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Click on image for the lowdown. 
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| | | Forums66 Topics128,077 Posts1,056,016 Members48,433 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | Others will post lifter-identification techniques. Yes, the lifter is at the bottom of the push rod. What you describe does sound a little like a hydraulic lifter (I misunderstood your first post).
The best ID technique is to pull a lifter and inspect it, but that requires removing the side cover. You might not want to do that is the seal on the side cover is good (no oil leaking out around it).
What is your engine's serial number - it is pressed into the block to the rear of the distributor. That code should indicate hydraulic-lifter or mechanical-lifter. | | |
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