Corvette Cam From C5 Into My 1999 5.3 Vortec

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Oct 28, 2008 | 10:39 AM

#21

thunder550

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From: Phoenix, AZ

The Vette has a larger displacement engine with a higher compression ratio. That's the primary reason for the power difference, not the cam, unfortunately.

Oct 29, 2008 | 09:47 AM

#22

Mark Johnson

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From: Santa Fe New Mexico

Thae LS6 cam is about perfect, but too wide of an LSA.............

Oct 29, 2008 | 10:31 AM

#23

zippy

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From: Las Vegas, NV

Quote:

Originally Posted by thunder550

The Vette has a larger displacement engine with a higher compression ratio. That's the primary reason for the power difference, not the cam, unfortunately.

As well as a better air intake, exhaust, cylinder heads, intake manifold, and factory premium fuel programming.

Last edited by zippy; Oct 29, 2008 at 10:51 AM.

Oct 29, 2008 | 12:02 PM

#24

whitegmc2003

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From: gainesville/melbourne florida

Quote:

Originally Posted by RANDHOOG1

Thanks,, for the record no i didn't install a chip,, i purchased an aftermarket programmer. They have chips correct...

I have found out after purchasing the Hypertech Programmer the gains i expected fell way short. Thus the reason to upgrade the camshaft. The 2002 C5 LS1 had 350 HP not a large increase but better than the 290hp my truck came with stock.

if all you were looking for was a little bit more power above the programmer sell it and try a custom tune... they're better and might get you to where you want the truck to be without the internal mods just yet.. over time it will always be to slow

Oct 29, 2008 | 03:48 PM

#25

RANDHOOG1

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270 hp

1999 (LM7) 5.3 Vortec,, a whole whopping 270 freaking HP stock. no wonder i wanted to to give it some help. Thats the weakest of the 5.3 motors that they manufactured. Definitely getting a cam, heads , Tune . Found a buyer for the hyper programmer. Ls6 cam, 80mm throttle, headers, ls6 intake and oh yes it's going to get a custom tune. a friend of mine has a drive on dyno... once i have completed this makeover i will post the numbers i acheive.

Thanks for your advice..

Oct 29, 2008 | 03:54 PM

#26

chevrolet all the way

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From: trussville alabama

good luck man!! keep us updated on the work!

Oct 29, 2008 | 04:04 PM

#27

zippy

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From: Las Vegas, NV

Cool, good luck. Make sure to check your injector duty cycle when you get it that far.

Oct 29, 2008 | 04:57 PM

#28

nonnieselman

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From: Crystal Springs, MS

The cam come out of a Camaro or Vette?

I highlighted them in Red...

Corvette LS1
97-98 12554710 199/207 .472/.479 117
98-99 12560964 199/207 .472/.479 117
2000 12560968 198/209 .500/.500 115.5
01-03 12561721 198/207 .467/.479 116

Corvette LS6
2001 12560950 204/211 .525/.525 116 385hp
02-04 12565308 204/218 .555/.551 117.5 405hp

Camaro/Firebird
98 12557812 198/209 .500/.500 119.5
99-00 12560965 198/209 .500/.500 119.5
01-02 12561721 196/207 .467/.479 116

Trucks and SUV with Vortec engine
LR4 and LM7
99 12560966 191/190 .457/.466 115.5
00-04 12560967 191/190 .457/.466 114
the 03-04 LM7 used the 12560967 camshaft

Oct 29, 2008 | 08:23 PM

#29

dirt track racer 81

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From: Hennessey, Oklahoma

waste of money on the 80mm throttle body

Oct 30, 2008 | 12:32 PM

#30

RANDHOOG1

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Cam

The Cam is out of a Vette, I have 2 to choose from. I have an LS3 cam from a
2006 GTO.. or the Ls6 cam from 04 vette..

Which would make my truck rock?

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