by Donnie Hurt | Dec 23, 2024 | CYLINDER HEADS
When valve train clearances are going to be tight, I like to double check my measurements and bench calculations by actually testing the components after they’re assembled. I put the valves and springs in this head, then used my quill on the seat & guide...
by Donnie Hurt | Dec 18, 2024 | CYLINDER HEADS
Sometimes assembling heads with beehive springs and retainers can be difficult because of their size. I find it easier to use a spring shim that fits the retainer and large enough to fit the spring compressor jaws. Randy Torvinen Torvinen’s Machine Menahga,...
by Donnie Hurt | Oct 8, 2024 | CYLINDER HEADS
When you’re grinding Titanium valves, if you want a super shiny finish, grind them with the green wheel and “Mirror finish”. Wipe them off before pulling them from the chuck and give them 30 seconds of spinning with a microfiber towel and some...
by Donnie Hurt | Aug 9, 2024 | CAMSHAFTS & VALVE TRAIN
When checking valve train geometry, you need adjustable pushrods which are never the right length and you need to use a light spring. I bought 1 of every 3/8 .080 wall pushrod 7.00” to 12.00”, in .050” length increments. It makes checking geometry quick and easy. Bob...
by Donnie Hurt | Aug 1, 2024 | CAMSHAFTS & VALVE TRAIN
When I found out that hydraulic lifters may not be made in America, I started buying NOS Chevy and Buick lifters. The ones I have left now have varnish in them that makes the inner plunger stick. I take a cup half filled with lacquer thinner, immerse the lifters four...
