Rocker boxes
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Dirt don't hurt
Joined: Jan 2011
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From: Haslet Texas
Rocker boxes
The moco has discontinued the rocker boxes.
Does anyone know of a good aftermarket source?
Another question:
Is there a good way to flatten a warped rockerbox?
Does anyone know of a good aftermarket source?
Another question:
Is there a good way to flatten a warped rockerbox?
Last edited by texashillcountry; May 28, 2023 at 03:12 PM.
HDF Community Team
Joined: Jan 2020
Posts: 1,434
Likes: 800
From: Colorado
Hence rocker assembly gets warped by not having the lifters on the bottom side of the cam before you start to loosen the bolts to take the pressure off the rocker box (outside bolts first, then inner 4 long ones last with 1/8" turns per set), to bring the entire rocker box up level with tension off the lifters/push rods.
Thread Starter
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Dirt don't hurt
Joined: Jan 2011
Posts: 21,065
Likes: 4,561
From: Haslet Texas
Yes, get a thick flat steel plate that you can drill/tap the needed bolt channels and as you are tighting the bolts 1/8 turns per set down on the plate, apply heat to he box to un-warp it alone the way. Don't go buck wild with the heat, since your not trying to melt the diecast metal, just soften the metal so the bolts can bring the entire rocker plate and box back to lever against the bolting plate surface in the end.
If I ever get the time I'll give it a try and see what happens.
HDF Community Team
Joined: Jan 2020
Posts: 1,434
Likes: 800
From: Colorado
Would need a photo of how bad its warped, but keep in mind that the bottom of the box flats can be faced to get them back on square, with the lifters have plenty of piston travel for slightly more preload from solid push rod use as well.
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