ls1 and lq4 flex plate...is mine correct?

[ldyzluvdis06]

really? i wasnt really expecting that much of a difference on my butt dyno...it's only 18 more cubes...???

 

[Pewter-Camaro]

I've seen guys bore cylinders right up to the limits just to get 5 cubes. 18 cubes should be an animal.

.... the guys at YANK and TSP said i should be okay though, that they have never heard of, or seen a 98 flexplate break, it's always been the later years.

This is true.. the later 4th gen LS flexplates that have 3 Peanut shell shaped cutouts are known to crack. Mine cracked years ago and started to make a clank sound. Been Running an SFI approved one since.

Link to a pic of one that cracked that I've had saved for some time just for reference... http://i242.photobucket.com/albums/ff202/blehmk/229.jpg

 

[Smokinhot]

really? i wasnt really expecting that much of a difference on my butt dyno...it's only 18 more cubes...???

Your butt dyno will feel a difference!

 

[Smokinhot]

So, how is she doin?

 

[Smokinhot]

Also, what heads are you running?