Intake Bolt Length

Reply Subscribe

Thread Tools

Search this Thread

Mar 5, 2007 | 07:30 PM

vettenuts

Thread Starter

Team Owner

Joined: Mar 1999

Posts: 22,025

Likes: 192

From: At the beach in little Rhody

Intake Bolt Length

Does anyone have an intake bolt handy? Looking for the length from under the head to the tip of the thread (standard bolt length measurement).

Mar 5, 2007 | 07:43 PM

Jeffs FRC

Burning Brakes

Joined: Nov 2004

Posts: 1,226

Likes: 3

From: Lakemoor IL

I would just head out to the garage and pull one out. Will take less than a minute. I believe they are 8mm.

Mar 6, 2007 | 08:26 AM

CorvetteMick

Pro

Joined: Jul 2004

Posts: 506

Likes: 1

From: Houston TX

Go to the Weiand LSx intake site in the installation instructions they list the size and lenght. I don't remember off the top of my head, but I thought they were 90 or 95 mm.

Mick

Mar 6, 2007 | 12:20 PM

vettenuts

Thread Starter

Team Owner

Joined: Mar 1999

Posts: 22,025

Likes: 192

From: At the beach in little Rhody

Thanks. Reason I am asking is I just bought a FAST and they are 110mm long, but are plain carbon steel. ARP makes a nice set, but I was afraid they may be too short for the FAST.

Mar 6, 2007 | 07:50 PM

Jeffs FRC

Burning Brakes

Joined: Nov 2004

Posts: 1,226

Likes: 3

From: Lakemoor IL

I used the stock bolts with no problems. They are plenty long.

Mar 7, 2007 | 05:35 AM

see5

Safety Car

Joined: Jan 2001

Posts: 3,879

Likes: 3

From: Hobart, WI

Stock long bolts are fine, use of the button heads on the valley is critical.
The torque is relatively light for the bolts with the FAST. As you know by now many FAST problems relate to over torquing.

Mar 7, 2007 | 05:54 AM

vettenuts

Thread Starter

Team Owner

Joined: Mar 1999

Posts: 22,025

Likes: 192

From: At the beach in little Rhody

I don't remember and car is in storage, don't the stock bolts bear up against the plastic directly? I know the FAST bolts use a DIN 7349 heavy washer under the bolt head to distribute the load to the upper shell.