Converter Flexplate Gap
#1
![Exclamation](https://ls1tech.com/forums/images/icons/icon4.gif)
I just installed my Yank SS3600 (stock flexplate) and the gap between the two is .234" (15/64). Do I need to add washers or is it safe to bolt up? Sorry, first converter install and there is some conflicting information about appropriate gap size.
#2
Moderator
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
The proper gap is between 1/16" and 3/16" (.188). A little past .250 the converter will not fully engage into the pump.
So yes, add washers to reduce the gap. Best are matching spacers for this purpose. Personally, I start with a bunch of grade 8 washers and use calipers to find three within .001 of each other.
So yes, add washers to reduce the gap. Best are matching spacers for this purpose. Personally, I start with a bunch of grade 8 washers and use calipers to find three within .001 of each other.
#3
TECH Senior Member
iTrader: (96)
Join Date: Aug 2007
Location: Turnin' Wrenches Infractions: 005
Posts: 24,241
Likes: 0
Received 81 Likes
on
72 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I've found that your average graded (meaning grade 8 or 10.9) washer from the auto parts store is about (.10) thick. So if you are at .23 now, one per bolt would reduce you down to .13 which would be perfect.
#4
FormerVendor
iTrader: (21)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
These guys are correct, also make sure to check bolt length. With a .100 shim you might want to upgrade to a longer bolt to make sure you get good thread engagement. I suggest a 10.9 grade for the best strength. Not to long though, you will bottom out before they tight up.
Chris
Chris
#5
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Thanks everyone for the advice! In regards to the bolts. I bought these ARP converter bolts but feel they are too short to use with shims. Would the stock ones be okay to use or should I get new bolts that are stock length plus the washer size?
Thanks again guys!
Thanks again guys!
![Cheers!!](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_cheers.gif)
#6
Moderator
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
The ARP 230-7304 are only .590 long.
It does seem a bit short; if the stock ones are longer, I would use those.
However, I hope that Chris (Circle-D) will give you a definitive answer.
It does seem a bit short; if the stock ones are longer, I would use those.
However, I hope that Chris (Circle-D) will give you a definitive answer.
Trending Topics
#8
TECH Senior Member
iTrader: (96)
Join Date: Aug 2007
Location: Turnin' Wrenches Infractions: 005
Posts: 24,241
Likes: 0
Received 81 Likes
on
72 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Get longer bolts, add in the threaded hole, washer and flexplate thickness, and cut to just a hair under your total measurement. They will be perfect that way.