I have a1999 chevy silverado with a 4.8 want to know if can go to a 5.3 with out changing any of the wire or computers

Asked by Jan 17, 2016 at 05:05 PM about the 1999 Chevrolet Silverado 1500 LS Standard Cab LB

Question type: Car Customization

2 Answers

37,975

I do believe so, I was looking up parts to see if the same, and everything I looked at was the same for the 4.8 & 5.3. I know the OBDII computer has a good range for adjusting sensors. I am not seeing a problem.

1 out of 1 people think this is helpful.
16,255

You do need the 5.3 ecu. The harness will the the same. The ecu is not hard to change. It will come out with the motor and harness anyway. If you really can't get the 5.3 ecu just have yours flashed. However it should "run" with the 4.8 ecu but it will lean out a little.

Your Answer

Add photo

Related Questions

Search Chevrolet Silverado 1500 Questions

Chevrolet Silverado 1500 Experts

#1 John Carson
John Carson
Reputation 1,660
#2 Silverado_owner_2006
Silverado_owner_2006
Reputation 1,440
#3 tenspeed
tenspeed
Reputation 1,350
View All

Related Models For Sale

Used GMC Sierra 1500
1,174 Great Deals out of 58,310 listings starting at $2,495
Used Ford F-150
3,446 Great Deals out of 206,231 listings starting at $1,273
Used Dodge Ram 1500
546 Great Deals out of 13,018 listings starting at $1,800
Used Toyota Tundra
705 Great Deals out of 28,578 listings starting at $2,500
Used Chevrolet Tahoe
1,098 Great Deals out of 31,959 listings starting at $1,495
Used Toyota Tacoma
798 Great Deals out of 33,979 listings starting at $2,499
Used Ford F-250 Super Duty
486 Great Deals out of 42,908 listings starting at $2,850
Used Chevrolet Camaro
656 Great Deals out of 39,477 listings starting at $3,495
Used Chevrolet Silverado 2500
6 Great Deals out of 261 listings starting at $4,200
Used Dodge Ram 2500
181 Great Deals out of 5,646 listings starting at $2,900

Used Cars For Sale

2017 Chevrolet Silverado 1500 For Sale
29 Great Deals out of 79,334 listings starting at $19,398
2016 Chevrolet Silverado 1500 For Sale
341 Great Deals out of 17,118 listings starting at $18,657
2015 Chevrolet Silverado 1500 For Sale
353 Great Deals out of 7,578 listings starting at $16,000
2014 Chevrolet Silverado 1500 For Sale
489 Great Deals out of 11,051 listings starting at $12,998
2013 Chevrolet Silverado 1500 For Sale
270 Great Deals out of 6,465 listings starting at $9,950