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Generation III Internal Engine 1997-2006 LS1 | LS6
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LQ4 243 swap no cam upgrade

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Old 02-26-2019, 11:43 AM
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Originally Posted by clegg
Did you use a low lift cam?
I used the summit 8718 truck cam. .500 .500 lift I believe. I thought about going bigger but tried to maintain some fuel efficiency
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Old 02-26-2019, 12:43 PM
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The higher lift cam would not have lost any fuel efficiency. In fact sometimes efficiency is gained due to more efficient breathing. The main reason the .500 lift cam is made is to be able to use existing valve springs.
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Old 02-26-2019, 12:56 PM
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Originally Posted by G Atsma
The higher lift cam would not have lost any fuel efficiency. In fact sometimes efficiency is gained due to more efficient breathing. The main reason the .500 lift cam is made is to be able to use existing valve springs.
ah I see. I used ls6 springs so I could go bigger in the future if I get bored with this setup.
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Old 02-26-2019, 02:53 PM
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Originally Posted by Crysis
You should install a cam while your at it and use the 706/862 heads they are proven to make more tq and hp
Oh no you didn't just say that ,, here we go again
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