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FLT Level 5 handle a 427ci LS3?

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Old 05-27-2008, 07:43 PM
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Default FLT Level 5 handle a 427ci LS3?

Im getting my new motor in a few months and was wondering if any of you guys with bigger cubes could let me know how well your trannys are holding up.Mine has worked flawlessly since its been in with my power level,but i wonder how it will hold with the 427...Any help is appreciated
Old 05-28-2008, 08:01 PM
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I run a FLT Level IV that was freshened up and upgraded with the Sonnax Servo before I installed my 402 two years ago. So far it's been flawless with about 6,000 miles but only about 12 track runs. I'm sure yours will be fine but depending on the miles, you may want to send it back for a quick inspection and freshen up by FLT.
Old 05-29-2008, 05:29 PM
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Default FLT Level 5 handle a 427ci LS3?

I have a N/A 427 and have never had ANY problem with this transmission. Don't even worry about it.
Old 05-30-2008, 02:07 AM
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The FLT level 5 can handle the setup in my sig
Old 05-30-2008, 04:33 PM
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Thanks for the help guys,i knew i shouldnt have doubted the level 5,ive just heard alot of horror storys here locally......

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Old 05-30-2008, 06:22 PM
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A level 5 is the top of the line so im guessing it should be fine at anything under 800rwhp




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