I'm doing a full performance rebuild on a head, and had some questions I'm pretty sure I know the answer to, but are worth asking nonetheless.

I plan on replacing all of my valve locks. Is there any reason to pick the 30 dollar valve locks over the 8 dollar SBI locks from Parts Dinosaur? I'm really hoping I'm not missing something here.

I'm also replacing my guides, I believe. I see cast iron and brass, and don't know what the benefits of each are. Someone please fill me in?

My last question is on valve springs and retainers. I already know I'm going with titanium retainers, and uprated springs. Is a spring is a spring is a spring? I assume they probably have different rates. Someone point me in the right direction?

Thanks,
Jake

P.S. Mikey, No thanks.

I'm broke, it's broken. I'm broke because it's broken. It's broken because I'm broke.

Simplicity Car Club - Founding Member

Valve Locks can be purchased from PartsDinosaur and they will work fine. They are not really a wearing part if you know what I mean.

Get some Crower springs.

For Valve guides I am running SI brand bronze valve guides. They work great.

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2012 2500HD LML

Source on the guides?

I'm broke, it's broken. I'm broke because it's broken. It's broken because I'm broke.

Simplicity Car Club - Founding Member

Not sure, the machine shop ordered mine after I let them know what I wanted. The part number is VG 9038/00, as seen here:

http://www.sivalves.com/ocforeign_vguides_mits.html

I think you can order them right from SI. Otherwise call them up and find a distributor.

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2012 2500HD LML

+1 on the machine shop.

Funny thing, I had a problem sourcing mine out also. I ended up having my machine shop order them for me.

Captain Caveman

96 RS Turbo 11.414 @ 119.62 MSNS, Crower 2 NA cams, BW366, 10.5 comp, UDP, 60mm TB, W/A intercooler, 3.55 tranny 567.9whp 430tq
97 RS NA 13.188 @ 103.87 MSnS powered 12.5 comp, Crower 3's and 219.4whp with 175tq
98 RS DD 12.5 comp on stock ECU, LTH, Crower 2's, Koni, GC, Hypercoil, DG hats
99 OZ 5sp Stocker 15.856 @ 85.97
99 GS stocker auto 17.7@77mph!

wiki home page:http://www.2gnt.com/index.php?d=bullettdsm

-MIKE-

Stroked 2.2L

Got a reply direct from the company. 4.95 per.

I'm broke, it's broken. I'm broke because it's broken. It's broken because I'm broke.

Simplicity Car Club - Founding Member

The valve springs are really important especially if you plan on going to high rpms or redline it alot daily driving like i do . Get the stiffest springs you can find and have fun hitting 8000 rpms without problems. Also if you get performance camshafts look into rhoads lifters definately worth what youll pay for them helps out alot under the curve and wont effect the peak power.