When making custom length pushrods, I finish the end in my valve grinder like I would a valve stem tip, after cutting to the desired length. It leaves a better finish and a true face. After that I break inside and outside edges, then install my desired ends. Neil...
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...
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...
PREVENTABLE LIFTER CLATTER The lifter oil feed hole on common GM LS lifters is offered in more than one orientation. Both are functionally correct and interchangeable. The difference is in the location of the oil feed hole. Both should be installed such that some oil...
CAM RELUCTOR-WHEEL BLUES On the 2006-2016 GM 2.4L Eco-Tech engines, beware of the reluctor-wheel attached to the intake and exhaust camshafts for the cam sensor. These are just pressed on. If they get hot and lose their press fit, they will come loose and move. The...
GEN VI LIFTER GUARD I have a big block Gen VI tip that will provide oiling and windage improvement at no cost. When a builder uses retrofit roller lifters and no longer has a use for the hold down spider, I find it useful as a cover and shield by modifying it and...