Lt4 or lt5 cam in l83
Teching In
Joined: Jan 2020
Posts: 9
Likes: 0
Teching In
Joined: Feb 2020
Posts: 17
Likes: 6
I have an LT5 cam in an L83. Just got it started this week. It's a development motor though: LS7 intake and port injection. I think it would run better on a direct injection motor and with the LT4 cam phaser settings. I have it set to 0 right now but I hope to play around with tuning a couple other positions.
TECH Apprentice
Joined: Apr 2007
Posts: 311
Likes: 36
From: South Carolina
From my understanding when you delete the GEN5's AFM you should do a cam swap as well because the cam lobes are different between the AFM cylinders and non-AFM cylinders.
I agree with ohioborn80. If you're going to invest the cost and effort to swap to a non-AFM setup (which I think is a good ideal) then why not use a better cam than a OEM offering? When you add up all the costs to do a cam swap and AFM delete in a GEN5 LT, trying to save a few $ on the piece that gives you the biggest reward for your investment seems pointless when there are some very good aftermarket cams out there. (Both VVT and non-VVT cams)
I agree with ohioborn80. If you're going to invest the cost and effort to swap to a non-AFM setup (which I think is a good ideal) then why not use a better cam than a OEM offering? When you add up all the costs to do a cam swap and AFM delete in a GEN5 LT, trying to save a few $ on the piece that gives you the biggest reward for your investment seems pointless when there are some very good aftermarket cams out there. (Both VVT and non-VVT cams)
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From my understanding when you delete the GEN5's AFM you should do a cam swap as well because the cam lobes are different between the AFM cylinders and non-AFM cylinders.
I agree with ohioborn80. If you're going to invest the cost and effort to swap to a non-AFM setup (which I think is a good ideal) then why not use a better cam than a OEM offering? When you add up all the costs to do a cam swap and AFM delete in a GEN5 LT, trying to save a few $ on the piece that gives you the biggest reward for your investment seems pointless when there are some very good aftermarket cams out there. (Both VVT and non-VVT cams)
I agree with ohioborn80. If you're going to invest the cost and effort to swap to a non-AFM setup (which I think is a good ideal) then why not use a better cam than a OEM offering? When you add up all the costs to do a cam swap and AFM delete in a GEN5 LT, trying to save a few $ on the piece that gives you the biggest reward for your investment seems pointless when there are some very good aftermarket cams out there. (Both VVT and non-VVT cams)
The LT5 cam is basically the same specs as LT1 cam minus the AFM lobes...it also has a different fuel lobe. My guess is those with 5.3's are looking for a cheap replacement when performing a AFM delete being you can get the LT5 cam for 189.00 from Scoggin Dickey the last time I checked.
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