LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Parts required for cam swap

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Old 12-08-2008, 09:10 PM
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Parts required for cam swap

I had a lifter come apart in my LT1. Since I have to pull the intake off anyways to get to the lifter, I think I might as well stab in my LT4 hotcam.

Help me ensure I get all the proper parts for my swap.

Front timing gasket set:
-timing cover gasket
-water pump gaskets
-front main seal

Intake gasket set:
-intake gaskets
-throttle body gasket

Pushrods:
help me pick a set of good hardened pushrods. Can someone provide me a link from summit or a reputable sponsor? I'm having trouble with summit's search funtion right now.

Lifters:
Since I had one explode on me, I might as well replace them all. Can someone recommend/link me to a good lifter set?

Are there any other parts I'll need that I haven't listed? I've had alot of trouble the past couple months with an unreliable valvetrain. I'd really like to take my time, use high quality parts, and do this right the first time.

BTW, I already have lunati springs, 1.6rr's installed, and a hotcam in a box in my garage.
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Old 12-09-2008, 09:47 AM
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You'll need RTV for the intake and it also works to keep the water pump gaskets on while you install it. I like the Copper High Temp, but Ultra Black works, too. Some others like The Right Stuff, but it's up to you.

You don't have to use assembly lube on the cam, but it's only a couple bucks and it couldn't hurt to put it on the bearing surfaces. Just some oil on the lobes is fine.

You'll also need everything for a full oil change. No matter what you do, dirt and grit will get in the motor. Once the motor runs for a minute after you're done, change the oil right away. There is no break in for a cam swap.

You need coolant. I went ahead and did a full flush when I did the cam swap. Prestone I think has both a flush and a kit to make it a little less messy.

Pushrods: I'd suggest getting chromemoly in 7.2". They are more expensive than the hardened ones, but are worth it.
http://thunderracing.com/catalog/?ac...vid=4&pcid=106

Lifters: Just get Crane stock replacements. You will probably get suggestions for LS7 lifters, but I haven't had any experience with them and stock replacements are fine for your application.
http://www.jegs.com/i/Crane/270/10530-16/10002/-1
or
http://thunderracing.com/catalog/?ac...vid=4&pcid=107

Last edited by seawolf06; 12-09-2008 at 09:58 AM.
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Old 12-09-2008, 11:40 AM
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don't forget AC refridgerant unless you want to risk snapping the condesor line by bending it

I'd say hardened pushrods ($30 brand new from comp) or more than enough for a hotcammed car, it's not like he's going to be revving to moon and have .600+ lift
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Old 12-09-2008, 11:43 AM
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Replace timing chain?
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Old 12-09-2008, 11:49 AM
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^+1 those things love to get loose after some mileage and they're cheap as dirt so why not
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Old 12-09-2008, 11:57 AM
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Originally Posted by km9v
Replace timing chain?
I completely forgot about that one. Also upgrade to ARP bolts where you can!
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Old 12-09-2008, 12:17 PM
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LT4 ED timing kit
12370835

GM Lifters
12499225 set
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Old 12-09-2008, 02:36 PM
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LS7 lifters. Save yourself $75.
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Old 12-09-2008, 02:48 PM
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Be careful....things add up....here is what I spent.....

http://www.ace1252.com/Z28_CC503_Per...ce_Buildup.xls
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Old 12-09-2008, 02:52 PM
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Originally Posted by ACE1252
Be careful....things add up....here is what I spent.....

http://www.ace1252.com/Z28_CC503_Per...ce_Buildup.xls
That is a LOT more than just a cam swap.
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Old 12-09-2008, 04:54 PM
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my cc503 swap was pretty cheap, around $600 or so tops, then again I bought alot of used things
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Old 12-09-2008, 08:12 PM
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Originally Posted by Muncie4sp
LT4 ED timing kit
12370835

GM Lifters
12499225 set
Originally Posted by 94Z28rag
LS7 lifters. Save yourself $75.
I just looked up those lifters on gmpartsdirect, and they were only $108 for a set. Comp or GM lifters were $230, and advance autoparts had an el cheapo chinese set for $166.

Frankly, I wouldn't mind getting the LS7 lifters, due to their RPM capability and the LOW LOW price. WHat pushrods do I need with those? Aren't the stock pushrods for the LT1 7.05"? What p-rods do I need for the LS7 lifters?
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Old 12-09-2008, 08:13 PM
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Stock lt1 pushrods are 7.2". I'm not sure if the LS7 lifter requires a different pushrod or not.

There are a lot of threads about them here. Try searching.
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Old 12-09-2008, 09:08 PM
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Originally Posted by seawolf06
Stock lt1 pushrods are 7.2". I'm not sure if the LS7 lifter requires a different pushrod or not.

There are a lot of threads about them here. Try searching.
They should require longer pushrods IIRC. Get the tool and check to be sure.
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Old 12-09-2008, 09:13 PM
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Originally Posted by 6SpdLT1Z
They should require longer pushrods IIRC. Get the tool and check to be sure.
My car is sitting dormant with a blown lifter. I'm sharing a car with my wife right now.

I think I"m gonna call thunder tommorrow, and just have them set me up with a complete, fool proof, bolt in kit.

Shoebox's guide will be my bible.
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