When I owned my FX Holden it had a Speedway motor fitted to it and when we fitted the cam up I accidentally mixed up 132 Pushrods with the 138's (they're shorter) and came up with no way to lock down the adjusters, one day at the old Car Dump I stumbled across a set of Rocker gear from an early 60's Falcon long motor (144ci/170ci?) and I oiled up the Grey's Rockers and threaded these directly into them.
They are a self locking hollow nut and work brilliantly, no more struggling with a ScrewDriver and Spanner over tightening them and closing the gaps, just a twitch on the socket or ring spanner and it was adjusted, a fluke on my part but a brilliant mod to an otherwise awkward way of adjusting the Rockers...
Maybe this could help some old Side Platey Nut out of a bad situation?
Think of this; Shorter PushRods would surely mean less chances of bending under high Rev's? (Which was how I ended up having to change my pushrods originally, 132 to 138 can have its draw backs and yet... advantages... ;{)
Anyone heard of this and is it worthwhile looking at
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sorry 