If your on the west coast, buy from here.
If your on the east coast, buy from here.
Contact either one of them, they will sell you what you need.
Don't waste your time and money going somewhere else. These guy's know these cars.
174,000+ miles, 5/20/12 new ej257 short block, 8/20/11 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. Also CHECK YOUR OIL, these cars use it.