5.3lCam swap
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Teching In
Joined: Mar 2014
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5.3lCam swap I have a 08 Silverado 5.3l i want to do a cam swap daily driver what are you guys using and how do you like it? Also thinking about doing a turbo over winter and don't want to swap cams twice.
Is the 5.3l vvt? Iirc all the 5.3s are afm but some are vvt and some are not vvt. For any cam youll need active fuel management at least. Normally we recommend vvt delete also. That way you are not restricted on cam design and using a cam phaser.
That being said the afm/vvt delete kit runs 630 and our cam kits start at 515 and go up. That includes every cover, gasket, bolt, and part youll need.
That being said the afm/vvt delete kit runs 630 and our cam kits start at 515 and go up. That includes every cover, gasket, bolt, and part youll need.
The 5.3 did not get VVT until late 2009 early 2010.
I use the BTR Truck Stage 2 212/218 .553/.553 113+2 and has great power and torque up to 6,000 RPM. This cam does outperform the Comp 212/218 low lift in case you are wondering.
This cam should make 50+ more whp in the 5.3. Texas Speed also has a low lift and high lift version of the 212/218 cam which I hear is great. If you want to use stock converter try to stay at or under a 212/218, it will perform better with a 2600-2800 stall. With a 212/218 you can run down to a 112 LSA and still pass emissions with ease.
Also check out what WS6Store has to offer. Very good people to work with.
I use the BTR Truck Stage 2 212/218 .553/.553 113+2 and has great power and torque up to 6,000 RPM. This cam does outperform the Comp 212/218 low lift in case you are wondering.
This cam should make 50+ more whp in the 5.3. Texas Speed also has a low lift and high lift version of the 212/218 cam which I hear is great. If you want to use stock converter try to stay at or under a 212/218, it will perform better with a 2600-2800 stall. With a 212/218 you can run down to a 112 LSA and still pass emissions with ease.
Also check out what WS6Store has to offer. Very good people to work with.
WS6Store, what is the max lift you recommend on a smaller cam such as the 212/218 or 216/220 with lobes that are not overly aggressive. While using PAC 1218 Beehives for a daily driver, Around .580"?
As much as you can get. .600 like the tsp cams is right on the money.
What the cam does at .100 and .200 is pretty important and often overlooked. even if it only goes to .600 lift you can build more duration in there with the right lobe and make better power. I prefer a little more adv duration vs most of th low lift lobes. helps out more as well.
What the cam does at .100 and .200 is pretty important and often overlooked. even if it only goes to .600 lift you can build more duration in there with the right lobe and make better power. I prefer a little more adv duration vs most of th low lift lobes. helps out more as well.
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Ok, say for the TSP 212/218 low lift vs high lift, does running .600 lift lower the longevity of the beehive valvespring? Lets say using a max RPM of 6,000.
Now I am running TSP-PRC Stage 1 243 heads which flow great at .600, intake of 313 cfm and exhaust of 220 cfm at .600.
Sorry to steal your thread LSTurboTruck. If I have any other questions, I will PM WS6Store.
Now I am running TSP-PRC Stage 1 243 heads which flow great at .600, intake of 313 cfm and exhaust of 220 cfm at .600.
Sorry to steal your thread LSTurboTruck. If I have any other questions, I will PM WS6Store.
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Verdad Gallardo It wont lower the longevity of the Pac1218 no. They are not aggressive lobes. Even at .600. Lobe lift is not a true measurement of how aggressive a cam is.
I like to use at least .600 if not more for nearly any combo. Normally it would sit with a dual spring, but the pac1219x works very well to .625 lift and can handle an aggressive lobe also and its $179.
I dont like using overly aggressive lobes, i like using the proper match for the combo.
If the peak lift of the cam is .600 youll never see that 313 cfm...of course you wont anyway with an intake on the heads, but that is not the point right? If you want the power that could come from there you will use more duration at .200 and have more than .600 lift so it at least stays there for at least a bit longer. Cutting down on the lsa helps to make the power happen sooner esp on the lower duration cams. Above a certain point the overlap becomes and issue and so does drivability. A truck cam on a 113 is about a good medium and you dont have to get overy aggressive on the icl either. It would make a smooth transition between shifts not come on like a light switch and need rpm to work.
Dont be afraid to experiment. I have one about to dyno tomorrow to show the diff between the old style hot cam and a new one designed by us. I am very excited to see the difference. Same @.050 dur and same lsa and almost same icl. Just a newer lobe and higher lift. Still using the pac1218.
https://ls1tech.com/forums/generation-iii-internal-engine/1868139-new-improved-prototype-hot-cam.html
Thats the thread.
I like to use at least .600 if not more for nearly any combo. Normally it would sit with a dual spring, but the pac1219x works very well to .625 lift and can handle an aggressive lobe also and its $179.
I dont like using overly aggressive lobes, i like using the proper match for the combo.
If the peak lift of the cam is .600 youll never see that 313 cfm...of course you wont anyway with an intake on the heads, but that is not the point right? If you want the power that could come from there you will use more duration at .200 and have more than .600 lift so it at least stays there for at least a bit longer. Cutting down on the lsa helps to make the power happen sooner esp on the lower duration cams. Above a certain point the overlap becomes and issue and so does drivability. A truck cam on a 113 is about a good medium and you dont have to get overy aggressive on the icl either. It would make a smooth transition between shifts not come on like a light switch and need rpm to work.
Dont be afraid to experiment. I have one about to dyno tomorrow to show the diff between the old style hot cam and a new one designed by us. I am very excited to see the difference. Same @.050 dur and same lsa and almost same icl. Just a newer lobe and higher lift. Still using the pac1218.
https://ls1tech.com/forums/generation-iii-internal-engine/1868139-new-improved-prototype-hot-cam.html
Thats the thread.
Last edited by tech@WS6store; May 24, 2017 at 02:57 AM.