Hello All ,
My 1970 C.S has a MK 1 C.S engine could BMC have stock of the MK 1 engines and had to use them ?
Also my C.S has never had the metal strip, which is welded to the bottom of the roof channel one each side.I have seen one other mini without this strip.
Allen

if you check the MK1 register, the answer is "no", it was the other way around - late MK1s had MK2 engines

your engine number (9FSAY44226) is in the range of cars that were built in July '67

the last MK1 engine numbers were in the 51,000 range before they changed over to the MK2 blocks, and it looks like the numbering kept on going from there

viewtopic.php?f=44&t=90843

edit: is there any evidence spot welds for the drip rail at all? I took mine off early last year because a bit of rust was forming, I do want to put them back on but only when I find some that are correct for an Australian car

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did I tell you that I won a trophy?

and people swap and change "Cooper S" engines as they see fit...I once spoke to a man who had a MKII engine in a MK1 he was selling "because he wanted to keep the MK1 engine for his MK1 car"...

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"Show me the Mini!"

Back in the 60s and 70s they were just another (but higher priced) Mini, when the engine expired most people got an exchange recond one from Repco or wherever.
Matching numbers? Nobody then gave a toss.

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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.

I checked the mk 2 register early mk 2 had the mk 1 engine 9FSAY
Allen

only 2 of them?

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did I tell you that I won a trophy?

I had what I believe to have been an early mark 2 as my first Cooper S in 1970. It was Malmo green, black interior, with factory flares, reverse lights wiring in the loom, Alternator with external regulator, Mark 1 heater, Mk1 brake booster and Mk1 9FSAy engine with 3 speed synchro gearbox.
A pity I never kept any paper work to verify numbers.

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1969 Cooper "S"
1967 Mini Deluxe
1973 Clubman Van (the fleet spare)
1978 ex 1275 LS ("Wizard" Eaton Supercharged)
2015 HSV GenF GTS(occasional drive & tow car)
2019 MINI F55 Cooper S

Could be a cheap Mk1 engine for sale soon

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1965 Morris 850
1966 Morris Mini Minor
1967 Morris Cooper 'S'
1977 Leyland LS

No such thing .

maybe for sale I only spent $7000. on the engine and box

Hi
I own a early mk2 with a mk1 engine in it from factory.

is it in the register?

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did I tell you that I won a trophy?

Yes

Sounds like car 501

That's right