Still working on this, found this pic of a hydraulic rocker assy. and it would appear that the rear bolt is not only longer than the others , it is also narrower?
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| Yet Another Head Interchangeability Question..... https://www.slantsix.org/forum/viewtopic.php?t=17863 |
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| Author: | dart63 [ Sat Jun 03, 2006 7:34 am ] |
| Post subject: | Yet Another Head Interchangeability Question..... |
I'm finally getting around to replacing the Cylinder head on my 65 Sweptline pickup and suddenly the market for rebuilt heads seems to have dried up, used to be a ton of sources for them on Ebay, they've vanished... I did find a recently rebuilt head off an 87 Van with hydraulic set-up. If I use this head, my original mechanical Lifter/rocker set-up that's on the truck I should be OK, right? I believe there is an issue with the rear rocker bolt hole in the head, and that is my only question at this point. Do I need to find the bolt for an 87 rocker set-up, or will the rear bolt from my mechanical set-up work? I recall reading somewhere that the rear bolt will create oiling issues if it is not the right one. I also will need a different valve cover and gasket which should be no problem to procure. Thanks in advance for any advice. Kevin |
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| Author: | Doctor Dodge [ Sat Jun 03, 2006 8:16 am ] |
| Post subject: | |
The rear rocker shaft hold down bolt is different for the 80 and up hyd. head. This bolt has a step and a smaller thread. (5 / 16 - 18 unc) With the correct bolt, (and push rods) the adjustable (mechanical) rocker arm shaft can be mounted. DD |
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| Author: | dart63 [ Sat Jun 03, 2006 8:19 am ] |
| Post subject: | |
Still working on this, found this pic of a hydraulic rocker assy. and it would appear that the rear bolt is not only longer than the others , it is also narrower?
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| Author: | dart63 [ Sat Jun 03, 2006 8:22 am ] |
| Post subject: | |
Thanks Doug, so just to be certain, when you say the proper push rods, you mean the ones that are already on the truck..which are for a 225 with mechanical lifters and mechanical rocker assy.? Thanks |
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| Author: | DusterIdiot [ Sat Jun 03, 2006 2:35 pm ] |
| Post subject: | Yep. |
Quote: when you say the proper push rods, you mean the ones that are already on the truck..which are for a 225 with mechanical lifters and mechanical rocker assy
yep. |
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