LQ4 build questions

2003 CHEVROLET EXPRESS
250,000 MILES • 6.0L • V8 • 2WD • AUTOMATIC
Avatar
CHANTRO
  • MEMBER
  • 1 POST
I have a LQ4 block that was pulled from an 2003 Express 2500 that spun two bearings. Is it possible for me to clean up the engine and rebuild it back to good condition myself?
Nov 25, 2017 at 10:33 PM
Advertisement
Avatar
STEVE W.
  • ✓ASE Certified Mechanic
  • 15,200 POSTS
  • ASE Certified Mechanic
You would need to measure the block to see if the bearings damaged the saddles in the block and price having it line honed, the same with the crankshaft and rods. Also, check the piston bores for wear and see if they need to be cleaned up.
Nov 26, 2017 at 10:42 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.