Cam swap
01-23-2010, 08:44 PM
#22
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I read the specs on the 5.3 HO crate and they did a cam and piston change and hit 330.The cam gm uses for this engine is the LQ9 cam from late model 02-up. I am not going to do piston change but was thinking maybe a head change like LS7 heads. Like I said maybe i am wrong but I do have another ? I can't have LT headers due to emissions but r shorty's worth it I have heard mixed results. Thanks
01-24-2010, 04:17 AM
#24
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Try at least reading the stickies in the GM Performance section if your not going to search... https://www.performancetrucks.net/fo...d.php?t=414374 That link could give you all the info you would need to meet your goals. People on this site have spent lots of time putting threads together to make information easily accessible for specific questions like yours. Use it to your advantage.
01-24-2010, 11:22 AM
#25
wwardd, somebody has been telling you stories buddy....
Do yourself a favor and just read, read, read, and read. And then read some more, because you have A LOT to learn. I would suggest not buying any parts or taking any steps in modding your truck yet until you have a very good understanding of what these parts do and how they effect your engine and performance. Make sure you also understand the supporting modifications that must be done before and after changing cams, etc.
So to sum it up
DO NOT BUY ANY PARTS OR MAKE ANY DECISIONS UNTIL YOU READ THREADS ON THIS FORUM FOR AT LEAST A MONTH. There is a lot of knowledge and experience around here, and you will learn very valuable information, and very useful steps to follow. We will save you money on mods that are proven not to work or be worth the money, but don't expect to spend less than $5-6K if you're looking for 350-400 horsepower.
Do yourself a favor and just read, read, read, and read. And then read some more, because you have A LOT to learn. I would suggest not buying any parts or taking any steps in modding your truck yet until you have a very good understanding of what these parts do and how they effect your engine and performance. Make sure you also understand the supporting modifications that must be done before and after changing cams, etc.
So to sum it up
DO NOT BUY ANY PARTS OR MAKE ANY DECISIONS UNTIL YOU READ THREADS ON THIS FORUM FOR AT LEAST A MONTH. There is a lot of knowledge and experience around here, and you will learn very valuable information, and very useful steps to follow. We will save you money on mods that are proven not to work or be worth the money, but don't expect to spend less than $5-6K if you're looking for 350-400 horsepower.
Oh, there you are, whew! Glad to see you're okay
OP, READ READ READ. When you are done reading, find another thread and read some more. You may not understand all of what you are reading, but you will have some fairly specific questions which everyone hear is more than happy to answer, as opposed to the "how do I make 400 rwhp with a 5.3L and $275 to spend?" question that has been asked over and over.
As for your goal, is it possible...absolutely, is it easy...no, cheap...HELL NO. But when its all done (its never done), when you wax your first mustang, and you see that look on the drivers face like you just kicked his mother in the teeth, it makes it all worth it.
03-11-2010, 02:31 PM
#28
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hi i have a 03 silverado 5.3 lm7 or? not sure how to tell?
so far i have put a cold air induction in, high performance plugs and wires, flowmaster 40 series exhaust, 373 gears and 3way high performance chip..havent had it dynoed yet..Just curious how much hoarse power do you think i have increased so far?
so far i have put a cold air induction in, high performance plugs and wires, flowmaster 40 series exhaust, 373 gears and 3way high performance chip..havent had it dynoed yet..Just curious how much hoarse power do you think i have increased so far?
