sounds like rod knock, the valves are not addjustable if you need a 3.0 swap ill give you a good deal on labor.
98 svt sil/blu 3.0 oval heads full P&P, msds headers,bat kit,2,1/2exhaust 30 inch glasspack and 2 spintech mufflers
14.78@94mph
with my mechanical arm i can shift gears in less then a twentieth of a second for sale $7000
