Standard size: TA 1030/1031 lightly used 12 pulls on the dyno 2.0/1.625 with 3/8" stem Stage 1+ valve springs Retainers Keepers Seals Everything to convert your standard heads to high flow swirl polished stainless steel for bigger camshaft Well over $450 invested Sell: $300 shipped from pgh to any lower 48 states Don