Hello! Just signed up for the forum. Recently acquired a 1986 1/2 ton Silverado 2WD. It’s been parked for 4 years and is a little rough. But it has good bones and potential. According to the sticker under the hood I was thinking I had a worn out 305 to deal with. But after yanking it out and discovering the GM 5.7 on the back of the block I knew it wasn’t the original motor. Pulled the oil pan and saw I had a 4-bolt main 350! Plan is a 383 stroker. This is my first Chevy truck build so I’m sure I will be on here quite often looking for answers. Thanks in advance!