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  1. kaj750

    Random, single detonation count.

    Installed new lifters. Broken in with assembly paste, high zinc oil, and zinc additive. Car started and ran great. Still does except: When idling, I get a random detonation knock. It's only one and it's approx every 5-10sec while idling. I do have EFI so wondering if I contaminated the O2 sensor...
  2. kaj750

    Trashed rocker assembly?

    While trying to chase down an extremely loud, intermittent valvetrain tick, I found my rocker assembly in the following condition. I'm no expert, but it looks like one issue is lack of oil, judging by the scuff marks. Not sure if it happened when the engine was built or recent. If current, that...
  3. kaj750

    Adjust rockers to ..?

    I keep reading that I should check the adjustment of my rockers, when installed, but no mention of what I'm adjusting to. I'm installing new lifters because I had one fail. Once I put the rocker assembly back on, what specs am I looking to adjust? The lifters are hydraulic, so what's left? My...
  4. kaj750

    Required valve cover height 440/Charger

    Pulled the valve cover off my car to chase down and intermittent lifter tick. Previous owner caked a ton of silicone onto what looks like a black paper gasket. It's shredding off in micro pieces and taking forever to clean. Looking to just replace. They are a generic stamped steel valve cover...
  5. kaj750

    Small or larger yolk on differential?

    I have a guy that has a sure grip rear differential for my car. He states that it has a small yolk. Neither of us are sure if that would work with the driveline on my car. How can I tell? 1969 charger with unknown original engine and automatic transmission. I only know that once my engine and...
  6. kaj750

    Detonation after distributor cap install.

    I'm going to try to explain this best I can since I couldn't take pics/vid while also timing the car. :lol: So. Car ran fine before I started all of this and *all* I did was swap to a new distributor cap. I replaced a Mallory cap with a Mallory cap. Went for a drive and car is detonating at...
  7. kaj750

    Making 500whp in 2023

    This site seems super slow... but hoping for some help! I'm finding some old posts, on many forums regarding this age-old question: How to make an honest 500whp. However, I can't find any into dated within the last 8yrs. Am I missing something or is it just because it's been done so much...
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