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Original Message
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| RE: Solid cam in a hydraulic block? |
| By Mike McQuesten - 12/10/2001 10:34:40 PM; IP 63.50.108.202 |
Charlie is right that it is kinda standard thinking that you should plug the oil passages as he described it. However, I did run a solid lifter cam in my '69 428CJ without any problems. Well, except for two "self locking" adjusting screws losing their ability to stay locked. That had nothing to do with oiling. Even at the time I installed this cam I'd heard and read about doing the minor oil passage modification to block oil to the lifters. But it's interesting to note that Ford didn't make the recommendation in their Muscle Parts/Performance book published back in '69. One of the steps in their recommended "staged" performance up grades was to install the C3AE-AA solid lifter cam. By this stage they'd recommended pop up pistons and other mods like P.I. connecting rods. But nothing about blocking the hydraulic lifter passages.
With the solid lifter cam in the CJ, I'd shift the C6 I was running at that time at 6,200 rpms. It was a Schneider and it worked very well. The best cam I ran of the four I ran in that engine. But I will say that if you have the block out and are doing a rebuild, do make the modifications to block the oil to the hydraulics. It makes sense and it doesn't hurt a thing. I'm doing that to a C6ME 391 block at the same time I'm having machine work done to install a set of 427 cross bolt main caps. I'm having allen head set screws threaded in to the oil passages so that I can remove them easily and allow for solid or hydraulics.
As for lifter/valve lash adjustment, it was a normal maintenance procedure every ten thousand miles or so. Just part of a tune up that was normal about at that mileage interval back in the days of points, condensor, rotor, plugs, etc.
Why run a solid lifter cam Charlie asks? Good quesiton. I guess there are those of us who still like the clatter of solid lifters from any American V-8, especially the FE. To me, solid lifters in an FE meant high performance. Think about it, with the exception of the first three months of FE production when a low performance solid lifter cam was standard, FoMoCo saw fit to use solid lifters in the HP352,390,406, 427, and '66 428P.I. That ain't bad company.
I know there are great hydraulic grinds available. I've always been a proponent of the old GT/CJ cam, C6OZ-B, I even run one in my '68 F100 for hauling trash, parts, Christmas trees and sometimes I step on it just to haul ass. But ahh, solid lifters. I just enjoy pulling the valve covers and adjusting that valve lash....just because I can. |
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