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09-14-2015, 02:47 PM
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#1 |
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Registered User
Join Date: Sep 2015
Location: Haughton LA
Posts: 75
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4.2 liter
Do any of you guys know if anyone has planted a 4.2 from a Trailblazer into there trucks?
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09-14-2015, 02:48 PM
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#2 |
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Registered User
 
Join Date: May 2014
Location: PA
Posts: 1,417
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Re: 4.2 liter
If that's the aluminum inline 6, those motors are absolute garbage.
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1967 C10, LWB, 250, Powerglide, PS, PB, 3/4 STATIC DROP |
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09-14-2015, 02:49 PM
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#3 | |
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Registered User
Join Date: Jul 2014
Location: Missouri
Posts: 1,427
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Re: 4.2 liter
Quote:
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Jack Personal Fleet: Family Fleet: 1955.5 Panel 1959 Apache 1968 ShortWide 1969 ShortStep |
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09-14-2015, 03:05 PM
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#4 | |
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Registered User
Join Date: May 2011
Location: Oakley, Michigan
Posts: 735
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Re: 4.2 liter
Quote:
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09-14-2015, 03:15 PM
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#5 |
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Registered User
Join Date: Sep 2015
Location: Haughton LA
Posts: 75
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Re: 4.2 liter
I had a Trailblazer with this motor, and it was a good, solid motor... I'm sure some have had bad experiences with them, but who hasn't had a bad experience with a certain motor.... I like to be different, I don't care to do what everyone else is doing, hell, if a VW, had the power I would try and put one of those in my truck, just to be different....
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09-14-2015, 03:46 PM
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#6 |
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Registered User
Join Date: Oct 2014
Location: Mesa AZ (Near Phoenix)
Posts: 2,302
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Re: 4.2 liter
I have heard of them breaking crankshafts but that is usually near or after 200,000 trouble free miles. Go for it.
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"Life is too short to drive a boring vehicle". Later, Wayne 
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09-14-2015, 03:50 PM
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#7 |
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Senior Member
Join Date: Mar 2005
Location: Jurupa Valley, Ca
Posts: 1,209
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Re: 4.2 liter
Sold my TB with the 4.2L engine in it earlier this year, 224K miles and no problems with the motor. Hope my Dodge Challenger Hemi lasts as long.
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Terry 1970 Custom Camper/C20 , GM Crate 350/7004R, Dana 60, factory AC |
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09-14-2015, 09:07 PM
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#8 |
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the boat guy
Join Date: Jul 2007
Location: springfield mo
Posts: 2,339
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Re: 4.2 liter
Mmmm $1000 oil pan.
There's better and cheaper inline 6s out there to swap.
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67, swb, fleet, tach, throttle, 5.3, 4l60e, 3.73's, fuel cell, 5 lug, p.d.b., 4-6 drop. great little truck 66, stevens drag/ski 18' silouette, 350, 2.02 doublehump heads. comp extreme marine 278 cam, vette 7 fin valve covers, old polished edelbrock intake, velvetdrive, casale v-drive, adj cavitation plate. 28, model a rpu project, |
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09-15-2015, 12:35 AM
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#9 |
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Registered User
Join Date: Apr 2014
Location: NOR-CAL
Posts: 1,134
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Re: 4.2 liter
I thought I read somewhere that they were too tall for our trucks
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09-15-2015, 06:44 AM
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#10 |
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Registered User
Join Date: Oct 2008
Location: Marianna Arkansas
Posts: 7,257
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Re: 4.2 liter
The oil pan is gonna be the problem. I'm sure some one would do the harness it might cost a little more than doing an LS swap but the oil pan was made funny then it has the axle tunnel for the front driveshaft. It would take a custom setup to get it even to sit down in the bay I think. Jim
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09-15-2015, 07:50 AM
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#11 |
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Special Order
  
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,863
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Re: 4.2 liter
This site is turning into 67-72swaps.com. Jeez, what has suddenly made one of the greatest motors ever built (proven by time) not worthy of the job it's done since 1955?
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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09-15-2015, 07:56 AM
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#12 | |
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Registered User
Join Date: Apr 2014
Location: NOR-CAL
Posts: 1,134
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Re: 4.2 liter
Quote:
And lets face it if you want to go EFI on a SBC its not cheap compared to what you can pick up a drop out motor for |
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09-15-2015, 08:39 AM
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#13 | |
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Registered User
Join Date: Apr 2012
Location: Covington, GA
Posts: 386
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Re: 4.2 liter
Quote:
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Matt Cramer 1972 Chevy C10 - 4.8 swap, long bed, and maybe one dent free body panel somewhere - SOLD 4.8 LS build thread |
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09-15-2015, 09:20 AM
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#14 | |
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Registered User
Join Date: May 2014
Location: PA
Posts: 1,417
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Re: 4.2 liter
Quote:
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1967 C10, LWB, 250, Powerglide, PS, PB, 3/4 STATIC DROP Last edited by EARNHARDT#3; 09-15-2015 at 09:37 AM. |
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09-15-2015, 09:54 AM
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#15 |
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Registered User
Join Date: Apr 2011
Location: Mustang, Oklahoma
Posts: 2,807
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Re: 4.2 liter
This guy already did it... just follow his thread for all the details. Very well thought out and engineered build.
http://67-72chevytrucks.com/vboard/s...d.php?t=570856
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Dan <---(my name) 67 SWB C10 project "GEORGIA"-59 Brookwood 2dr wag...Next project-03 Tahoe 4x4 5.3 family ride-07 Hondur Accord, commuter car |
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09-15-2015, 03:06 PM
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#16 |
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Registered User
Join Date: Feb 2007
Location: Marana, Arizona
Posts: 3,416
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Re: 4.2 liter
Just started out reviewing these rigs (engines) by far my initial finds are positive. I'm looking at a Trailblazer or Envoy for a light duty off-road/small trailer puller.
I think swapping one in anything is cool. Certainly not boring.
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"I feel the need for speed!"... as soon as I am done with my nap. |
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09-15-2015, 06:20 PM
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#17 | |
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All about them K’s
 
Join Date: Jun 2014
Location: Farmington, New Mexico
Posts: 6,232
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Re: 4.2 liter
Quote:
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Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's ‘87 IROC-Z all original 50K mile survivor TPI 305 IROC Blue ‘10 Camaro 2SS/RS Aqua Blue Metallic #93 -version 2.0
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09-15-2015, 07:02 PM
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#18 | |
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Registered User
Join Date: Apr 2014
Location: NOR-CAL
Posts: 1,134
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Re: 4.2 liter
Quote:
That is the most reasonable route for sure just not the support that other stuff has It is one route I am considering for about 900 I can get a setup that is stand alone based on the original tbi setup. But most people can get a complete ls dropout engine for even less than that If I could do one myself that would be optimum just don't really know how or where tonstart |
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09-15-2015, 09:53 PM
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#19 | |
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Registered User
Join Date: Aug 2015
Location: Pine Mountain, Georgia
Posts: 125
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Re: 4.2 liter
Quote:
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71 C10 I6 250 TH350 power steering and power breaks... |
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09-16-2015, 12:20 AM
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#20 |
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Registered User
Join Date: Feb 2009
Location: Calgary, AB, Canada
Posts: 156
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Re: 4.2 liter
Working on it right now, but I haven't got far yet. They are a great engine and with a little boost they can make some serious power.
http://www.hotrod.com/how-to/engine/...ec-inline-six/ If it will fit under the hood of a 69 Firebird it will fit in our trucks. |
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09-16-2015, 11:27 AM
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#21 | |
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Registered User
Join Date: Feb 2007
Location: Marana, Arizona
Posts: 3,416
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Re: 4.2 liter
Quote:
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"I feel the need for speed!"... as soon as I am done with my nap. |
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09-16-2015, 09:13 PM
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#22 |
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Registered User
Join Date: Feb 2009
Location: Calgary, AB, Canada
Posts: 156
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Re: 4.2 liter
Good point, I never noticed the hood before.
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