want input for best cam 2003 4.8 silverado
10-14-2010, 04:52 AM
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-ANY of the three in the first link , You could probably get away with no tuning on the first one...ALL mild cams with a **** ton of low end/off idle
-Second link is the 212/218 low lift LOTS of torque with improved top end/easy on valvetrain
-You really should consider a custom tune to optimize your setup, You will also need yellow ls6 springs with any cam above... and 7.4 hardened push rods recomended
http://speed-eng.com/store/comp-cams...l?osCsid=46fbc
-Second link is the 212/218 low lift LOTS of torque with improved top end/easy on valvetrain
-You really should consider a custom tune to optimize your setup, You will also need yellow ls6 springs with any cam above... and 7.4 hardened push rods recomended
http://speed-eng.com/store/comp-cams...l?osCsid=46fbc
IMO go with the 206/212 and LS6 springs. The 212/218 lowlift in my 4.8 is getting close to the far side of DD cams. The 212/218 low is kind of a dog until 2500, but screams from there on out! I have the fix for the cam lag waiting to be installed...a Trailblazer I-6 Stall converter.
A custom tune from one of the sponsors such as Wheatley,BlackBear or Nelson is a must for any mod to the truck. Well worth the money. Like mentioned before, handhelds are generic just like the stock tune. A custom tune dials in your computer to your specific engine mods and makes it come alive.
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