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I’m working on my dads 79 k20 plow truck. I built the engine 15+ years ago and slowly been getting it in better shape for him. I replaced the stock exhaust manifolds with headers and new gaskets (that passenger side had no gasket at all), now it pops/ backfires. I have determined it’s the...

Took my 1980 Malibu to the car show for the first time. Won best GM out of around 100 total cars of different makes and models.

So I broke a rocker arm stud off in the head. Its the press in style stud, but my question is how far into the head does the stud go? Ive been told there is about 2 eays of removing it, drilling it out and cleaning up the hole for the new stud or welding a nut on it and trying to pry it out. If...

What fluid do I change my transmission with? I’ve looked on the net for the fluid but all the TH350s say drop the pan, I got no pan cuz it’s a manual. It more then likely a dumb question but I’m changing the rear seal and figured I should change the oil during the process.

While I was waiting for parts to be delivered for my G body, I decided to tinker with my dads 79 3/4 tin Chevy plow truck. He had purchased some headers from summit a year prior just never got around to installing them. So I decided to do it for him. His current stock manifold had no gasket on...

is it possible to convert a one wheel drive rearend into posi? or do I need to replace the housing and a new axle?

Hi all, im new here to the forums, located in Iowa. I have a 1980 2 door, 4 speed Malibu classic. I bought it with a 350 chevy engine and 4 speed Saginaw transmission. All but the engine is the way I bought it, I blew it up when I was younger and rebuild another 350 to replace it. I have some issues...