If you are in the middle of the parts gathering for your supercharger install and need bolts there is a place to go to. Its called BoltDepot.com they have just about every kind of bolt you will need.
I even found the hard to get shoulder bolts for the intake manifold. 8mm shoulder with a 6mm thread. They are a class 12.9 hardness

 

Good find !

 

Have you tested them yet?
Looks to me like there may not be enough thread on there to get them all the way in. Is it a removable sheath you can cut to length or solid?
if so i may pick some up, I'm just using 6mm with washers.

 

Picture is a little off. The threads are about 1 inch long. The Shoulder is solid, the bolt is one piece and they are hard. These are 3/8 of an inch longer than normal for the phenolic spacer I'm installing between the head and intake.

 

You have an automatic? Not sure I'd want an extra 3/8 on the front.

 

Yes it's a auto. While it was in the shop getting fixed from the 1 ton episode. The whole radiator support has been moved with the bulkheads 1/2 forward to clear the supercharger pulley and give more wiggle room up front.

 

Good idea, thanks for the info.

 

I really want to zzp supercharge my hhr but i'm not 100% sure i have the motor i think i do my Vin is 3gnda13dx7s505752 (its an 07) Can any of you inbox me and let me know what motor i have im thinking 2.2l but it could be any, help please?

 

Eighth digit in vin is the engine, D is 2.2, P would be 2.4