0.100" preload Caddy Race Lifters?

GapRider · 06-23-2023, 06:28 PM

I have searched, read, called and I only see one reference to the recommended preload for Caddy Race lifters GM 88958689 which I installed with my CAM MOTION cam - 0.050" to 0.100" on the BTR website.
I read one guy on a forum that stands out saying he runs 0.100" or greater preload on those lifters, most stay closer to the 0.060 to 0.080 range.

I have right at 0.100" preload with my aftermarket stock length 7.850"pushrods.

I really feel like I should replace them with 7.825" to reduce my lifter preload closer to the middle of the recommended range.

Can someone chime in on this to help me decide?

2019 Gen V 6.2 LT1

Spaceme1117 · 06-28-2023, 07:19 AM

I personally would go with the 7.825 for a 0.075 preload. 0.100 to me is a bit too much.

06-23-2023, 06:28 PM	#1
GapRider Drives: 2019 Stingray M7 Join Date: Feb 2022 Location: SC Posts: 2	0.100" preload Caddy Race Lifters? I have searched, read, called and I only see one reference to the recommended preload for Caddy Race lifters GM 88958689 which I installed with my CAM MOTION cam - 0.050" to 0.100" on the BTR website. I read one guy on a forum that stands out saying he runs 0.100" or greater preload on those lifters, most stay closer to the 0.060 to 0.080 range. I have right at 0.100" preload with my aftermarket stock length 7.850"pushrods. I really feel like I should replace them with 7.825" to reduce my lifter preload closer to the middle of the recommended range. Can someone chime in on this to help me decide? 2019 Gen V 6.2 LT1 Last edited by GapRider; 06-24-2023 at 08:06 AM.

06-28-2023, 07:19 AM	#2
Spaceme1117 Drives: 2017 Camaro SS, 2011 Corvette GS Join Date: Feb 2019 Location: Erlanger, Kentucky 41018 Posts: 857	I personally would go with the 7.825 for a 0.075 preload. 0.100 to me is a bit too much.

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