LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Cam swap parts

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Old Jun 8, 2009 | 04:28 AM
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Default Cam swap parts

Well my little pile of parts for the cam swap is building up.



So far I have the cam from comp, patriot dual gold springs, guideplates should be here this wk, ac delete I'm gonna do at the same time should be here as well.

Still need a GM timing chain, anyone got a link for that?

and a set of Comp Ultra Pro Mag rockers

and all the gaskets.

What about ARP cam bolts, are those a necessity or just a feel good thing? I would imagine reusing the stock ones would't be a problem.

My buddy has a checking pushrod we will use to see what PR's I need.

Gonna reuse the stock lifters as long as they look good.

Can you guys think of anything else? I can't wait to get this put in and screamin
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Old Jun 8, 2009 | 11:24 AM
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Originally Posted by gregrob
Well my little pile of parts for the cam swap is building up.

So far I have the cam from comp, patriot dual gold springs, guideplates should be here this wk, ac delete I'm gonna do at the same time should be here as well.

Still need a GM timing chain, anyone got a link for that?

and a set of Comp Ultra Pro Mag rockers

and all the gaskets.

What about ARP cam bolts, are those a necessity or just a feel good thing? I would imagine reusing the stock ones would't be a problem.

My buddy has a checking pushrod we will use to see what PR's I need.

Gonna reuse the stock lifters as long as they look good.

Can you guys think of anything else? I can't wait to get this put in and screamin
Very nice. Good to see someone using quality parts and not skimping on the cost and/or work...

You can get the timing set form GMPartsDirect.
Cam sprocket - part #: 10128349
Crank sprocket - part #: 10128346
Chain - part #: 10128485
Total cost should be ~$92.38

I reused my stock cam bolts and stock lifters without issue.
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Old Jun 8, 2009 | 02:17 PM
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i would get new lifters
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Old Jun 8, 2009 | 02:31 PM
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You need timing chain gasket, water pump gaskets, and the 2 new seals for the timing chain. You can reuse the valve cover gasket and the oil pan gasket, but you'll want to get some rtv on the oil pan gasket when you reassemble.

You aren't going to need any exotic pushrod or anything. You could have just asked around to see what other guys run. I ran a chromoly Trickflow pushrod set in a slightly longer than stock size. I can't remember offhand what the size was though. I'm thinking .100" iirc

Whne you get some crazy solid roller, your heads are milled, new lifters etc, then it is very important to get the perfect pushrod in there.
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Old Jun 8, 2009 | 10:03 PM
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make sure to get the hardened pushrods size you have guideplates.
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Old Jun 9, 2009 | 02:05 AM
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thanks a lot guys.
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Old Jun 15, 2009 | 04:09 AM
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GMPP Guideplates showed up this wknd. Thanks lownslow
Attached Thumbnails Cam swap parts-guideplates.gif  

Last edited by gregrob; Jun 15, 2009 at 04:20 AM.
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Old Jun 15, 2009 | 04:19 AM
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Originally Posted by litch2004
make sure to get the hardened pushrods size you have guideplates.
Originally Posted by gregrob
thanks a lot guys.
FWIW -

There are several reports that GMPP guideplates are NOT hardened. If you use them with hardened pushrods, they will slowly chew into the guideplate and misalign the pushrod. I would invest in some chrome-moly Trick Flows, Isky's, etc., to be safe.
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Old Jun 15, 2009 | 04:21 AM
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Originally Posted by RamAir95TA
FWIW -

There are several reports that GMPP guideplates are NOT hardened. If you use them with hardened pushrods, they will slowly chew into the guideplate and misalign the pushrod. I would invest in some chrome-moly Trick Flows, Isky's, etc., to be safe.
Guideplates or PR's?
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Old Jun 15, 2009 | 04:24 AM
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Originally Posted by gregrob
Guideplates or PR's?
Guideplates (hopefully you're using hardened pushrods too). I used the GMPPs for a short while (400 miles) and saw very minor gashing when used with my Comp hardened plates. Keep in mind that some people say it's not a problem, but others will. For the modest price of guideplates, I'd be safe.

My new motor has chrome-moly Trick Flow plates.
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Old Jun 15, 2009 | 04:27 AM
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Thanks. I'll use these for now and keep an eye on them.

What about non-harded plates AND pushrods lol
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Old Jun 15, 2009 | 04:31 AM
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Originally Posted by gregrob
Thanks. I'll use these for now and keep an eye on them.

What about non-harded plates AND pushrods lol
Now you're just being silly. Hah.

Don't just take my word for it though. Do a little research. It's going to be much easier to just install the right hardened guideplates now as opposed to waiting down the line when the GMPPs start to wear (not saying it will happen for sure). I don't know if money is an object, but it's something you should consider now. It's one of those "do it right the first time" deals.

If you're still comfortable with the GMPPs, you've got more guts than me.
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Old Jun 16, 2009 | 02:59 AM
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Thanks for the input Joe.

A/C delete showed up today:
Attached Thumbnails Cam swap parts-acdeletepulley.jpg  
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Old Aug 11, 2009 | 03:51 AM
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Bumping this back up. Funds have become available to finish this so I should be ordering some Comp ultra pro mags, timing set and all the gaskets this week.

Anyone think of anything else I'll need?

Is there a "cam swap gasket kit" anywhere? Or will I have to get them all individually.

Not tough just a pita to think of each gasket I'll need.

I'm guessing WP gaskets, timing cover gasket, intake mani gaskets, and... what else?

I can't decide if I want to do EWP right now and go double roller or just leave my brand new mech water pump on there for now and go single.
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Old Aug 11, 2009 | 03:52 AM
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Oh, and should I get rockers for the stock 3/8"s studs or get the 7/16"s version and swap them? Do you really need the beeifer 7/16 studs?
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Old Aug 11, 2009 | 08:32 AM
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thunder racing used to offer gasket kits, I don't see them listed anymore but I'm sure if you called they'd put one together for you. nows a good time to ditch the EGR and AIR so you should look into some block off plates too imo, if not you'll need a new gasket for the egr tube aswell(block off kits come with gaskets btw)
Originally Posted by RamAir95TA
FWIW -

There are several reports that GMPP guideplates are NOT hardened. If you use them with hardened pushrods, they will slowly chew into the guideplate and misalign the pushrod. I would invest in some chrome-moly Trick Flows, Isky's, etc., to be safe.
you could always harden the guide plates, very simple process
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Old Aug 11, 2009 | 11:23 AM
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Felpro SS72861 valve stem seals
Felpro TCS45956 timing cover gasket kit
Felpro MS95580 intake manifold gaskets

Yes, get 7/16" rocker arm studs and get NSA rr's for a 7/16" stud and pick up some guideplates. You might as well get the EWP and DR timing set. Do it once, do it right.

ARP 134-7103 7/16" rocker arm studs
TFS 30400623-8 guideplates

Cloyes 3145 DR timing set is a popular choice.
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Old Aug 11, 2009 | 12:23 PM
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Thanks guys. EGR/AIR is already gone
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Old Aug 11, 2009 | 04:08 PM
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When I did a cam swap several weeks ago I bought a complete Fel-Pro timing chain cover set which included new seals for the timing chain cover - Tap Off - Tap On - just as a precaution against a leak when everything was bolted back together.

I totally agree, if you want better valve train rigidity, move to 7/16" ARP studs and 7/16" NON-SELF Aligning rockers.

I'd definitely recommend degreeing-in the cam too, expecially after what Karl Ellwein went through when two of his cams checked 8 degrees advanced; four degrees too much.

Also, you'll need a puller and an installer for the hub. You can probably borrow them from AutoZone or O'Reilly's.

Jake

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Old Aug 11, 2009 | 04:27 PM
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Thanks Jake. My cam has 5deg of advance ground in so its already set ahead pretty good. I had an adcole profile ran on it to make sure it was right though and its very close to what I spec'd.

Where did you pick up that gasket kit
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