I did some searching and found a couple guys saying heads for 250 shot.
I have an HKE built 347, with rings gapped for 150 shot. I'm using AFR's again with a stock thickness Cometic gaskets.
From my last setup, I have ARP head bolts.
My question is, will the ARP head bolts be enough to hold down a 150 shot? The last thing I want to do is push water so if you think head studs are the way to go, let me know.
Thanks
__________________ 2000 Formula WS6 A4
AFR 205 milled 59cc, G5X3 234/242 112, Performabuilt Stage 2 4L60E FMVB w/ 3500 stall + BOLT ON's
433 rwhp/ 410 rwtq Tuned by Nick at Newtech EXPLODED
I went with bolts just to keep things simple, I'd imagine the studs are better, but are they really necessary? I head of people spraying 200 shots on stock head bolts. So I'd think the arp's would hold on anything not much bigger. The bolts are reusable too, I think the studs would be needed for a much bigger horsepower car with forced induction. But bolts would be fine for a not so extreme build.
the bolts are fine ive seen guys on here do 250 on stock gaskets and tty bolts...i used arp bolts and cometics on my new engine..i plan on a 250 shot...
I went with bolts just to keep things simple, I'd imagine the studs are better, but are they really necessary? I head of people spraying 200 shots on stock head bolts. So I'd think the arp's would hold on anything not much bigger. The bolts are reusable too, I think the studs would be needed for a much bigger horsepower car with forced induction. But bolts would be fine for a not so extreme build.
Yes they are neccessary....why spend all that money on building an engine then cheap out at the end? Of course people have ran bolts and been okay..but is it really worth saving 100$ now and risking your engine down the road? I went with them now and I dont even need them..its just an extra piece of mind..and its worth the extra 100$
__________________ 2004 Nissan 350z/LS2/PT88--Project 88 has begun.
Yes they are neccessary....why spend all that money on building an engine then cheap out at the end? Of course people have ran bolts and been okay..but is it really worth saving 100$ now and risking your engine down the road? I went with them now and I dont even need them..its just an extra piece of mind..and its worth the extra 100$
+1 to that. I am not even running a bottle yet and not considering blowing my new motor over the simple fact of a little extra money and reassurance. That's like putting a big cam in a car and leaving the stock lifters with 60-70k on them. Would they work yes, but how long will they last and what happens if you want to up the shot in the near future... Always plan long term and not what you just need now. That is more of a budget build instead of wasting money on something you may swap out to later on anyway. Makes sense you know.
__________________ 1999 BLACK TA M6-Mild 408/Built t56/FAST/ARH/BMR/S60/Etc.. 495/471 SAE#'s 508/479 uncorrected
Race Proven Motorsports Motor- Thanks Fran 2001 RED WS6 M6 #6101 -309whp/320wtq 2008 Black Trailblazer SS-RWD/daily driver
ARP Bolts or Head Studs? 
