Page 88 of Master Jaguar Catalog by XKs Unlimited

performance cylinder head preparation 3.8 liter xk-150 cylinder head prepared by xks unlimited new stainless valves bronze guides performance valve job cams installed ready to make horsepower on your engine a properly built and turned out cylinder head can make all the difference between serious horsepower and just a lot of money down the drain xks extensive experience with jaguar engine building pays dividends to you once more cylinder head choose a level of build-up from the descriptions below and either send your head for this modification or buy an exchange cylinder head prepped as you choose this latter choice is more expensive of course but allows you to keep your original head in its unmodified condition xks unlimited has been doing quality jaguar engine work for almost 30 years we know the xk engine and how to repair them right the newest xk engine is now over 18 years old and most sports models are 35 years old most of these heads have seen years of abuse and rebuilding it has gotten to the point where we can no longer give a package price to repair all heads because each cylinder head has it s own combination of problems and needs the following description is a general guide only prices are quoted after inspection of your cylinder head three stages of preparation stage 1 good for any restoration · all new intake and exhaust valves · all new intake and exhaust valve guides · all new cam followers · all new cam bearings · all new valve springs · tappet guide hold-down kit 1 7-3589 installed · all new valve spring retainers and keepers on early engines this allows fitting of valve stem seals · resurface head · 3-angle valve job · hand lap valves · installation of cams and setting of valve lash · head polished and painted to original color specifications · replace damaged and broken studs as required common extra-cost items as required ·· corrosion and/or crack damage repair ·· new cam follower guides ·· new valve seats ·· new cams stage 2 good for restoration or street use where extra performance is desired · all of the operations from stage 1 plus · · · · · · · · install all new valve seats install 17/8 intake valves install up-rated valve springs re-ground cams of your choice special racing-grade valves oversize cam followers and guides for high lift cams port and polish combustion chambers cc d billet .51 lift cams 0 stage 3 suitable for all-out racing engines for vintage racing · all of the operations from stages 1 and 2 plus xks unlimited has a couple of options for the original steel shim style 3.8 head gaskets solid copper gasket a bullet-proof resolution to gasket worries suitable for vintage racing or a reliable street engine copper composite composite material gasket made from modern style composite gasket material ideal for street applications providing long life and will withstand modern high compression 01-ae530c 01-ae540c composite 3.8 street head gasket composite 3.8 racing head gasket 01-ae540comp 1 7-3557 solid copper 3.4 head gasket solid copper 3.8 head gasket 84 orders 800 444-jags 5247 · fax 805 544-1664

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