I have a standard 850 dont want to change the motor but was after a little bit more guts for the old girl would a set of 1.5 roller rockers and a set of extractors with the standard carb run alright I am already going to put on elecronic ignition as the motor has only done 20k km since being rebuilt. Long term i am looking at a jap engine transplant but want a little more for the mean time. all advice welcomed

As a set of 1.5 roller rockers costs $BIG, and the stock 850 cam is pretty tame, I would change the cam first- then port the head or fit an 1100 one (12G202).
I doubt fitting a $500 set of rockers alone with stock will make more than a couple of HP (maybe).
You can do a cam change on an 850-998-1098 whilst engine is in car.

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Change cam, bolt on a bigger head as suggested. Whack on some extractors, RC40 exhaust and twin 1 1/4 SU's and you'll have a pokey 850

_________________
Lillee - 1969 Morris Mini K

I`d just leave it the way it is ,,,putter around in the thing & save yourself some money, spend that saved money somewhere usefull & constructive instead

_________________
No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.

like on a jap import engine swap theminiman just fix the body for now and save the big dollars for the engine swap

what can i do as far as dizzy is concerned should i get a pulsar one if so which one for a stock 850

Read this How To:

http://forums.ausmini.com/viewtopic.php?t=12376

_________________
Too many cars, and too little time.

Whack on this, bolt on that, yada yada.

Mate, cheapest way out is to change your engine, pref a 1275.

Keep it simple.

What and also buy disc brakes for $2000 as well so that you can register the thing? Not cheap, not simple!

_________________
Lillee - 1969 Morris Mini K

Depends on what state chong

IMO change the cam for something else like a stock 1100 or RE13 and the head to a 12G202 off an 1100. 1100(12G202) heads are really cheap.

Also to get the best out of the head and cam upgrade your carb to a bigger one and get some extractors.

It does sort of follow on from it'self doesn't it still it would be cheaper than getting a 1275 and disk brakes.

_________________
---
Roads need more corners
A Deluxe(CG13DE), 2 Clubbies(998 and 1275) and 2 Morris 1100Ss