Cam swap

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Dec 7, 2015 | 10:33 PM

moore_51

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From: Fort Worth

Cam swap

I'm looking to do a cam swap in my 03 5.3. I'm told it's a single bolt cam, and not completely sure of what all it entails to do a 3 bolt conversion. I know the gear needs to be changed of course. But unsure of the rest if any. Do I need to do something different with the cam sensor? Or anything else? Any info is appreciated.

Dec 7, 2015 | 11:11 PM

alowerlevel

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From: South Jersey

If its an 03 engine it should be a 3 bolt cam

Dec 7, 2015 | 11:33 PM

moore_51

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From: Fort Worth

Is there a for sure line where they were single or 3 bolt? Or does it vary between models?

Dec 8, 2015 | 05:41 AM

gagliano7

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From: Monroe,NY

I am pretty sure the single bolt cam didn't start until the gen IV motors came out.

Dec 8, 2015 | 09:45 AM

alowerlevel

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Quote:

Originally Posted by gagliano7

I am pretty sure the single bolt cam didn't start until the gen IV motors came out.

x2, like I said, '03 (which is genIII) is a 3 bolt, If your not sure or dont believe us its easy to figure out when you pull the timing cover.
I know my '04 and '05 5.3s are 3 bolt, and so is the '06 (L33) my brother has

Dec 8, 2015 | 10:29 AM

thompson

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If the engine you have is in fact a 2003 model. It should be a 3-bolt configuration.

Aaron @ Thompson Motorsports

Dec 8, 2015 | 02:25 PM

moore_51

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No I believe what y'all are saying. I was under the impression that the single bolt was on the gen III's. But I did some digging around while I was waiting for a reply and that the conclusion i came up with. I got it for sure on btr's website and it was saying single bolt for ls3 cams. But i appreciate everyones input. It does help. Thank you