5.0stang

iTrader: (1)

Just like the title says

I have looked everywhere...

Old SStroker

Perhaps not everywhere.

Do you want specs @
1) 0 LIFT (SEAT DURATION SPECS)?
2) .006 LIFT?
3) .020 LIFT?
4) .050 LIFT?

Why do you need them?

BTW, which LS6 cam?

Gary Z

Stock LS6 cam is the first row of the attached spreadsheet.

Gary Z

In case you don’t have Excel, here are the LS6 valve events:

LS6 204/218, 0.551/0.547, LSA=117, ICL=117, IO=15ATDC, IC=39ABDC, EC=8BTDC, EO=46BBDC, Overlap = -23

5.0stang

iTrader: (1)

OldSStroker -

I was just curious to have the specs, I love comparisons.

Gary Z - I assume those are at .050"...?

When did the ls6 cams change?

Thanks guys, great start!

Gary Z

Yes.

02-04 LS6 cam differs from the 01 cam.

I created my cam comparison spreadsheet to help select my next cam. I specifically wanted to know how valve events of candidate cams compared to Thunder racing’s T-Rex.

-Gary

Old SStroker

How do you choose the valve events that your engine wants using your spreadsheet??

Gary Z

My very simple spreadsheet contains no engine model or parameters and therefore tells nothing about performance, much less optimal performance. Because I want to use unmilled heads and stock pistons without valve reliefs, I wanted to be certain that I stayed within limits set by the T-Rex, considered by many to be the largest practical cam given those constraints. The critical determinants of P to V clearance are the intake-valve-closing, and exhaust-valve-opening points. I couldn’t find IVC or EVO specifications for the T-Rex so I decided to calculate them – hence the spreadsheet.

Old SStroker

Do you have any engine performance goals for a cam swap? If increased performance is on the list, you might consider contacting folks who specialize in selecting/selling cams and valvetrains for specific engine/vehicle combinations like yours. Many of them have BTDT...some successfully.

Don't lose sight of the forest...

1 FMF

iTrader: (1)

is it possible to make a spreadsheet like above for OEM camshafts of all applications from 1998 starting with the LS1, to LS6, LS2, 7, 3, and however they progressed to present?

It would be cool to see all the specs per application and see how things are trending.
Not just cam specs for durations, centerlines, lifts and LSA's but also valve diameters, rocker ratio's, valve angles, and Cylinder head specs if possible.

Gary Z

My spreadsheet above can easily be modified to display valve events for other cams. The values displayed in blue (Intake Open, Exhaust Close…) are derived from the values displayed in red (Duration, LCA…). You can edit one of the existing rows or add a new row.

troy10

I Would Like To Know What Cam Is Good For Stock Heads And 100 Shot Nitrous Hit Also 3200 Converter..any Ideas Anyone Pls