99blancoSS

iTrader: (115)

Need to R+R the right header and those stage 8's are a pia with the c ring setup. The Breslins are spendy but look to be nicer to work with. Anyone?

NVME

iTrader: (1)

Regular hardened bolts with heat treated lock washers have never failed me. Screw all that fancy ****.

NWDragRacer

I use hardened allen bolts without washers. They work great in tight places.

TwoFast4Lv

iTrader: (8)

Been using Stainless ARPs for 12 years

My fear with the ones you are talking about is the center will get stuck and never come out

WAHUSKER

iTrader: (4)

From my experience with LS motors, you don't "need" locking header bolts. They don't seem to come loose like on your old-school SBC motors. Not sure why, but I've never had to snug mine up, and all I have is the regular hard bolts with lock washers....