180* lifter trays
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Joined: Dec 2017
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Pretty sure they are jammed up against the block and can't "float" on the lifters like they're supposed to.
I don't think they'll survive very long, and when (not "if") they fail, it's gonna cost you A SHIPLOAD M\ORE to fix what happens (turning sideways and EATING lobes and rollers), than a pair of HGs.
I don't think they'll survive very long, and when (not "if") they fail, it's gonna cost you A SHIPLOAD M\ORE to fix what happens (turning sideways and EATING lobes and rollers), than a pair of HGs.
They are "central" IIRC, meaning they're reversible. However, years ago, some guys drilled 1/2" (?) diameter holes in one side of the trays, to aid oil drainback. If thats the case, they should go in however they came out. I cant remember if the holes faced inward, or outward. 
Last edited by grinder11; Jul 20, 2022 at 09:54 AM.
Joined: May 2004
Posts: 1,593
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From: Halfway back on the Highway to Hell...again!
They face outward. so as to allow the oil to drain downward. 1/2" is a little much. I drill about a 3/8" hole. I started doing this about 2004 and built many many engines using this method and never had an issue. It's so much cheaper than link bar lifters.
The ones I have with 1/2" holes were modded by Kurt Urban or Billy Briggs when both were still at Wheel to Wheel. I never had a problem. I won't disagree with you, however, as you would think 3/8" would be large enough. Maybe in a roadrace app the 1/2" may have some advantage, so maybe that's why, IDK.......
