Re: Engine Problem / Noise
When did this noise start? I'm sorry if this is not what you want to hear, but I redlined my old tired 350 one day, and the day after I heard the same noise you describe; the day after that it was a really erratic shearing and rattling noise: spun crank bearing.
"Around here, there are only two seasons in a year: Hunting Season, and waiting for Hunting Season."
1985 Scottsdale 3/4 ton
14 Bolt SF, SM465/208, 355 CHEVY