Cam for 5400lb truck
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TECH Fanatic
Joined: Jan 2017
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Cam for 5400lb truck Looking to tear into a 5.3 in a truck that weights more than a couple tons. Just looking to add some character to it, wake it up. While retaining the ability to haul around our real muscle cars. It will be accompanied by stock 799s heads, longtubes and full exhaust with a stall converter. The usual basics. Any recommendations on a cam? I need as much torque as possible from around idle on up. Dont care what it revs too. Dont care how it sounds.
Check out the drop in truck cams. They are built for what you're looking for and retain stock pushrods and valve springs.
If you're handy pull the heads (unless you mean they'll already be off) and mill them a little too for a little more low end, efficiency, torque, power etc and to get back some of the dynamic compression you'll lose with the cam.
If you're handy pull the heads (unless you mean they'll already be off) and mill them a little too for a little more low end, efficiency, torque, power etc and to get back some of the dynamic compression you'll lose with the cam.
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Joined: Apr 2014
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http://sdparts.com/i-22100614-sdpc-s...0-525-115.html
don't know if scoggin and dickey are vendors or not. if not google sd0053
don't know if scoggin and dickey are vendors or not. if not google sd0053
http://sdparts.com/i-22100614-sdpc-s...0-525-115.html
don't know if scoggin and dickey are vendors or not. if not google sd0053
don't know if scoggin and dickey are vendors or not. if not google sd0053
http://sdparts.com/i-22100614-sdpc-s...0-525-115.html
don't know if scoggin and dickey are vendors or not. if not google sd0053
don't know if scoggin and dickey are vendors or not. if not google sd0053
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Verdad Gallardo Dual springs/high pressure springs is just more parasitic drain and more wear and tear if they aren't necessary. That's not really an area where overkill is better.
The LS6 cam itself is 0.551" / 0.547" int/exh lift. There is some headroom there, but as it is .55X" of lift is plenty given proper duration. The reported cases I've seen were all for lift above .6XX". For the intended purpose of this truck cam, there is no need for lift above .6XX".
Looking to tear into a 5.3 in a truck that weights more than a couple tons. Just looking to add some character to it, wake it up. While retaining the ability to haul around our real muscle cars. It will be accompanied by stock 799s heads, longtubes and full exhaust with a stall converter. The usual basics. Any recommendations on a cam? I need as much torque as possible from around idle on up. Dont care what it revs too. Dont care how it sounds.
The LS6 cam itself is 0.551" / 0.547" int/exh lift. There is some headroom there, but as it is .55X" of lift is plenty given proper duration. The reported cases I've seen were all for lift above .6XX". For the intended purpose of this truck cam, there is no need for lift above .6XX".
I never considered rockers only, have you seen any literature with results from rockers only I could read on? Or know someone that's tried it? Curious how they liked it, especially if they did it on a truck.
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Joined: Jun 2016
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From: Central Cal.
One other thing I forgot to mention was that LS6 springs were a bit "soft" for the application, with the result that some knowledgeable people don't even like them much in their intended application. BUT this might just be "internet rhetoric"....
Most of the rockers only stuff I've seen was all tq gains. Like 8/18 hp/tq. Trucks like high idle vacuum for good off idle torque. A simple rocker upgrade won't affect that. Might even improve it
If you spend a lot of time above 5k rpm, then that's fair to say. Most street cars don't see this kind of use, especially trucks. The LS6 valvetrain was designed for spirited street use with track capabilities. There is some trade-off to be said about springs that are too snappy on an already noisy LS valvetrain, including extra stress on lifters. The latest LS6 springs, IMO, provide a happy medium of driveability and performance with little compromise. For racing applications, a custom valvetrain is prescribed.