1275 Cylinder Head on 998 Mini Part 2

Time to clean up the cylinder head to prepare it ready to go on my 998 A+ engine.
It's starts off looking a bit ropey but turns out good.
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[@MiniMattTV]

Don’t mind me, just here borrowing your measurements from this and the next video 😝😝 nice useful video as always

[@Thecarislife]

Your the second person to comment on this series in the recent weeks

[@grahaminaus]

Great work Adam, we used to cut valve reliefs in blocks for Mini 7 engines using 12G940 on 850 and 998 blocks, it is definitely possible to do yourself, either a milling cutter in a pillar drill, or even by hand (carefully!) with a carbide cutter in a die grinder. Well done for trying something different!

[@Thecarislife]

Thanks. I have been looking at my pillar drill and seeing how I could use that.

[@LoneStarMini]

You're daring to wear that nice looking watch while working on car parts.. If that were me, I would have it all scratched up. good bit of information there Adam.. helpful.. thanks

[@Thecarislife]

I usually wear it to start with and then take it off after a short time. I don't want to break it

[@BMCWorkshop]

Great video Adam, looking forward to the next one

[@Thecarislife]

Thanks Sean. It'll be out next weekend. I'm planning to get through this quick because I miss driving my mini already

[@minimanshed8910]

You just blew my mind adam, doooh !

[@Thecarislife]

😂 😂 Is that a good thing?

[@classicminiworkshop]

Nice one Adam

[@Thecarislife]

Thanks Keith

[@jamesbarrie2965]

Nice update, my 998 runs a big valve head . I’ve got a 1275 head I thought of using before but never got round to it.

[@Thecarislife]

Which one do you have on now? Is it a 12g295?

[@jamesbarrie2965]

I’m not sure, will check later and let you know. I remember being told in the past that it was possible to run a 1275 head without the pockets in the block but I’m not sure if it is.

[@Thecarislife]

If you have a standard cam or an mg metro one i belive it's possible. But I'm running a minispares evo001 cam which has a bit more lift

[@jamesbarrie2965]

It looks like 12G20 and I can’t make out the last digit as the rockers etc are still on it, the head was ported and polished when I got it. I was thinking of the MG metro head and cam onto another block I have when the bodywork is complete.

[@Thecarislife]

Awesome. I'd love ported and polished one. In fact I'd like to have a go myself one day. Will get a spare first lol

[@ClassicCarCave]

Adam, What a difference after you cleaned the head up, Interesting to see just what parts you will use, Cheers Dave

[@Thecarislife]

I think it was in quite good condition but had just been left neglected for some time.

[@philtucker1224]

(- or make 4 slightly cardboard circles to push down over the piston crowns first)

[@Thecarislife]

I like that idea

[@DBMiniDIY]

That cleaned up really well mate, great vid, u not tempted to fitted hardened seats while its all stripped?

[@Thecarislife]

No but only because I'm tight. The 12g940 heads seem relatively cheap so I'll perhaps get another one at some point

[@DBMiniDIY]

@@Thecarislife 😂😂fair enough, it only took a few days for my mini spares delivery so hopefully you will be cracking on soon

[@hankpb1]

any tips on moggys

[@Thecarislife]

In terms of fitting a 1275 cylinder head? I'm not sure to be honest I haven't worked on a moggy. I'd assume the same conditions apply as the mini 998

[@liamwallace2121]

That heads come up nice and Is it just exhaust valve side that needs the relief cuts doing

[@Thecarislife]

Yes it is. The 998 bore is too small to fit both inside lol

[@liamwallace2121]

Adam Campion haha im looking at doing wht you have done but going off of online proces i may aswell pay an extra couple hundred quid and get a conplete 1275 😂 also do you need to run anything else with the 1275 head such as smaller pulleys for clearance or whatever

[@Thecarislife]

Yeah I think the standard water pump pulley on a 998 will foul the head. I have a smaller one anyway because I changed it a while ago. I might also have to trim a little bit off the water pump. To do what I'm doing properly with proper machine shop work would get quite expensive I think. But I like to play around