My Blazer’s story.
1999 Chevy Blazer
215,000 miles (346,000 km)
5 speed manual
4x4 (with the janky push button selector)
0-60 9.8 seconds (My best with throttle body mod)
I bought it for $600. The guy (and I at the time) thought the engine was about to go, but it had the uncommon 5 speed manual, so I was going to buy another with a bad auto trans (the autos were crap), and swap the engine.
It was making a horrible knocking noises (like rod knock), but it ended up being the catalytic converter.
I did a throttle body mod.
This first picture isn’t mine, but it’s what mine looked like before the mod (didn’t think to take a picture).
The butterfly valve out of the throttle body.
Drilled out the rivets holes to separate the butterfly valve from the… uhh… other thing
Cleaned it up, and tapered the rivet holes, so the J-B Weld SteelStik Putty won’t be able to come out.
This mod knocked about 1 second off the 0-60 (10.7 to 9.8 and it was hotter outside for the 9.8 time) also the engine is a little happier to rev to redline after the mod.