03sierraslt

iTrader: (19)

Who all is using them? I am trying to decide whether to use them or just run APR2000's. Setup is a forged 370 with TFS225's and will see 17-18psi now and 20-23 later down the road. I know plenty are running the 2000's above that, but what's the consensus? I can get the 625's for $660 and the 2000's for $350

A.R. Shale Targa

iTrader: (2)

Cant say as I've tried them; however the 2000 series fasteners are some pretty darn good fasteners. I'm just not certain it would be money well spent in your case

That_One_Person

iTrader: (4)

With your aftermarket, thicker heads i'd imagine you'd push the limits of the 4 bolt setup before it's the studs that cause problems.

Edit: I have no personal experience with FI I am merely talking out of my ***.

03sierraslt

iTrader: (19)

Ive been kinda thinking the same thing. I feel like the 2000's would be good but IDK. Gen 4 4bolt block and LS9 Gaskets.

JoeNova

I doubt you'll need the custom aged stuff.

pantera_efi

iTrader: (1)

My METHOD : FORTY YEARS AGO, I asked "me" friend, in England, Mike Costin, WHY the HEAD BOLTS he provided with HIS BDA conversion kit WHERE "undercut" ?

HIS ANSWER : "The bolts/studs "need" to GROW equal to the AL expansion rate of the Al head".

This made sense to ME !

That "under cut" allowed FOR bolt stretch.

TODAY I use studs that allow for that, NO-ONE here speaks the "ART"

Would you like me to provide a stud kit that will work fine for under $100.00 ?

Lance