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03-24-2016, 03:25 PM | #1 |
Registered User
Join Date: Feb 2007
Location: Marana, Arizona
Posts: 3,457
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daily driver (not a swap) 5.3
Curious how many have LS family engines as there DD?
Are they reliable in stock form? I've heard pros and cons. Looking specifically for a 5.3 in a Trail Blazer (actually a 9-7X the Saab version) On paper they get decent gas mileage, have enough power to pull a small trailer. Wondering about a higher miles vehicle, worth the risk?
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"I feel the need for speed!"... as soon as I am done with my nap. |
03-24-2016, 04:53 PM | #2 |
meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: daily driver (not a swap) 5.3
6.0's run in G-vans for TW and other Telecom's to 250k+
Timing chains, oil pumps, and change the oil. You'll have to replace the occasional ignition coil, but even that isn't frequent, just something that happens in a lifespan. Exhaust studs will break or get stuck, the intake manifold will eventually get oil film in it, and some folks have had to replace knock sensors and/or to CASE relearns....but those are all in the full lifespan of the truck. Pretty minor when compared to the other full size v8's that exist. Especially if it never see's a cam or higher rpm, they don't have much to break.
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD
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03-24-2016, 05:26 PM | #3 |
Registered User
Join Date: Feb 2007
Location: Marana, Arizona
Posts: 3,457
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Re: daily driver (not a swap) 5.3
Thanks! BR3W CITY!
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"I feel the need for speed!"... as soon as I am done with my nap. |
03-24-2016, 09:08 PM | #4 |
Senior Member
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
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Re: daily driver (not a swap) 5.3
My BIL has a 2004 Trailblazer EXT 2wd with a All Aluminum 5.3L, He is a Electrical Contractor & tows trailers, Is always loaded down with crap plus a loaded conduit rack, Ladders etc. The Front suspension does not hold up well with his duty cycle, Other than that & a few Electrical issues....The engine is all original other than basic maintenance....Plug, Wires, Intake Gaskets, Hoses, Radiator, Fan etc.
The last time I saw it was in December when I rebuilt the Original 4L60E at 365,000 miles. I reused the Case, Output shaft, Center Support, Valve Body & the Pump halves.....Everything else was totally worn out. |
03-24-2016, 09:56 PM | #5 |
Post Whore
Join Date: May 2015
Location: Alabama
Posts: 14,670
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Re: daily driver (not a swap) 5.3
I ran my 99 z71 with a 5.3 for 285000, pulled a bunch of overloaded trailers with it.then I traded it off..only thing I ever had to do to the engine was a water pump and fuel pump. Never touched anything else..one of the best trucks I've owned.
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