2005 5.3 cam swap question
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Staging Lane
Joined: Aug 2013
Posts: 98
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2005 5.3 cam swap question I just got a 2005 5.3 engine with 706 heads and 97K miles to put into my 72 Chevelle. Since it is sitting on a stand I thought about swapping the cam before I put it in the car. I found a good deal on a Lunati cam with the following specs:
Duration 214/218
Valve lift .555/.551
LSA 117.5
Unfortunately no part number on it. I want to keep my mpg's but get a little HP boost since it will be a daily driver. Anyway, would that be a viable cam or would i need to do heads or at least valve springs to do the swap?
Just want some feedback.
Duration 214/218
Valve lift .555/.551
LSA 117.5
Unfortunately no part number on it. I want to keep my mpg's but get a little HP boost since it will be a daily driver. Anyway, would that be a viable cam or would i need to do heads or at least valve springs to do the swap?
Just want some feedback.
you will need new valve springs at minimum for any cam swap, but with 100k miles on stock springs that's not a bad thing
on a cam like that you can probably use the ls6/ls2/ls3 springs which are ~$60 new
you should also highly consider hardened pushrods, stock ones are junk and prone to bending
on a cam like that you can probably use the ls6/ls2/ls3 springs which are ~$60 new
you should also highly consider hardened pushrods, stock ones are junk and prone to bending
I would be careful about even suggesting ls6/ls2/ls3 springs, since the ramp rates of the cam lobes are unknown at the time, an we all know that the lobe lift doesn't tell you how aggressive, or mild the lobes are. Imo if that cam happens to have the more aggressive VooDoo lobes, then you'll definitely want valve springs with higher seat, and open lbs pressure, like the PAC 1219X and 1211X, if you plan on running beehive springs or BTR or PAC duals. If your unable to verify the lobes used on the Lunati cam then I'd highly suggest erring on the safe side.
Last edited by 99Bluz28; Dec 16, 2014 at 08:44 PM. Reason: wording was a little rough !
