New to tech
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Teching In
Joined: Feb 2019
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New to tech Hi all new to the website, been in the ls game for awhile now. Sites been my go to for information. Have 84 k10 been swapping almost done the the ly6 build. I’ve stumped at the moment idk if I should start a thread or just shoot my shot here?? Any way I’ve purchused zzp ls7 high performance lifters and have been trying to obtain a preload on them can’t get a straight answer. I did use the pushrod length checker. And I came out with 7.275-7.300 base height. What I’m asking is what do these lifters call for. It says they have less range for adjustment I’m assuming 50 thousands preload on these will work I was just hoping you can give conclusive preload on these lifters. Here’s the description they have on these lifters any help would be greatly appreciated thanks!
This lifter is modeled after the Comp 875 lifter but it has more travel range for more installation flexibility. They give higher RPM power w/o the noise of other aftermarket lifters.
Below is a description between the differences of the standard Comp OE Lifter compared to the OE-R. This lifter is inbetween the two where you get the feel and sound of an OE lifter, but more of the performance of the OE-R lifter without the drawbacks of the OE-R. The OE lifter is slightly better than an OEM lifter.
OE lifters are a performance replacement for stock hydraulic roller lifters. Preload is meant to be setup similar to stock. Like stock, they are a ball valve style lifter.
OE-R lifters are specifically designed to perform at higher engine speeds. When engines are equipped with a hydraulic camshaft, high rpm is limited by the improper position of the internal piston as the lifter inevitably "pumps up". This improper location results in open valves and therefore leads to lost power. These lifters are almost required for any 3800 car shifting above 6000rpm because they help with the typical 5600rpm dip. OE-R lifters are preloaded and have to be installed between 3/8 and 3/4 turn (vs. 1/2 to 1.5 turns on stock lifters). These are a shim valved lifter like the ZZP and LS7 lifters. They have less range adjustment so preload is more difficult to setup. It's recommended to use a pushrod length checker.
Below is a description between the differences of the standard Comp OE Lifter compared to the OE-R. This lifter is inbetween the two where you get the feel and sound of an OE lifter, but more of the performance of the OE-R lifter without the drawbacks of the OE-R. The OE lifter is slightly better than an OEM lifter.
OE lifters are a performance replacement for stock hydraulic roller lifters. Preload is meant to be setup similar to stock. Like stock, they are a ball valve style lifter.
OE-R lifters are specifically designed to perform at higher engine speeds. When engines are equipped with a hydraulic camshaft, high rpm is limited by the improper position of the internal piston as the lifter inevitably "pumps up". This improper location results in open valves and therefore leads to lost power. These lifters are almost required for any 3800 car shifting above 6000rpm because they help with the typical 5600rpm dip. OE-R lifters are preloaded and have to be installed between 3/8 and 3/4 turn (vs. 1/2 to 1.5 turns on stock lifters). These are a shim valved lifter like the ZZP and LS7 lifters. They have less range adjustment so preload is more difficult to setup. It's recommended to use a pushrod length checker.
