyond the bigger valves? What size valves?
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Old Jan 10, 2010 | 01:18 PM
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nice pics. I have a nice 84 with original never opened little-baby non-power making 305.
also have a 5.3 waiting to be swaped out

Last edited by fptransport; Jan 10, 2010 at 01:21 PM. Reason: 1
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Old Jan 10, 2010 | 06:20 PM
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the heads were milled .020, and valves are 2.02/1.60. the combustion chambers were left alone. i think the comp is going to be something like 10.2-3:1.
fptransport, have you got any pics of your 84?
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Old Jan 10, 2010 | 09:08 PM
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Originally Posted by jomomma
the heads were milled .020, and valves are 2.02/1.60. the combustion chambers were left alone. i think the comp is going to be something like 10.2-3:1.
Cool, you'll have to let me know how that works for you. My machinist wanted to do the exact same thing to my engine. This car is pretty much my daily / road trip car and I didn't want to get crazy with it (cheap or mid pump gas, etc). He said it wouldn't be crazy but would give me the shot in the arm a 5.3 needs to really be fun. It sounds cool but I'm not doing it until closer to summer.
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Old Jan 10, 2010 | 09:51 PM
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What did you use for motor and trans mounts? I'm considering an LQ4-LQ9/NV4500 swap into my father's '82 C-20. His stock 292 I6 has well over 500k on the odometer and even though it runs strong, there's noticeable bearing knock. Id like to have some [EDIT] options (potions LOL!) when the time comes for a rebuild or a change in powerplants.



Chickenbone
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Old Jan 10, 2010 | 09:57 PM
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sweet looking good
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