Julex

Hi, I have a flywheel that someone stripped one of the bolt holes and I need to put a helicoil, problem is stock bolts are in car right now, and I want to get the holes drilled and retapped asap before I take apart car. I need to know the bolt size for the hole. Basically Threads per inch. If anyone can do this for me it would be greatly appreciated. Thanks

2K5SS/SC?

Take the flywheel to the hardware store and thread a bolt in. One helicoil installed on the flywheel could throw off its balance and cause problems down the road. Be careful.

jeremie

i would get a new flywheel, since its balanced. the slighest imbalance will multiply as rpms build.

CobaltPerformanceParts

I would also recommend just getting a new flywheel.

Julex

I'm doing 4, and I know everything about unbalanced. I talked to Fidanza personally and he said is when they repair one they throw on in the other side, but I'm one upping and doing 4. I do drill and taps as a job as a tech on much worse then a piece of aluminum, like 6000# 1000* steam, while it's leaking, so I'm not worried about any of this. He also said that their high performance custom ones all have helicoils in them for strength.

I just need the thread count. Unfortunately finding a bolt like that at a store can cause a problem if by chance I try a metric in a standard hole, it could potentially strip a thread off, even though worse case is I may end up doing it anyway. But, I'm just wondering if any techs out there would know. Thank you.