Need help selecting header stud size
 

I’ve got an L94 in my 68 with speed engineering shorty headers. I’m wanting to get a header stud kit. Looks like there are four options from ARP:
1/4” wide flange 0.984” UHL, hex head
1/4” wide flange 0.984” UHL, 12 point head
Or
3/8” wide flange, 1.181” UHL, hex
3/8” wide flange, 1.181” UHL, 12 point

How do I know which I need?

Re: Need help selecting header stud size
 

Its as simple as reading the product description.. probably 3/8 thick as its most common.. 1/4 flange would be a joke. Quality turbo manifols probably 1/2" thick

Hex... elementary 6 pointed

12 points.. looks fancy bout it

What ever you prefer...

Re: Need help selecting header stud size
 

what you have listed is bolts....not studs...