I'm just about to order some bits for my XE lump, so that I can replace the head gasket/piston rings, etc, etc...
From when were the new type of head bolts used? I have the rocker cover off, would a photo help identify the ones in mine, as I don't know which ones to order?
It's a 1990 Cav GSi 2000 lump supposedly if that makes any difference. Will I be able to check from the engine number? presumably so.
Also, are their any other early/late changes of things that I should know about whilst ordering bits?
It will get : new cams, wasted valves, rod bolts, piston rings, head gasket(and the rest of the gaskets)... Can't be bothered to go to a cam profile that needs new followers, and deeper valve pockets yet, as I yself haven't got deeper pockets! lmao
engine numbers up to 14137011 you need early male TORX head bolts - part number 90324060 (10 of), engine numbers 14137012 onwards you need the late type female TORX headbolts - part number 90466480 (10 of)
you can get the engine number off your engine block (no really ?) or alternatively its on the blue section of your vehicle registration document.
if you can't get the early ones Brian, it's perfectly ok to use the later female headed ones in an early block like yours - but not the other way round - the later bolts are 5mm or so shorter, but the early bolts will bottom out in a late block.
oh, and the late bolts have a captive washer - the early ones don't, so keep hold of the set of washers from the ones you have, or get a new set.
the later ones are about 20 quid from Vaux, and even cheaper from places like QED - who do em for nearly half that - I'd say get the late ones no matter what engine you got, as they'll work just as good on either.
I just got a set of ARP head studs for 160, I can't tell you how glad I am to not have to be annoyed at having to get yet another set of new bolts - I like to remove the head every two weeks you see, it's a sort of fetish thing.
I would hope that they are of similar construction to the self-locking nuts, like aero-locks ( for the aero industry lmao ! ). most thread locking compounds would melt, or at least be soft enough to slip. A second locking nut sounds poo.
Gary - is it too late to cancel your order with SBD?
Got quoted £74.24 +VAT from Arrow a couple of days ago for what they led me to believe was an ARP headstud kit. - think they sell not only their rods but alos the arp bolts to SBD (but maybe wrong). They also do a main stud kit for £70 + VAT and teh ARP rods bolts for £60 inc.
I'm gonna buy the headstuds and mains next month if they truly are ARP (skint for now thanks to Animal ).