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I am looking at a 99 silverado ext. cab 4x4 with the 4.8L V8. I have no experience with this motor nor do I know anyone that has one. I have a 5.7 vortec in my burban and everyone I know with the 5.3L is impressed with the power and fuel economy. How will the 4.8 compare. I really was hoping for the 5.3L but this truck is a really good buy with the 4.8L. How does it compare to the 5.3L? Will it tow 2000lbs ok. Will I notice it to lack power? Good motor or should I walk away.

 

Thanks

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I am looking at a 99 silverado ext. cab 4x4 with the 4.8L V8. I have no experience with this motor nor do I know anyone that has one. I have a 5.7 vortec in my burban and everyone I know with the 5.3L is impressed with the power and fuel economy. How will the 4.8 compare. I really was hoping for the 5.3L but this truck is a really good buy with the 4.8L. How does it compare to the 5.3L? Will it tow 2000lbs ok. Will I notice it to lack power? Good motor or should I walk away.

 

Thanks

 

 

 

 

Same engine.. 4.8, 5.3 and 5.7 are all the same block, basically the same engine with different bore and stroke. And different programming in the computer. Maybe a different cam, I'm not sure about that.

 

A 5.3 is a bored 4.8.. a 5.7 is a bored and stroked 4.8

 

4.8 is 292 cu in 5.3 is 305 cu in, and 5.7 is 350 cu in. All updated versions of the original Chevy Small Block 283 cu in.

 

The 4.8 is only about 10 HP less than the 5.3 but because it has smaller pistons, less cu in, it has less torque and low end.. Still a good engine.. Towing 2000lbs,, not a problem. Should be fine up to 4000 to 5000 lbs.

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5.3 is 305 cu in

 

not quite.... its 325 ci

 

 

 

 

 

A little History,

 

The 1999 Vortec 4800 had 245 HP and 275 lbft torque. In mid year 2000-2003 the Vortec 4800 was updated to lay down 275 HP and 285 lbft torque. And finally in 2004-2005 it matured to 285 HP and 295 lbft Torque.

 

Similarly in 1999 the Vortec 5300 was only 270 HP w/315 lbft torque. It was followed by the 285 HP and 325 lbft update from 07/2000-2003 and again in 2004 to 295 HP and 330 lbft torque.

 

The major change was GM used the Vortec 6000 camshaft in the Vortec 4800/5300.

 

I would assume the Vortec 4800 even at its early stage in life from 1999 would still be a nice engine.

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I am looking at a 99 silverado ext. cab 4x4 with the 4.8L V8. I have no experience with this motor nor do I know anyone that has one. I have a 5.7 vortec in my burban and everyone I know with the 5.3L is impressed with the power and fuel economy. How will the 4.8 compare. I really was hoping for the 5.3L but this truck is a really good buy with the 4.8L. How does it compare to the 5.3L? Will it tow 2000lbs ok. Will I notice it to lack power? Good motor or should I walk away.

 

Thanks

 

 

 

 

Same engine.. 4.8, 5.3 and 5.7 are all the same block, basically the same engine with different bore and stroke. And different programming in the computer. Maybe a different cam, I'm not sure about that.

 

A 5.3 is a bored 4.8.. a 5.7 is a bored and stroked 4.8

 

4.8 is 292 cu in 5.3 is 305 cu in, and 5.7 is 350 cu in. All updated versions of the original Chevy Small Block 283 cu in.

 

The 4.8 is only about 10 HP less than the 5.3 but because it has smaller pistons, less cu in, it has less torque and low end.. Still a good engine.. Towing 2000lbs,, not a problem. Should be fine up to 4000 to 5000 lbs.

 

 

 

 

 

You whole post is full of mistakes.

 

The 4.8, 5.3 and 5.7 (ls1) are NOT updated versions of the SBC, they arn't even close to the same block, they are totally different engines they are not a GENIII motor, and a 5.3 isn't a 305, a 305 is a 5.0 SBC. And a LS1 5.7 is 348 CI.

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Well, I drove the truck and the motor felt like a 5.3L to me. I don't drive a 5.3 everyday so that is just a comparison of a few drives I have had with one. May even be a little quicker out of the hole than my 99 350 vortec in the burban.

 

I ended up buying the truck. It is a 99 extended cab 3rd door LS 4x4 with bucket seats and full center council. It has a charcoal interior in fabric. I could not see in flaws with the inside. No burn marks or nothing. The out side was very clean as well with full bedliner. It has 130,000 miles. I wanted to pay cash and get the most truck I could afford on my $9000 budget. This will be our second vehicle. Basically to haul my arse to work and back and a few trips up north a year. I got the truck for $8200.

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Well, I drove the truck and the motor felt like a 5.3L to me. I don't drive a 5.3 everyday so that is just a comparison of a few drives I have had with one. May even be a little quicker out of the hole than my 99 350 vortec in the burban.

 

I ended up buying the truck. It is a 99 extended cab 3rd door LS 4x4 with bucket seats and full center council. It has a charcoal interior in fabric. I could not see in flaws with the inside. No burn marks or nothing. The out side was very clean as well with full bedliner. It has 130,000 miles. I wanted to pay cash and get the most truck I could afford on my $9000 budget. This will be our second vehicle. Basically to haul my arse to work and back and a few trips up north a year. I got the truck for $8200.

 

 

 

 

congrats!! nothing wrong with a highmiler, that way you don't stress on putting on too many miles.

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