Oil pump and Timing chain replacement

[FrangaFry]

hi folks, looking at doing a rebuild of my Ls1 in the not too distant future and slowly collecting bits ....

Keen to replace the oil pump and timing chain whilst it's apart. As usual looking for some folks thoughts on direction.

Have done the usual search but this seems to be one of those 'how long is a bit of string' subjects.

The general consensus seems to be no need for double row timing chain as it's not going to be a killer build (just a freshen up with a few tougher parts). So what would folk recommend? Have done some poking around and a double seems to be round the same price as a good single (LS7) or am I missing something? I also note that clearance can be an issue with double (SLP do a pre clearanced oil pump yeah?)

Any gotchas I need to know about? What are you guys using (part number would be great) and where did you get them from?

As always, thanks for your thoughts

[FrangaFry]

.... No one? *grin*

[IJ.]

Moroso HV/HP pump in the big engine, L98 Pump in the 5.7, stock Holden chains in both.

[Toddler78]

just put a LS2 timing chain in, it will be plenty strong enough

[FrangaFry]

Thanks guys, appreciate the advice

[blackvussii]

When I installed heads and cam on my ls1 I put in a ported and shimmed ls6 pump and a ls2 chain which have gone great for 60k.

Building a ls3 now and going to use a C5R chain and either my ls6 pump or a Mellings hv or hp

[FrangaFry]

Hi guys, just a quick clarification, the LS2 chain and gears are a package yeah so these come as a set and no need to buy separately (don't need to get gears specifically for an LS1)

With the pump (l98 or ls6) are there any gotchas - do I need to get a specific O ring or seal etc or all this also comes as a package? For a nuffy like me I get a little gun shy with this sort of stuff so just need to make sure I don't F it up .....

Thanks as always for the advice and support.

Cheers

Franga

[blackvussii]

Ls2 chain fits on the ls1 sprockets, no need to change anything. Standard o-ring on the pick up for the ls6 pump, I presume l98 is the same. If you are doing the work yourself with the engine in car the pick-up bolt is a little tricky. Have to be careful not to drop it in the sump

[Toddler78]

From Memory, the LS2 chain is the standard replacement now for the LS1 ( ie ls1 chain does not exist anymore)
use the standard ls1 gears as the LS2 gears are single bolt(?) and wont bolt up to your cam.

as Black said if doing it yourself make sure you don't drop the pickup bolt, and also be VERY VERY careful that you don't pinch thepick up Oring other wise no oil pressure for you

[beno]

Ive just done a oil pump in a L76 (6L) and im just in mooroolbark. If you get stuck, I will be able to pop over to help &/OR PM me.
I did remove the motor tho so I didnt risk dropping the oil pickup bolt.
Another gotcha is the harmonic balancer.. it can be tough to remove as it probs hasnt been removed in the last 14yrs.. there are cool tools made by G&G technics that are specific for the LS1 balancer, it takes 2mins to remove it but it costs around $180 for it. IMO, its worth getting this to avoid any damage to the crank when trying to pull the balancer.

[FrangaFry]

Howdy folks, i'm back with some more stupid questions.

Recently picked up a new oil pump, so all good there; Want to swing my attention to timing chain/set. Called a few GM dealers for local prices on relevant parts etc and also started looking up what's on offer on-line.

Is it just me or am I missing something:

Part Number: Description GMH Dealer
12589016 RETAINER-CM/SHF $86.48
11515756 BOLT/SCREW CM/SHF $16.52
12646386 CHAIN ASM-TMG $63.14
12552953 SPROCKET-CM/SHF $102.57
12556582 SPROCKET-CR/SHF $49.87
12588670 DAMPENER ASM-TMG CHAIN $141.28

Parts sourced from the states (even with USD + delivery) just seem so much cheaper (I mean, the dampner for instance is like $16.99USD, where as local $141.28AUD - am I getting something wrong?). Are these inferior quality stuff (Summit, Jegs, GMPartsonline etc); Do I need to double/triple check part numbers as they could be different in the sates than locally.

I am a nuffy guys, so be gentle....

Cheers,

[Toddler78]

welcome to the dealer rim job.

being a ls1 you wont need the retainers anyway - just the chain

[blackvussii]

Dont bother with holden, their prices are beyond extortionate. I was quoted 1100 for lifters that I ended up getting for 125 from the states.
Summit are good as they have a freight calculator that is pretty reasonable but I use pace performance as Greg the guy I have ordered through uses usps for freight who are the cheapest. Contact greg@paceperformance.com. If you have the gm part numbers then summit, pace, hinson, etc are the go.
Think I paid about 45 for the chain, like toddler said dont worry the rest of it. If the sprockets are worn they should be about $80 total

[ls2 cruiser]

Ls1's don't have a tensioner or damper like the ls2 set up and L98. The 2 bolt holes are not there for the plastic damper like the ls2. Don't know what the retainer is. What about a gasket for the timing cover. The balancer bolt can be reused. I do anyhow. Just put some blue max silicon around under the bolt head. What about a new front main seal as well. You should replace it unless it is new.

[BLACKVE]

I know the local price on tensioner is technically a HSV part so the $$$$

I've noticed that postage from US seems to have gone up latley( I bought parts from us 5 years ago)

Some parts were cheaper from GM Motorsport