what bolts for cat racing sfi flexplate
05-30-2013, 07:45 AM
#2
Moderator
Most SFI flexplates are thicker and you need longer bolts.
IIRC the stock bolts are only 12mm and you probably need 18mm.
CircleD sells a wide variety of converter bolts including ones from ARP.
I just use hardware-store 1cm (25mm) long fine-thread bolts with a 9.8 or 10.8 hardness. I add a very thick hardened washer (about 3mm) under the head. If doing this, first make measurements to ensure the bolt doesn't bottom out in the converter before it reaches full torque; allow about 1 fine thread for stretch.
Update - This is for flexplate to converter. Not what you wanted.
IIRC the stock bolts are only 12mm and you probably need 18mm.
CircleD sells a wide variety of converter bolts including ones from ARP.
I just use hardware-store 1cm (25mm) long fine-thread bolts with a 9.8 or 10.8 hardness. I add a very thick hardened washer (about 3mm) under the head. If doing this, first make measurements to ensure the bolt doesn't bottom out in the converter before it reaches full torque; allow about 1 fine thread for stretch.
Update - This is for flexplate to converter. Not what you wanted.
Last edited by mrvedit; 05-30-2013 at 10:01 AM.
