When is a new flexplate needed?
Thread Starter
Supreme Member
Joined: Sep 1999
Posts: 1,054
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From: Ohio, USA
Car: 2015 Camaro Z/28 & 2013 Super Bee
Engine: LS7 and 392 HEMI
When is a new flexplate needed?
I have a newly built engine (in my sig), and a new Pro-Built Street/Strip tranny with a Vigilante going in soon. Is the stock flexplate going to be ok? When should it be replaced or does it need to be unless something catastrophic happens to it? If I need one, what brand and number of teeth, etc. should I get?
Supreme Member
Joined: Mar 2002
Posts: 1,654
Likes: 2
From: Lower Salford, PA
Car: 1987 Camaro Z-28
Engine: 6.3L Victor EFI
Transmission: Tremec TKO 600
Axle/Gears: Moser 9"/4.11 Trac-Lok
Is your old one showing cracks or have elongated bolt holes ? If not use it unless you need one with SFI certification. The # of teeth relates to how your starter mounts, if it's the original block, use the same amount of teeth as your original flex plate has & use the same style starter also.
Junior Member
Joined: Dec 2000
Posts: 36
Likes: 0
From: austin, TX. USA
Here is what happens if you dont inspect the flexplate
I let the noise go on for sometime before replacing,
it is fairly easy to inspect for cracks look from edge to
center of flexplate.
John 89GTA
it is fairly easy to inspect for cracks look from edge to
center of flexplate.
John 89GTA
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