Broke both bolts connecting the throttle cable bracket to the upper intake and don't want to buy a whole new intake bolt set. Was wondering what the exact length and thread size is so I can just buy two bolts up at the hardware store.

I don't remember the exact thread size. I know they're 8mm diameter, but don't remember the thread pitch. But it's the same as the long intake bolts. So you can bring one of the long bolts to the store, and match it up. The short bolts are only about 3/4" (20mm?) long.

The long bolts are M8x1.25 55mm long. You can use longer bolts because they screw into through holes. Unbelievably McMaster Carr doesn't have these bolts (I wasn't expecting chrome form them), but they do have them up to 30mm. Click here to see them. They have the correct size bolts in a standard hex head though. Click here to see them. These might be tough to find at a hardware store. I'm lucky to have a warehouse nearby, otherwise MC is mail order only.

------------------
Stanton
'88 Formula, red on gray

[This message has been edited by oneinch (edited 02-04-2021).]

quote Originally posted by Blacktree: I know they're 8mm diameter, but don't remember the thread pitch.

The vast majority of Fiero bolts are metric coarse thread.

Here are some suitable ARP bolts on Summit Racing.

Cut and paste the link below into your browser:

www.summitracing.com/
search/brand/arp/department/
fasteners-hardware/section/bolts?N=department%3Afasteners-hardware%2Bsection%3Abolts%2B
part-type%3Abolts-and-screws%2Bfastener-size%3A8mm-x-1-25-rh%2Bfastener-finish%3Apolished%2B
fastener-head-style%3Aflanged-12-point&SortBy=Default&SortOrder=Ascending&keyword=arp&kr=arp

I don't know what lengths are required, but ARP has a broad selection of lengths.

PM sent

Nelson