Are these E type parts please

[Polome]

Long time ago my '69 4.2 E dropped a valve damaging head. Car was repaired ( with secondhand parts by garage) and old head & cams returned to me with the car. Now Years later and car long gone Im having a good clear out so though I would put them on flea bay cheap for reconditioning. Had a potential buyer surprise me by saying the cams are from a XJ6 as they have 4 bolt fixings at drive sprocket ends. When I bought the car it was 15 years old and I thought it had the original engine ,it did have the reeded cam covers. . I have included some pics of head & cams and wonder if any tech can shed light on E type or XJ6 items. Thanks in advance. Ian

[Polome]

Adding cyl head pics

[a8hex]

Above the cast MC20889 there is a section which has been filed slightly flatter and I think this should have a Jaguar part number stamped into it. The photo looks like it does have something on there but I can't read it in the pictures. I don't know when Jaguar switched the number of bolt holes used to secure the cam shaft to the drive sprocket but the original Jaguar service manual from the XK120 & Mk7 only show 2 and the XK150 & Mk2 heads I have handy again only have 2.

[jith]

Polome said:

Long time ago my '69 4.2 E dropped a valve damaging head. Car was repaired ( with secondhand parts by garage) and old head & cams returned to me with the car. Now Years later and car long gone Im having a good clear out so though I would put them on flea bay cheap for reconditioning. Had a potential buyer surprise me by saying the cams are from a XJ6 as they have 4 bolt fixings at drive sprocket ends. When I bought the car it was 15 years old and I thought it had the original engine ,it did have the reeded cam covers. . I have included some pics of head & cams and wonder if any tech can shed light on E type or XJ6 items. Thanks in advance. Ian

In that year there was absolutely no difference between the 4.2 XJ and the EType cams. The only different cam profile then was the 2.8 XJ. The engines also had the black ribbed cam covers as standard which, incidentally are far superior to the polished aluminium as far as sealing is concerned, although they don't look as pretty.

The change to 4 bolt was I think in '68 when the whole engine was updated to a slightly longer stiffer block with external ribbing and extra cooling channels at the rear. These cams will fit early heads however making them easier to sell.

J

[Polome]

Many thanks for the above...it clarifies the source of these parts and gives me confidence I bought correctly all these years ago...although the day of the blow up !!!!!!!! Best regards. Ian