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'99 college party girl ('Hoe). She sucks good (k&n CAI), squeezes good (350 on a fresh build), blows good (flowtech LT's, true duals, cat delete, flowmasters), knows how to play the whistle (1" TB spacer), lights up the room (accel ignition system), and is built for speed (tuned by Mayhem...

Hi everyone, I have an 04 Z71 that the rear heat went out in a few weeks ago. Research showed that the control module was more than likely the culprit, so I ordered one and installed it today. I went through the calibration method I found (pull HVAC/ECAS fuse during installation, start truck...

My stock 99 5.7L cracked both heads already at 140,000 miles. The guy that does my machine work is an old friend and he said that in his experience these heads crack more often than not. Now that being said, are there any alternative stock heads that hold up better? For instance the 243 heads...

I have a 99 two door in mint condition that I have currently torn the engine down in to do some motor work. On the way back up though I wanted to paint the heads and replace the valve covers with something cool (edelbrock, holley, moroso, mickey thompson, etc.) But I can't seem to find ANYTHING...

Hello all, thanks you for allowing me to join your forum. I joined because I am having issues with my 04 5.3l z71. Daily driver with 166k on the clock. Little background information, I had the heads replaced by a local indy shop about 2 years ago. I had a defective set of heads that cracked...