Planning to install inserts for use on my VW 1600 dual port heads. Luckily I decided to drill out a piece of aluminum and to see how well the threads fit the inserts.Short answer, they didn't fit or even started to fit into a properly drilled M16x1.5 threaded hole.Very happy I did before drilling the heads did a test hole it's a much better product and design that works my review is based on over 60 years of automotive and mechanical shop experience much of it at VW.
Upgrade Your Driving Experience With Lunsom'S Automatic Shift Knob: High-Quality Metal Car Shifting With Push Button & Long Stick Gear Head In Black
38 Review
Replace Car Bumper Clips: GOOACC 100Pcs For Nissan, Mazda And Infiniti, Including Fastener Remover
33 Review
Upgrade Your Mazda MX-5 Miata With CravenSpeed'S USA-Made Door Bushings
39 Review
820Pcs Car Push Retainer Clips & Fasteners Assortment - Ford GM Toyota Honda Chrysler BMW Benz Nissan Subaru Audi Mazda
32 Review