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Author Topic:   Adjusting the Non-adjustable??
Pit Bull
Dirt Full Roller

Total posts: 65
posted December 03, 2001 11:20 PM
Does anyone here know how to properly set the valves on a buick 455? Im getting ready to re-do my cylinder heads, and this will end up changing my valve train geometry. I thought about using adjustable push rods because I cant find a set of adjustable rocker arms anywhere except the 800 dollar roller setups, which are out of the question. By the way, im running a hydraulic camshaft. Any help would be greatly appreciated! Thanks!

Dirt Freak

Total posts: 467
posted December 03, 2001 11:39 PM
Your machine shop will have a book with the valve stem height spec's . Once they do a valve job , they will (and they better) check the valve stem height , and cut the proper amount off of the tip of the valve to set the correct height . At that point , your valve height will be set , so when you bolt your rocker arms on , your valves will be set . Make sure that your machine shop checks your valve stem height , and re-set's it once your valve job has been done !

Dirt Full Roller

Total posts: 47
posted December 04, 2001 01:49 AM
We had no trouble using the adjustable push-rods, if you need to. Set valves with plunger in lifter midway in travel. You will need to take spare rockers and push-rods to the track, because you will probably lose a few using the stock rockers.

Dirt Freak

Total posts: 230
posted December 04, 2001 03:33 PM
Another option is to get hats for the valve stems. Your machine shop should take this into consideration prior to machining. Hats come in different sizes, measure the gap, and install the proper hat.Easy. I think it would be cheaper than a good set of adjustable push rods.

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