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| head interchange question https://slantsix.org/forum/viewtopic.php?t=26875 |
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| Author: | Kidd [ Sun Jan 27, 2008 3:41 pm ] |
| Post subject: | head interchange question |
Hello all, I have a 68 225 w/ the drool tube head. will a later model peanut plug head go onto it?Will I have to run the later rocker assembly? I guess I just need to know the interchange......I am trying to get away from the drool tube for my race motor. Any suggestions are greatly appreciated!! Andrew |
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| Author: | Aggressive Ted [ Sun Jan 27, 2008 4:36 pm ] |
| Post subject: | |
Andrew, I am using a 1978 peanut plug head, instead of the 1974 drool tube head on mine with no problem. Push rods and all fit just fine. I kept the 78 rocker assembly that cam with the head. I believe the assembly is interchangeable. I never like the drool tubes either. The new head does keep the engine allot cleaner. I have about 24,000 on it since the rebuild. Just be sure to seal the lower edge of the block with a little extra sealant and you will be fine. See Docs post for reference. See the "Oil leaking from block" post. It is on page two at the moment. |
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| Author: | DusterIdiot [ Sun Jan 27, 2008 7:46 pm ] |
| Post subject: | Yep... |
You can plug any slant head on your block, and the assemblies are interchangeable (except the 1981-1987 rocker arms meant for the no adjust hydro cam)... Quote: I am using a 1978 peanut plug head, instead of the 1974 drool tube head on mine with no problem. Push rods and all fit just fine. I kept the 78 rocker assembly that cam with the head. I believe the assembly is interchangeable.
One thing to note for the record I have a 1979 head, and the rear bolt on the rocker shaft is smaller (bore in the rocker shaft is also drilled slightly smaller) than the pre-78 heads (might be the 'tween change before the hydro cam heads came out...)-D.Idiot |
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| Author: | Kidd [ Mon Jan 28, 2008 4:44 pm ] |
| Post subject: | |
Thanks- So I can run the later head w/ paenut plugs, and run the earlier adjustable rockers? I have a new Comp cam....and springs....and will beed to get the valve lash right. Andrew |
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| Author: | Aggressive Ted [ Mon Jan 28, 2008 5:16 pm ] |
| Post subject: | |
Yes, the peanut plug heads I have seen through 1979 have all been adjustable. |
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| Author: | Kidd [ Mon Jan 28, 2008 6:15 pm ] |
| Post subject: | |
Now to start keeping an eye out for one.Thanks !! Andrew |
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| Author: | Doctor Dodge [ Mon Jan 28, 2008 10:50 pm ] |
| Post subject: | |
I have a few of them... drop me a PM. DD |
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| Author: | rock [ Tue Jan 29, 2008 7:09 am ] |
| Post subject: | Hi Kidd, here is something to watch about it |
Hello Kidd! You will find a thread in the forum in which various guys report various numbers of manifold studs holes going into the water jacket. Although a curiosity that they vary, it suggests that whatever head you use you might want to be sure to seal ALL the studs from water leaks unless you know for certain a hole doesn't need it. And not to steal from Doc, but I have a peanut head I would give away for shipping even though I had it hot tanked and magnafluxed as perfect. I am doing a great parts get gone since I basically finished my project. rock '64d100 |
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