4.8 vs 5.3?!?
Thread Starter
Teching In
Joined: Feb 2012
Posts: 37
Likes: 0
Lol, I guess I'll just have to make sure do plenty of research before I get anything from a junk yard, they give the compression numbers so I'll just have to go off what those numbers and hope I won't have to use the warranty. Is there a range of compression I should stay away from?
5.3 i say yay for the 5.3 no for the 4.8 i have a 4.8 stock silverado and feel that it's severally under powered and my opinion your not really saving any thing fuel wise cause your having to mash on the pedal more and give it more gas to make it get up and go. just my two cents
I've done some reading on here, just wanna ask a simple question. I can get a 4.8 complete w computer harness complete for 800 with 90. This motor is going in a 82 Chevy pick up I don't plan on building up the motor or nothing crazy, just a realible daily driver. My question is, should I go with the 4.8 or save a lil more for the 5.3?
I bought a 4.8l thinking it was a 5.3l. But after i researched all you have to do is pull the oil pan off and look at the casting number on the rods. Just do a search for the two different casting numbers.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Thread Starter
Teching In
Joined: Feb 2012
Posts: 37
Likes: 0
Here is three engines I looked at
2003
Engine
Chevy Truck Avalanche 1500 ONE YEAR WARRANTY 170 180 180 180 170 170 170 170,RAN GOOD 140,260 B I520 $600 American Auto Recycling USA-AZ(Gilbert) Request_Quote 1-480-889-7700 Request_Insurance_Quote
2
2004
Engine
Chevy Truck Avalanche 1500 ONE YEAR WARRANTY 150 150 140 150 150 150 140 140,RAN GOOD 141,261 B I127 $600 American Auto Recycling USA-AZ(Gilbert) Request_Quote 1-480-889-7700 Request_Insurance_Quote
2
2003
Engine
GMC Truck Yukon ONE YEAR WARRANTY 170 170 170 170 160 150 170 160,RAN GOOD 130,917 A J130 $600 American Auto Recycling USA-AZ(Gilbert) Request_Quote 1-480-889-7700 Request_Insurance_Quote
2
2003
Engine
Chevy Truck Avalanche 1500 ONE YEAR WARRANTY 170 180 180 180 170 170 170 170,RAN GOOD 140,260 B I520 $600 American Auto Recycling USA-AZ(Gilbert) Request_Quote 1-480-889-7700 Request_Insurance_Quote
2
2004
Engine
Chevy Truck Avalanche 1500 ONE YEAR WARRANTY 150 150 140 150 150 150 140 140,RAN GOOD 141,261 B I127 $600 American Auto Recycling USA-AZ(Gilbert) Request_Quote 1-480-889-7700 Request_Insurance_Quote
2
2003
Engine
GMC Truck Yukon ONE YEAR WARRANTY 170 170 170 170 160 150 170 160,RAN GOOD 130,917 A J130 $600 American Auto Recycling USA-AZ(Gilbert) Request_Quote 1-480-889-7700 Request_Insurance_Quote
2
Last edited by Low82C10; Apr 9, 2012 at 11:58 AM. Reason: Change
the early engines crank snout is different length which requires trans from same year. im not sure of the which years though.
I have a 4.8 truck and it sux cuz its slower than 5.3 and seems to burn more gas. I wouldnt waste my time with anything smaller than 5.7 though
I have a 4.8 truck and it sux cuz its slower than 5.3 and seems to burn more gas. I wouldnt waste my time with anything smaller than 5.7 though
On The Tree
Joined: Jan 2007
Posts: 120
Likes: 0
From: Ada, Ok
Man you ar going to be fine with the 4.8, those older trucks like that tip the scale at like 3600 pds. My brother has a 1977 k5 and it weighs 3800 (4X4). I'm sure the 4.8 want have a problem pushing around your '82 pickup. New trucks have quit abit more added on to them for safety etc.
Teching In
Joined: Sep 2007
Posts: 1
Likes: 0
I own an extended cab silverado with a 4.8 and have driven several 5.3's. They are very similar power wise but the 5.3 does have a bit more low end grunt. The 4.8 will rev a little bit higher to get the same job done. Gas mileage is about the same. If you plan on towing much, the 5.3 really shines. Otherwise, the 4.8 is a great little motor and will serve as a DD just fine.
I would go with which ever one is in the best shape for the money and not be very concerned with displacement.
I would go with which ever one is in the best shape for the money and not be very concerned with displacement.
Man, both gregsss and 02stampede are right. That "little" 4.8 will run circles around an old school 305. For a DD you can't go wrong. Super reliable and still hauls the mail. I've got 325K on mine... If the price is right, jump on it.
^^^true story
Only for the 6.0's because they used the 4l80 trans carried over from the 350 years.
Also, any year automatic trans will work with the long crank, you Just have to use the correct flexplate.
Only for the 6.0's because they used the 4l80 trans carried over from the 350 years.
Also, any year automatic trans will work with the long crank, you Just have to use the correct flexplate.
TECH Fanatic
Joined: Oct 2011
Posts: 1,356
Likes: 2
From: Felton Pa
I bought a 4.8 from Bow Auto recyclers in New Hampshire, I found them on Ebay. $450 and got everything but MAF and O2s. I love it and can't wait to get these turbos on it. I runs really good in my 3800LB Chevelle. They also stand behind their products very well. I will use them again on my next swap.