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Old Jul 31, 2011 | 06:24 PM
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Default camming a truck

i have an 03 avalanche with a 5.3 in it. Im looking for a little bit more power.
i was thinking about puting a stock c5 cam in it. reason being is that i can do it for free. my friend and i did a h/c swap on his 99 vette, and he said i can use his stock stuff.

anyone think it would be worth it?
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Old Jul 31, 2011 | 06:33 PM
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Originally Posted by LT1SS
i have an 03 avalanche with a 5.3 in it. Im looking for a little bit more power.
i was thinking about puting a stock c5 cam in it. reason being is that i can do it for free. my friend and i did a h/c swap on his 99 vette, and he said i can use his stock stuff.

anyone think it would be worth it?
Here are some cam specs, I dont think the little difference in cams is going to net you any real seat of the pants performance.
broken out by vehicle
YEAR PN DUR LIFT LSA

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

LQ4
99-00 12560967 191/190 .457/.466 114
01-04 12561721 196/207 .467/.479 116
01-04 LQ4 cam is same as Camaro, Corvette LS1 and LQ9 cam

LQ9
02-03 12561721 196/207 .467/.470 116

GM Performance Parts
Hot 12480033 219/228 .525/.525 112
ASA 12480110 226/236 .525/.525 110
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Old Jul 31, 2011 | 06:38 PM
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For the amount of work there plus gaskets, ls2 chain, oil pump, I don't think
that cam has much if any more to offer than the truck cam. At least find a
good used ls-6 cam or perhaps a 210-216 comp cam w/springs & pushrods
either of these sticks would be worth about 25 more horse
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Old Jul 31, 2011 | 06:52 PM
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Originally Posted by A.R. Shale Targa
For the amount of work there plus gaskets, ls2 chain, oil pump, I don't think
that cam has much if any more to offer than the truck cam. At least find a
good used ls-6 cam or perhaps a 210-216 comp cam w/springs & pushrods
either of these sticks would be worth about 25 more horse
good point. i just figured since it was a free cam, it might be worth it but by the sound of it.... It would not be. i guess the power difference lies in the intake and exhaust.
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Old Jul 31, 2011 | 09:15 PM
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You need something with a much tighter LSA to get that truck moving. I like TR's old man truck cam, just ground on a tighter lsa like a 114 or 112 even.

I'd say something like a 212/218 114lsa or for something slightly bigger with more thump a 218/220 112lsa cam. Keep both in the .52x/.53x lift and you have a set-up that makes great under the curve power will pull to 5800-6000 rpm and not eat up springs.
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Old Aug 1, 2011 | 04:39 AM
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However, if you do decide to install it make sure to report results. I have the 5.3 in my Silverado and an 02 LS1 Vette cam in the basement.
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Old Aug 2, 2011 | 12:53 AM
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Originally Posted by Fbodyjunkie06
You need something with a much tighter LSA to get that truck moving. I like TR's old man truck cam, just ground on a tighter lsa like a 114 or 112 even.

I'd say something like a 212/218 114lsa or for something slightly bigger with more thump a 218/220 112lsa cam. Keep both in the .52x/.53x lift and you have a set-up that makes great under the curve power will pull to 5800-6000 rpm and not eat up springs.
what lift will the stock springs hold? ill report back if i do it. probably gonna be a winter project.
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Old Aug 2, 2011 | 01:32 AM
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To put a ls1 cam in no you dont have to change springs
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Old Aug 2, 2011 | 04:33 AM
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No You don't have to change springs but brand new LS6 yellows are only $59 at Fred Beans Parts .
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Old Aug 2, 2011 | 11:08 AM
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You should look into putting a 01 ls6 cam its direct bolt in... But you will have to change springs- yellow ls6's 57 bucks at scoggin-dickey
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Old Aug 2, 2011 | 02:05 PM
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I like the thunder racing old man cam or something from EPS.also look at comp cam 54-455-11.
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