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tubman · 08-31-2019, 08:20 AM

One of the advantages of the SBC and similar engines is that the lifter adjustment point is stationery so adjusting them is possible with the engine running. It is much more difficult when the adjustment point is constantly reciprocating and spewing hot oil, as "chap52" points out. Now add to this trying to work in the confines of the liter valley in a flathead with the "Mickey Mouse" lifter wrenches, and the task becomes impossible. And this is positing the use of adjustable lifters that were probably unavailable at the time the risers shown were developed.

Sorry gentlemen, those risers may exist, but I don't believe they were ever intended as a way to adjust the valves. They were probably intended for display or observation purposes only.

08-31-2019, 08:20 AM	#9
tubman Senior Member Join Date: Dec 2013 Location: Minnesota, Florida Keys Posts: 10,319	Re: Valve adjusting One of the advantages of the SBC and similar engines is that the lifter adjustment point is stationery so adjusting them is possible with the engine running. It is much more difficult when the adjustment point is constantly reciprocating and spewing hot oil, as "chap52" points out. Now add to this trying to work in the confines of the liter valley in a flathead with the "Mickey Mouse" lifter wrenches, and the task becomes impossible. And this is positing the use of adjustable lifters that were probably unavailable at the time the risers shown were developed. Sorry gentlemen, those risers may exist, but I don't believe they were ever intended as a way to adjust the valves. They were probably intended for display or observation purposes only.