Valve guide
Product number:
423353
exhaust valve +0.005" (2nd oversize). Bronze/silicone type
Product Information "Valve guide"
Jaguar: XJ12 from engine no. 7P45001 (September 1981) • XJS 5.3 V12 from engine no. 8S18001 (February 1981) • XJ40 (XJ) 2.9 from VIN...500001 to 629285 (1986-90)
exhaust valve +0.005" (2nd oversize). Bronze/silicone type
These bronze/silicone valve guides come pre-reamed. Thy must be finish reamed to the exact diameter after pressing into the cylinder head. This is important because the guide will collapse slightly when it is pressed into the head.