5.3 L33 cam specs...marine use????
09-28-2009, 01:21 PM
#4
Inboard boat motors run a wet exhaust. Water is mixed with the exhaust just past the manifold to cool the pipes and muffle the noise.
Cams with a lot of overlap tend to pull water back into the cylinders (reversion).
You can run dry pipes (water jacketed exhaust manifold and pipe), but the tend to be VERY LOUD.
Cams with a lot of overlap tend to pull water back into the cylinders (reversion).
You can run dry pipes (water jacketed exhaust manifold and pipe), but the tend to be VERY LOUD.
09-28-2009, 01:28 PM
#5
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I would imagine its 114' or larger considering its designed for smooth idle and emissions
here are other thoughts
https://ls1tech.com/forums/generatio...cam-specs.html
here are other thoughts
https://ls1tech.com/forums/generatio...cam-specs.html
09-28-2009, 01:57 PM
#6
Yeah, I found the specs on the LQ motors (below), but not on the L33, I'm betting it's about the same as the LQ4. Most marine cams are in the 114-116 LSA range with about 200 duration, so it should work fine.
I was just worried that the L33 with the LS6 heads might have a hotter cam.
'99-'00 LQ4, Int. 191 0.457 114
PN 12560967, Exh. 190 0.466
'01-'06 LQ4, Int. 196 0.467 116
PN 12561721, Exh. 207 0.479
I was just worried that the L33 with the LS6 heads might have a hotter cam.
'99-'00 LQ4, Int. 191 0.457 114
PN 12560967, Exh. 190 0.466
'01-'06 LQ4, Int. 196 0.467 116
PN 12561721, Exh. 207 0.479
I would imagine its 114' or larger considering its designed for smooth idle and emissions
here are other thoughts
https://ls1tech.com/forums/generatio...cam-specs.html
here are other thoughts
https://ls1tech.com/forums/generatio...cam-specs.html
09-28-2009, 02:18 PM
#7
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Yeah, I found the specs on the LQ motors (below), but not on the L33, I'm betting it's about the same as the LQ4. Most marine cams are in the 114-116 LSA range with about 200 duration, so it should work fine.
I was just worried that the L33 with the LS6 heads might have a hotter cam.
'99-'00 LQ4, Int. 191 0.457 114
PN 12560967, Exh. 190 0.466
'01-'06 LQ4, Int. 196 0.467 116
PN 12561721, Exh. 207 0.479
I was just worried that the L33 with the LS6 heads might have a hotter cam.
'99-'00 LQ4, Int. 191 0.457 114
PN 12560967, Exh. 190 0.466
'01-'06 LQ4, Int. 196 0.467 116
PN 12561721, Exh. 207 0.479
