Cooper S 1275 engine + kit of bits : USA

Want to sell something? Here's the place to list it for free! (DIRECT SALES / SWAPS) No ebay links please.
Forum rules
For Sale Section Rules

PLEASE NOTE! Postings in this section are deleted automatically after they have not been looked at for 30 days.

1) This section is for advertising items that you have for sale. Not for the discussion of listed items. If you wish to debate the pro's & Con's of any item listed, please start a new topic in the appropriate section.

2) Please DO NOT post links to your ebay auctions. This section is NOT for the advertisement of your ebay auctions.

3) If you have a number of items to sell, post them in a single ad marked "Multiple Parts" or similar. DO NOT post many individual advertisements as this forces everyone else's listings down the page.

4) It is expected that any items advertised on the forum are described fairly & honestly. It is the duty of the seller to ensure that this is the case.

5) Items listed for sale should WHEREVER POSSIBLE* be offered with a purchase price, not asking for bids from members. If you wish to auction your item to the highest bidder I would suggest you use ebay & pay the associated fees.

6) This section is offered as a free service to enthusiasts. Any deals made are between the buyer & seller only. The MK1 forum takes no part in any transaction & the appearance of any item in this section is not a recommendation. I strongly suggest that both buyers & sellers are happy to proceed with a deal before any money or goods change hands.

7) It expected that people posting items for sale are "Active Members of this community". Any Adverts placed by members with a post count lower than 5 will be deleted.

8) The advertising of or soliciting for VIN tags, log books or any other vehicle identification documentation without it's associated vehicle is expressly forbidden. Any member breaking this rule will have his membership terminated with immediate effect.

9) If a moderator considers any postings in this section to violate either the spirit or word of these simple requests the MK1 Forum reserves the right to delete any posts without prior warning or explanation.

10) The posting of items for sale on the MK1 forum constitutes explicit acceptance of these simple rules.

11) Members posting items for sale MUST include a rough location in their profile.

It would be much appreciated if sellers could leave the sale price on adverts after the item has been sold. This acts as a good measure of current value for other sellers.

* In some cases it may not be possible for the seller to list items with a sale price. In this case, listings will be reviewed on a case by case basis by a moderator. The moderators decision will be final.

Mark S Forster
(MK1 Performance Conversions)
Rev 2.10 (06.10.20)
Post Reply
User avatar
iain1967s
Posts: 1602
Joined: Sat Jun 10, 2017 12:46 am
Location: Cambridge, MA, USA

Cooper S 1275 engine + kit of bits : USA

Post by iain1967s »

I was going to rebuild my original S engine to keep as a spare, but I need to clear some space so am offering it for sale here as a job lot.

Block is a Sept 1965 casting AEG312 currently at +20; head is correct AEG163 with unleaded seats; crank, rods etc. are the original S forged parts. Built up by me in 2018 using NOS or quality modern parts. e.g. ST510 cam from Mini sport, IWIS timing gear from Calver, AP blue clutch.

More details with photos in the 2018 build thread here: http://mk1-forum.net/viewtopic.php?f=5&t=23863 If there is serious interest I’ll pull everything out of the boxes to take more current photos.

It was a good runner when removed earlier this year, oil pressure 50psi hot at idle. The engine has less than 3000 miles on it since being installed in 2018 - I don’t know if I glazed the bores during running-in, but it has too much blue smoke for my liking. I have a new set of +20 County S pistons and Grant rings if you want to try honing it to de-glaze, I also have a +30 set of the same if you choose to rebore. Both sets are included in the deal.

I was going to rebuild it as a complete drop-in spare, so I’ve got the following [mostly MiniSpares] new parts ready to complete the final assembly: NOS rear tappet covers, 3-row S radiator and S cowl, evo water pump + Kevlar hoses, BMH export fan, Mocal oil cooler and hoses, Maniflow freeflow exhaust manifold, Payen head and exhaust gaskets, repro S distributor & starter motor. No dynamo/alternator, inlet manifold or carbs.

Transmission is non-S Mk3 mini remote 3.65 diff on 22G846 4-synchro box, it works well enough but could do with new baulk rings - I have a replacement set. As this is a pre-66 engine, the diff has yoke outputs not Hardy Spicer flanges; I have the original used white QL5000’s removed from the car, and a new repro black set.

I also have a complete Hardy Spicer conversion set - output shafts, flanges, diff covers, seals, bolts & collets, and 3.44 CW/P - if you want to convert it from yoke to flange to run in a post-1966 S.

All located in 02140 Massachusetts, USA. Buyer collects, or arranges local pickup.

Asking $4000 total for everything as above.
Post Reply