silverado 1500
#1
silverado 1500
Hi everyone. I'm new to the forum.
I have a 1999 chevy silverado with the 4.8L. I would like to have a little more power and torque in the truck than I have right now. I am not a mechanic by anymeans so I would like to know what I could do to accomplish that. Also, what is the best type of exaust system. I have flowmasters, but it was done to the truck before I owned it and I'm afraid it wasn't done properly. Infact I know it wasn't. Anyways any ideas or suggestions would be greatly appreciated. Have a good day.
I have a 1999 chevy silverado with the 4.8L. I would like to have a little more power and torque in the truck than I have right now. I am not a mechanic by anymeans so I would like to know what I could do to accomplish that. Also, what is the best type of exaust system. I have flowmasters, but it was done to the truck before I owned it and I'm afraid it wasn't done properly. Infact I know it wasn't. Anyways any ideas or suggestions would be greatly appreciated. Have a good day.
#3
RE: silverado 1500
cheap easy to do upgrades:
cold air kit
flowmaster single in dual out exhaust 40 or 50 series
reprogram your computer- do some researchon which is best for your truck- I used hypertech
change plugs to ac delco platinum- the gap has been changed from the oem setting from60 to 40 and makes a difference
fresh fuel filter
clean injectors
cold air kit
flowmaster single in dual out exhaust 40 or 50 series
reprogram your computer- do some researchon which is best for your truck- I used hypertech
change plugs to ac delco platinum- the gap has been changed from the oem setting from60 to 40 and makes a difference
fresh fuel filter
clean injectors
#4
RE: silverado 1500
The OEM AC Delco spark plug for the 1999 4.8L were a Platinum type, they have been updated to an Iridium tip part #41-985.
Other then making sure the engine is properly tuned and running correctly installing aftermarket go-fast goodies, intake and exhaust systems to this engine generally have little impact on improving performance.
The 4.8L is the same engine as the 5.3L but with a 9mm shorter stroke which reduces the compression ratio from 9.9:1 down to 9.0:1 meaning that this engine suffers from terminal low compression and adding a free-er flowing intake and exhaust won't have the same benefit as if these parts were installed on an engine with more potential.
Other then making sure the engine is properly tuned and running correctly installing aftermarket go-fast goodies, intake and exhaust systems to this engine generally have little impact on improving performance.
The 4.8L is the same engine as the 5.3L but with a 9mm shorter stroke which reduces the compression ratio from 9.9:1 down to 9.0:1 meaning that this engine suffers from terminal low compression and adding a free-er flowing intake and exhaust won't have the same benefit as if these parts were installed on an engine with more potential.
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