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L83 Cam Swap

Evanski9

By Evanski9
in Engines & Drivetrain

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heavydiesel23 Enthusiast

heavydiesel23

Posted
Posted

I spoke to comp cams. Here's what I bought for my `14 5.3

 

Comp cam 624-512-13 hydraulic roller cam

Phase limiter 5456

Spring kit 26925ts -kit

 

The cam and phase limiter will cost 502.18 thru compcam

 

The springs run about 436.39

 

You will need a tune. Hardened rods recommended. Rockers can remain stock. Lifters are recommended to be swapped too. Hope this helps

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heavydiesel23 Enthusiast

heavydiesel23

Posted
Posted

I cammed my truck. Comp cam recommended 624-512-13 cam 5456 phase limiter

And 26925ts -kit for the springs. Cam and limiter are 502.18

I cammed my truck. Comp cam recommended 624-512-13 cam 5456 phase limiter

And 26925ts -kit for the springs. Cam and limiter are 502.18

  • 2 months later...
NewBGMC5.3 New Member

NewBGMC5.3

Posted
Posted

I'm waiting for it to show up. I have a couple more mods to do in conjunction. Need to gather all the parts.

Any updates on your LT1 cam?

Spurshot Senior Enthusiast

Spurshot

Posted
Posted

Any updates on your LT1 cam?

I bought a SS Camaro instead. Goes fast, more fun to drive than the truck.

 

If anyone is interested in the cam, PM me or look in the classified section of the forum.

 

I%20drive%20_zpslyicwkiw.jpg

  • 4 months later...
rjw Enthusiast

rjw

Posted
Posted

ran into this thread while trying to get info on swapping cams

 

not much out there, so I jumped in and did it myself. cam, springs and injectors along with a 2.9? whipple, on my son's 2105 Silverado LTZ .

 

I am in the tuning stages (hp tuners)

 

Anyone wanting to do this themselves, I used a few tricks, not mentioned anywhere that I've looked.

 

Started by buying a 1 month subscription to Chilton online. Some good info, but cam swap begins with removing the engine....lol

SouthPawCO Enthusiast

SouthPawCO

Posted
Posted

ran into this thread while trying to get info on swapping cams

 

not much out there, so I jumped in and did it myself. cam, springs and injectors along with a 2.9? whipple, on my son's 2105 Silverado LTZ .

 

I am in the tuning stages (hp tuners)

 

Anyone wanting to do this themselves, I used a few tricks, not mentioned anywhere that I've looked.

 

Started by buying a 1 month subscription to Chilton online. Some good info, but cam swap begins with removing the engine....lol

 

Props to you. That is some labor intensive work right there. Post up some vids and dyno numbers.

rjw Enthusiast

rjw

Posted
Posted

Will do.... anyone wanting to do this themselves, let me know, I might be able to answer some questions or fill in some blanks

rjw Enthusiast

rjw

Posted
Posted

You did the LT4 cam right? i'm over on performance trucks site.

 

RT

yes...lt4 cam, valve springs and injectors...similar to kb

rjw Enthusiast

rjw

Posted
Posted

why would you have to remove the engine to swap the camshaft? Is there not enough room after taking the radiator out?

no, don't remove the engine, just the radiator and in my case , move the ac condenser out of the way

 

invest $16 for 1 month of Chilton online, but ignore the first step 'remove engine' lol

 

other notes: the oil pan does not have to be lowered, the oil pump stays put. alternator, ac compressor, water pump and front timing cover, including 2 bolts to the oil pan must be removed. The harmonic balancer is a tough one, it took a 700 ft. lbs impact gun to remove the bolt ( tty not reusable and a standard 3 jaw puller with short jaws to remove the balancer (it is keyed)

 

when timing cover is off, rotate crank until cam timing mark is lined up either straight up or down and place a witness mark on something non moveable. This is needed in that the crank sprocket timing mark is hidden behind the oil pump. cam is held in by 1 bolt, very tight . It is part of what they call the cmp actuator and is not reusable (tty)

 

rockers and pushrods removed, cam is spun to lift the lifters, 5/16" dowels to insure that they don't drop , timing chain tensioner has to have tension released, remove the phaser/cam sprocket and cam retaining plate and out pops the cam.

 

without moving the crank, line up cam with the pin at 3 o'clock , phaser/cam gear with the arrow pointing to witness mark and assemble with new actuator bolt (tty)

 

it's like any other ls cam change with a few twists.

hirdlej Enthusiast

hirdlej

Posted
Posted

By the way, don't forget to do a C.A.S.E. learn with the PCM after doing a cam swap. It sync's up the camshaft timing to the cam sensor for more accurate spark and fuel injector firing. I did this with every cam swap I did in the 99-07 trucks. :)

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