This GSC Power Division manganese-bronze intake valve guide is a single oversize replacement for Toyota 2JZ/1JZ engines, supplied with a +.001in outer diameter. Intended for cylinder head service or valve-train rebuilds, the guide restores worn bores to correct clearance and helps maintain accurate valve alignment and sealing without requiring other head modifications.
GSC P-D Toyota 2JZ/1JZ Manganese Bronze Intake Valve Guide +.001in Oversize OD - Single