eagleone1983
Well-Known Member
Engine is a 383, I have the Comp Cams XE275HL which has .525" of lift. Engine has been in the car running great since 2012. I could've sworn when I bought the heads that I looked over everything that needed to be done in order to run with my combo. I changed out the locks and keepers to 10 degrees, maybe 440source changed their spring recommendation but here I am wondering if I should now change my springs.
Never thought about them before but I dug into my motor in the last week because of a noisy valve train and had a lot of rocker arm movement side to side so I corrected that issue and as I started inspecting things that's where I noticed the springs were still the stock Stealth ones.
I'm not an engine builder nor am I any expert. Since it's been running this long without issue should I just not worry about it? I've never noticed valve float before when driving though I also would have no idea what it sounds like but I'm sure it would be noticeable.
Second question, after watching numerous videos on setting lifter preload I've noticed most of them have noticeable up and down movement in the pushrod before they tighten up the rocker arm adjustment. My pushrods do not have any up and down movement at base lobe with the rocker adjustments fully in (most loose setting). I'm thinking my engine builder used a pushrod that gave me 0 preload when everything was bolted down but now that makes things difficult to really know if that is the case without taking off the intake manifold. Is there anyway to verify any of this without taking off the manifold?
Never thought about them before but I dug into my motor in the last week because of a noisy valve train and had a lot of rocker arm movement side to side so I corrected that issue and as I started inspecting things that's where I noticed the springs were still the stock Stealth ones.
I'm not an engine builder nor am I any expert. Since it's been running this long without issue should I just not worry about it? I've never noticed valve float before when driving though I also would have no idea what it sounds like but I'm sure it would be noticeable.
Second question, after watching numerous videos on setting lifter preload I've noticed most of them have noticeable up and down movement in the pushrod before they tighten up the rocker arm adjustment. My pushrods do not have any up and down movement at base lobe with the rocker adjustments fully in (most loose setting). I'm thinking my engine builder used a pushrod that gave me 0 preload when everything was bolted down but now that makes things difficult to really know if that is the case without taking off the intake manifold. Is there anyway to verify any of this without taking off the manifold?