I paid $60. for the set. Expensive you say? Maybe...but they're worth every penny to me! They're really too nice looking to put in a place where you can't see them.

 

I believe the part #s for the .75 SBC are ARP 400-1201 for the 12 pt and ARP-400-1101 for the Hex.

I could swear that I wanted 1" so I got the Universal ARP SS 12 pts 400-1210. I believe the hex 1" is the ARP 400-1110.

I might be able to find my order form to confirm those numbers, but Summit may advise you better.

The flanges on my SLPs are pretty thick and the 1" seems to work best. JMHO.

Let us know how you go.

 

Bolts are bolts are bolts. I was ARP in my hookers but one did find enough play after a while to work itself out. I got a free set of stage 8's but I've had one of those work out as well, without the lock washers on becuase it's doesn't fit the primaries.

I think header bolts are just a part of maintance and you should tighten them up (or check them) every time you change your oil and have a couple of spares on hand just in case.

I'd get ARP just because of price. Stage 8's need to be modded to fit the locks on anyway with 1.75"+ primaries, just not worth the cash.