Proper Top End Rebuild

[garrett490]

What does this consist of?

[T77911S]

valve job
valve guides
rockers rebushed
rockers resurfaced
cam polish
piston and cylinders if alusil. (some have reused alusil pc's)
piston rings
P and C's if out of spec
check wrist pin bushings
if CIS:
replace injector sleeves
Orings
rubber sleeves on intake runners
vacuum lines
injectors cleaned and checked

optional:
clutch
at least a disk and TO bearing
pilot bearing

this is assuming no broken or pulled head studs.

[garrett490]

Perfect answer thank you. I'm a newb...is the valve job and valve guide and rocker work all done as apart of getting the heads rebuilt by Anchor Atlantic? Or are these separate tasks?

[T77911S]

sepertate. you will have to ask for them to be done.

the big issue is piston and cylinders

[Matt Romanowski]

I would suggest talking to Mark at Exotech (603-382-3599 or prschmn@comcast.net) for having the heads done. He does a ton of them and you'll find lots of happy customers around.

[gtc]

I recently had my heads and rockers done by Craig Garret (Pelican username cgarr).
He did great work, the turnaround was pretty quick, he communicated well, and his prices were very reasonable.
As far as Porsche machine work is concerned, I haven't seen those four qualities together anywhere else.

[garrett490]

Ok so these shops can do the valve job, valve guides, and rocker work when I send them my heads? Or do I send the valve stuff out to another shop? Sorry for my probably silly questions...it's just that the words valve job have almost no meaning to me so I'm not really sure if that is a task that Craig Garret, exotech, and anchor Atlantic do while they have the heads or if I send elsewhere as separate project.

[gregwils]

+1 for Craig. He did my heads and rockers a few years ago. IIRC, he is not set up to regrind the cam.

Originally Posted by gtc

I recently had my heads and rockers done by Craig Garret (Pelican username cgarr).
He did great work, the turnaround was pretty quick, he communicated well, and his prices were very reasonable.
As far as Porsche machine work is concerned, I haven't seen those four qualities together anywhere else.

[gregwils]

Originally Posted by garrett490

Ok so these shops can do the valve job, valve guides, and rocker work when I send them my heads? Or do I send the valve stuff out to another shop? Sorry for my probably silly questions...it's just that the words valve job have almost no meaning to me so I'm not really sure if that is a task that Craig Garret, exotech, and anchor Atlantic do while they have the heads or if I send elsewhere as separate project.

You will send the shop you choose the heads with the valves still installed. They will take it from there. No need to buy new valves if yours are still in spec, the shop will make that call for you. Heads will be returned assembled.

Rockers and cams can go separate ways, depends on who you use.

Here is my thread from four years ago.

[Matt Romanowski]

Originally Posted by garrett490

Ok so these shops can do the valve job, valve guides, and rocker work when I send them my heads? Or do I send the valve stuff out to another shop? Sorry for my probably silly questions...it's just that the words valve job have almost no meaning to me so I'm not really sure if that is a task that Craig Garret, exotech, and anchor Atlantic do while they have the heads or if I send elsewhere as separate project.

Not silly at all. You would take the heads off and send them everything (heads, valves, springs, retainers, etc all still together) along with your rockers. They will disassemble, clean, replace the valve guides, replace the seats if necessary, cut the valve seats, cut the valves, check seat angles and margins, set spring height, and reassemble. They will also surface the face of the rockers.

I'm guessing they could all take care of your cams, but most people (as in if they are not a cam shop) send them out to be reground. You could do that yourself or have the person doing your head take care of it.

[Roswell]

garrett - you have one of the best shops in the Southeast right around the corner Porsche Racing Goldcrest Motorsports: Racing

They love air cooled 911's

[chrisbruck]

Originally Posted by Roswell

garrett - you have one of the best shops in the Southeast right around the corner Porsche Racing Goldcrest Motorsports: Racing

They love air cooled 911's

+1000 on Goldcrest Motorsports

I literally just picked my car up Tuesday from them after having the top end rebuilt. Excellent work and extremely happy so far (except that my car is stuck in my garage with some bugs unrelated to what they did).

[hcoles]

you may want to inspect the cam sprockets, chains, ramps. I shimmed the idler arm to limit travel. You can also consider installing tensioner limit devices. I used the spacer inside the barrel method.

[garrett490]

Originally Posted by Roswell

garrett - you have one of the best shops in the Southeast right around the corner Porsche Racing Goldcrest Motorsports: Racing

They love air cooled 911's

Thank you, I also remembered theres a race engine shop in Acworth (15 mins from my house) called Goza...he's gonna rebuild my heads and does work for Porsche mechanics in the Atlanta area.