I was just at Pampena Motorsports this past saturday to finally get my 4 year build tuned(super exciting as you can imagine).. Well right away Ray noticed something wasn't right, and sure enough my cometic head gaskets were not holding. I was getting exhaust gas in the coolant passages, and pushing coolant out the overflow. Ray was really cool about it, didn't charge me for his time or anything. He suggested I put fresh OEM Head Gaskets, and Head bolts(had ARP studs on there). So I set myself on a mission to be back on the dyno in just one week. I ordered the parts from Cherry Hill, because I knew they would be in stock and I could just go pick them up, which I did (5 hour round trip).

Well I finally get my rear head off and find damage to all 3 rear pistons, and also my head. It looks like something had gotten into just the rear bank somehow.









These are Ross pistons by the way. Power goals are 550awhp on 93 pump gas, no meth or anything. Would you run them?

Should I continue with reassembly or would those spots cause further damage?

Full list of mods are below:
Shortblock: Ross pistons 40 over, forged crank, shotpeened rods, ARP rod bolts, 3SX crank pulley.
Heads: Stage 3 Port & polish, 3rd gen lifters, dual hi-rev springs, titanium retainers, ARP head studs, Fidanza Cam Gears.
Drivetrain: Pampena built 5spd, Bellhousing brace, 300M 25 Spline OP shaft, Maximal T-case brace, SPEC Stage 3+ clutch, and RPS flywheel.
Cooling: FFdynamics rad and fans, IPS Setrab Oil cooler.
Fuel: Hotwired Walbro 400lph fuel pump, -6AN feed/OEM feed as return line, 3SX Fuel Rail Loop, PTE 680's, AEM AFPR.
Goodies: 3SX TD05 kit, AEM EMS, Modified CX Racing FMIC, AEM TruBoost, ATR Exhaust.

Thanks,
-Adam