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Anyone had any experience converting from the later electronic actuation to earlier mechanical? I've got the heads from both and would like to to run the earlier VVT in the later head. It would be nice to know if the earlier VVT is a "bolt on" converstion to the later intake cam.

If it turns out I need to mess with valve shims anyway (haven't taken a measurement on the later engine yet), I might just use the entire cam + VVT from the earlier engine. Anyone know if those are compatible?

Thanks.
 

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It should be a bolt in operation if you swap the complete camshafts (you can not swap just the VVT device). The cam cover is different on the later VVT engine for the solenoid attachment. So, use the earlier VVT & the cam cover from that engine. Secure the solenoid operating wires - cover any exposed terminals - and tuck it out of the way. Don't cut or remove it so it can be re-used if you or a future owner wants to revert back to solenoid operated VVT.
Thanks, Eric. I might have used the electronic VVT except that it suffers from the typical failed bushing and I prefer the look of the earlier cam cover. The '86 engine is going in the '84, using the '84's harness and probably its plenum and TPS so the later VVT wiring won't be an issue. Good thing, too, as the later harness was a hash. I guess I will be purchasing some new valve shims, after I swap the cams.
 
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