Removing DOD hardware & fitting a larger camshaft

[-Ray-]

Send it to me, I'll measure it for you.

[G8GT721]

are new bolts required for lifter guides and rockers?

[Crazy Paul]

are new bolts required for lifter guides and rockers?

No & No.

[ULTRA Z]

if i get this http://www.texas-speed.com/p-644-n-m...iming-set.aspx


will i still need to get this ?
2) 12586481
Camshaft Sprocket
• Fits LS1, LS2 and LS6
• 4X camshaft gear
• 3-bolt design;
uses (3) bolts P/N 12556127

i'm trying to gather all my stuff up but don't want extra parts lol thanks i got 77,000 plus miles so i figured i might as well change it

[Crazy Paul]

if i get this http://www.texas-speed.com/p-644-n-m...iming-set.aspx
will i still need to get this ?
2) 12586481

No, provided they send you the correct timing kit as per description.
(Sprocket in kit needs to have 4 timing lumps, check before installing).

[ULTRA Z]

thanks its getting cheaper and cheaper lol if i would have got a price on all this from my dealer i would have done this in 2009 lol its really not that bad $$$

[Crazy Paul]

So who here has pulled this valve and replaced it with a plug? Do you know what thread it is?

Here you go.



Originally the GM AFM relief valve was Part Number 12594579, this was superceded in June 2006 by the new current Part Number 12608835.
The valve has a diameter of 19mm and has a hexagonal 17mm AF section at the top.
Underhead length is 14mm with only 11.5mm of it being threaded, the lower 2.5mm has no thread.
The thread is M14 x 1.50mm










A suitable plug IMO would be the Dorman Auto Grade Oil-Tite Drain Plug Part No 65386.
This plug comes with a copper crush washer to seal the thread.
65386 thread is M14 x 1.50
Hex head is 19mm AF
Underhead length is 12.3mm (you lose about 1.5mm of thread engagement due to the thickness of the copper crush washer, so the 65386 will still utilise the approx 11 mm depth of thread as the original valve).

Dorman 65386

[hflores3]

The larger capacity ZL1 oil pan that Greg @ Pace had been selling.....wouldn't that come without the GM AFM releif plug? I've got one of those in the garage -- that my be my ticket - eh?

[Chewy]

Great thread! It's really enlightened me on the whole project of cam swaps. This is something I'll be doing as soon as I take delivery of my new DD this spring.

[TLS]

Here you go.



Originally the GM AFM relief valve was Part Number 12594579, this was superceded in June 2006 by the new current Part Number 12608835.
The valve has a diameter of 19mm and has a hexagonal 17mm AF section at the top.
Underhead length is 14mm with only 11.5mm of it being threaded, the lower 2.5mm has no thread.
The thread is M14 x 1.50mm










A suitable plug IMO would be the Dorman Auto Grade Oil-Tite Drain Plug Part No 65386.
This plug comes with a copper crush washer to seal the thread.
65386 thread is M14 x 1.50
Hex head is 19mm AF
Underhead length is 12.3mm (you lose about 1.5mm of thread engagement due to the thickness of the copper crush washer, so the 65386 will still utilise the approx 11 mm depth of thread as the original valve).

Dorman 65386

Paul, is this valve the culprit that is spraying the crankcase full of misty oil and it then getting sucked through the PCV system and pooling the intakes and causing my burning oil smell? I believe there is a bulletin about a shroud or cap to be installed over this to prevent the oil spray? I'm about to give up on why my car fills with burnt oil smell for the first 500-1000 miles after a TOTALLY clean (no spills) oil change.