LS7 Lifter Tick
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3rd Gear
Joined: Apr 2026
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LS7 Lifter Tick
Hello everyone, new to the forums and had a question. Hoping to get pointed in the right direction.
I developed what I believed to be a lifter tick in my H/C/I LS7. I swapped out lifters with the cheapo Delphi LS7 lifters, at the time I was unaware that those lifters would not work for my build. I still have a lifter tick, which I believe to be the lifter collapsing because of the heavy spring pressure and weak lifter. I am running BTR stage 4 LS7 cam (662" Lift) , BTR.685 DUAL SPRING KIT .685" LIFT, and 7.700 in. Length pushrods. When diagnosing, I unplugged bank 2 coil pack and the ticking stopped. No cylinder pressure = no tick? What does that mean?
Oil Pressure is at 22 PSI when hot. I know Chevy calls out for 20 PSI hot as acceptable. When draining the oil and cutting the filter it looked relatively clean, a few specs but nothing concerning. Please let me know what you guys think? Lifter tick or knock?
I developed what I believed to be a lifter tick in my H/C/I LS7. I swapped out lifters with the cheapo Delphi LS7 lifters, at the time I was unaware that those lifters would not work for my build. I still have a lifter tick, which I believe to be the lifter collapsing because of the heavy spring pressure and weak lifter. I am running BTR stage 4 LS7 cam (662" Lift) , BTR.685 DUAL SPRING KIT .685" LIFT, and 7.700 in. Length pushrods. When diagnosing, I unplugged bank 2 coil pack and the ticking stopped. No cylinder pressure = no tick? What does that mean?
Oil Pressure is at 22 PSI when hot. I know Chevy calls out for 20 PSI hot as acceptable. When draining the oil and cutting the filter it looked relatively clean, a few specs but nothing concerning. Please let me know what you guys think? Lifter tick or knock?
