1FZ-FE - Cylinder Head Replacement

[Fj80oregon]

So it's a year later and I am finally getting around to this build.

I am using a new head, valves & springs. Reusing cams, buckets, shims, retainers &keepers.

Lapped the valves and checked for leaks. All good.

With regard to measuring valve clearance, does it make more sense to do this on my bench or with the head mounted to the block (on an engine stand)? I understand I can do it either way, but wondering what the rest of you all would do. Seems to me it would be less work to wait until the head is mounted to the block.

Do it on the bench

 

[chbrow10]

Does the new OEM head come with the valve seats and valve guides installled?

 

[discoverydave]

Valve clearance check on the bench makes sense if you want to get everything dialed in before install, but honestly I've always done it after mounting to the block on a stand — you're getting a more realistic measurement that way since the head is under its own weight and you've got it torqued down. Either works as long as you're patient with the shim selection.

One thing worth mentioning: if you're reusing the original buckets and shims, label absolutely everything before you start. I made the mistake once of mixing up shims across cylinders thinking I'd remember the order, and then spent twice as long sorting them back out. Little zip-lock bags with a Sharpie on each one. Takes five minutes and saves a lot of grief later.

 

[Fj80oregon]

Does the new OEM head come with the valve seats and valve guides installled?

Yes