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LS carb set up question

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Old 10-07-2023, 03:36 PM
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Default LS carb set up question
I'm trying to find a used msd 6ls or ls series box or an alternative. 5.3L gen III, 4.8L pistons, cam motion .639/.600 lift 112lsa, Eddy single plane, Holley 770cfm carb, built th350 with 9in Coan 4k stall.
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Old 10-07-2023, 11:45 PM
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Originally Posted by Kscrog80
I'm trying to find a used msd 6ls or ls series box or an alternative. 5.3L gen III, 4.8L pistons, cam motion .639/.600 lift 112lsa, Eddy single plane, Holley 770cfm carb, built th350 with 9in Coan 4k stall.
When mentioning a cam, duration is WAY more important than lift or LSA, especially when figuring piston to valve clearance.
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Old 10-08-2023, 12:42 PM
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Originally Posted by G Atsma
When mentioning a cam, duration is WAY more important than lift or LSA, especially when figuring piston to valve clearance.
I know all about PTV clearances and it wasn't relevant to the question I asked about looking for a used msd LS box. I've been building engines for a long time. I appreciate the input though.
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Old 10-08-2023, 01:30 PM
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Originally Posted by Kscrog80
I know all about PTV clearances and it wasn't relevant to the question I asked about looking for a used msd LS box. I've been building engines for a long time. I appreciate the input though.
I get and appreciate your point, it's just that cams are "known" more by duration than lift. "We out here" still have no idea which cam you are using.
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Old 10-08-2023, 01:53 PM
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Originally Posted by Kscrog80
I'm trying to find a used msd 6ls or ls series box or an alternative. 5.3L gen III, 4.8L pistons, cam motion .639/.600 lift 112lsa, Eddy single plane, Holley 770cfm carb, built th350 with 9in Coan 4k stall.
It's 248/370-258/360 duration
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Old 10-08-2023, 01:56 PM
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Originally Posted by G Atsma
I get and appreciate your point, it's just that cams are "known" more by duration than lift. "We out here" still have no idea which cam you are using.
[size=16px]It's 248/370-258/360 duration. A TON of duration lol, Brakes will be optional 🤣[/size]
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