'99 Blazer 4wd 4.3L auto trans, 157k.
I recently replaced (4 mo) head and lower intake gaskets and R side head due to coolant leak into #6 cyl causing cracked head. I recently noticed a "ticking" sound coming from that side during acceleration but not audible at idle. I am thinking a bad valve or lifter, but would appreciate any wisdom. Oil level is normal, recently changed it with Valvoline High mileage, have not checked the plug magnet yet but will do so this weekend when I have time.
Please give me some good news, this thing is killin' me right now!