4AGE head without cam caps, anything special needed to replace them?

[TERRA Operative]

I've got a 4AGE bigport head that I want to build up, however, I have realised that I don't have the caps that hold the cams in...

Can I just source a new set (from Toyota or wrecker etc) and just use them, or will they need to be 'adjusted' to suit the cam seat in the head?

What's the go with this sort of thing?
Thanks.

[af300e]

Maybe you could fluke it and find a set that fit, but generally, they are fitted as blanks and then tunnel bored. How many do you need?

[TERRA Operative]

The whole lot....

[TERRA Operative]

.............

[af300e]

Ok, in that case, after you price a set, I have a complete head I can sell you

[TERRA Operative]

So you can't get them?

[af300e]

I'm not sure for 4age, but I had a mitsu diesel 4d56 and it needed one (thread for rocker shaft had been fudged beyond repair) and either they were seriously dear or, I couldn't get them (can't remember which it was).
I was able to buy some used ones, get a close match (too small) and machine it out on the lathe to suit.
Not a good/easy situation to be in.

Perhaps 4age is better with availablity or, maybe toyota tolerances are tighter than mitsu and another set may fit?

[TERRA Operative]

Hmmm. I could pull the ones off my 4AGZE when it comes time to swap. I'll have to measure it....

[Cuzzo]

You have to remember they have been worn in with the cams it runs.

Different cams / different caps can excessivly wear the cams.

You may want to get new ones. However where from i dont know.

Try ringing a 4age builder?

[Mr Revhead]

you cannot buy them seperate
if you got some from somewhere, you would need to get them bored
prob easier to just get another head

[LeeRoy]

You have to remember they have been worn in with the cams it runs.

Different cams / different caps can excessivly wear the cams.

You may want to get new ones. However where from i dont know.

Try ringing a 4age builder?

So whats the procedure when new cams (ie aftermarket/performance) are installed?

[TERRA Operative]

Ok. Anyone got a spare bigport 4AGE head?

[Cuzzo]

I always thought that when new cams get installed shims need to be adjusted for the correct clearance.

[TERRA Operative]

Shims yes, the caps that hold the cams down, no.

[Cuzzo]

Shims yes, the caps that hold the cams down, no.

Yes so with the shims adjusted the clearances need to be checked top and bottom of the cam?

I have never done it before but this is my understanding.