General
Classic Mini Engine Accessories and Parts
Created: September 04, 2019
Mini Mania is the online home for all the best engine accessories and parts for your Classic Mini (1959-2000.) Shop the best in Classic Mini camshafts and timing gears, clutch, cooling, cylinder, engine components, exhaust, gearboxes, pistons and complete engines.
Horsepower Boosters for Your Mini
Created: January 30, 2018
If you want more horsepower from your Classic Mini's engine try one or more of these performance upgrades. Get live, specialized phone support with one of our experts.
Pre-Owned & Tested Powerunits
Created: October 31, 2017
These pre-owned Classic Mini power units have been tested by the experts at Mini Mania for compression, oil pressure and blow-by. Our pre-owned assemblies includes everything from cylinder head to clutch and transmission and are ready to bolt in to your Classic Mini and go!
Created: March 14, 2014
Building the lower End
Created: October 09, 2012
How To: Engine stand mounting bracket for A series
Mini Mania Crankcase Ventilation Kit, C-2A265
Created: February 03, 2011
This kit provides an internally baffled housing which enables the fuel pump port on the engine block to be used to vent the crankcase. The kit also includes fasteners and gaskets to mount the fitting but does not include a hose fitting and hose.
Detailing The Engine & Under The Hood
Created: January 25, 2011
Did you know a detailed engine increases the resale value of your car?  It's a well-known fact that people who take the time and effort to detail their engines also take better care of their cars.
Created: March 01, 2010
TECH INFORMATION FROM CLEVITE ENGINE PARTS
Mini Automatic to Manual Conversion Basic Information
Created: February 24, 2010
This overview of the basic steps to convert your classic, English-built, Mini from an automatic to a manual transmission covers the five main changes, and which items, such as modifying the engine block, should be left to an expert.
VTEC Conversion Kit MTK Installation Manual
Created: March 19, 2009
VTEC Conversion Kit MTK Installation Manual courtesy of MiniMania.com
Locating a VTEC motor for your mini conversion.
Created: March 19, 2009
Locating a VTEC motor for your mini conversion.
VTEC Conversion Kit MTB2 Installation Manual
Created: March 19, 2009
VTEC Conversion Kit MTB2 Installation Manual
Created: June 24, 2008
Protect Your Engine: Using MagDog as an Optimal Solution
Mini Cooper Harmonic Damper
Created: January 25, 2007
MINI Cooper Harmonic damper is designed to balance our the vibrations inherent in all engines. The same theory of operation applies to both Classic and BMW MINI Coopers
Created: July 21, 2006
We all long for the power and torque available from a 1275cc engine, but with these becoming more expensive and harder to find, we’ll take a look at how to get some decent power from the smallbore engines. Graham Russell of Australia shares his ideas.
Mini Identification: Identifying Minis by Engine/Power Unit
Created: February 13, 2006
Classic Mini Identification: Identifying Minis by Engine/Power Unit When is a Mini, is a Mini, is a Mini? Most current or potential Mini owners have no idea how to tell what kind of Mini they have. In fact, in many cases they don’t even know there are really so many different Minis.
Created: January 30, 2006
Deves general Tips on Engine rebuilding
Created: January 30, 2006
DEVES rings and ring sets are based on detailed engineering drawings as well as actual engines. They are manufactured for almost all current American and Foreign engines, with some model coverage as far back as 1928! All DEVES rings are checked for fit by a specially-designed light-beam microscope (if light doesn't get through, neither will oil), and they meet or exceed SAE, DIN or BNA standards.
ARP Bolts & Fasteners
Created: January 28, 2006
Fastener Retention Overview There are three methods that can be employed to determine how much tension is exerted on a fastener; using a torque wrench, measuring the amount of stretch, and turning the fastener a pre-determined amount (torque angle). Of these methods, use of a stretch gauge is the most accurate.
Created: November 21, 2005
To improve engine out-put, you need to increase the engine's 'breathing' ability. The stage one kit deals with all the easily bolted-on external parts, and represents the best increase for investment. From here on in the power increases will cost commensurately more money.
Created: August 08, 2005
While the ULTRIK VTEC Subframe makes an engine swap easier, there are still several challenges to overcome when installing the Honda engine in your Classic Mini.
Created: August 06, 2005
Complete 1380cc Supercharged Motor Serious Horsepower for the serious driver! Mini Mania has developed and produced the ultimate in bolt-on performance for the A-Series motor. Modern technology in compressors, modern manufacturing and Mini Mania engineering have resulted in serious performance improvements unheard of in A-Series history.
Big-Bore Power Units from MINI MANIA for the Mini Cooper
Created: August 06, 2005
Big-Bore Power Units from MINI MANIA for the Mini Cooper
Classic Mini Engine - Metro engine identification data
Created: August 12, 2004
This simply guide will help you identify your Mini or Metro engine when original serial numbers are still in place. A word of warning - whilst the data given here is as accurate and complete as I could make it without 6 months-worth of hermit-like investigation, there are bound to be oddities. Austin/Morris, BL/Austin Rover Group/Rover were never dedicated at keeping 100% correct records, particularly post 1970 - that's why Heritage really struggle with trying to identify cars manufactured after 1969. The Metro data - or lack of it - proves the point. It's nothing like as comprehensive as the Mini stuff.
Classic Mini Engine - Identification Data UPDATED
Created: September 05, 2003
If you have the engine tag still attached to the engine - just in front/below the thermostat housing - or perhaps the original engine number in the log book then the following should help you determine which engine you have. For Metro units, see 'Engine - Metro identification data'.
ENGINE - Reliability of the 1380
Created: December 12, 2002
I know I have taken pains to explain that you don't have to have a 1380cc with very sporty cam profile and so on to have a decent, satisfyingly quick road car - but this reliability problem is absolute hogwash.
Created: September 19, 2001
Some folk have tried the suggestions regarding lowering induction charge temperatures - and have been astonished at the results. Others have got the wrong end of the stick, and found a myriad of problems. So here's a quick trip through what it's all about to add real on-track performance at a modest outlay.
Created: July 03, 2001
Ben Howes 8 port has been at various shows this year, and was good enough to bring it down to Mini Spares' open day, with New Mini Spares 8 port fitted.
Austin Mini Cooper Engines - 1098, Initial Tuning
Created: April 03, 2001
The 1098 (1100) engine has had a lot of bad press over the years - largely because of early experiences when trying to tune the motor brought about problems with the then standard components available - they simply were not up to taking any real punishment as experienced in racing.
Austin Mini Cooper Engine - 998 TUNING
Created: March 05, 2001
Following on from the easily bolted on performance enhancing components out-lined in the stage one section, we need to consider where to go to get more power output. To improve the 998cc engine out-put, you need to increase the engine's 'breathing' ability. The stage one kit deals with all the easily bolted-on external parts, and represents the best increase for investment.
Classic Austin Mini LUBRICATION - Oil pumps
Created: January 24, 2001
Essential to the well being of every engine is its oil pump and oil. Much in the same way as the heart and blood is deemed relatively important to us humans! It’s also another of those greatly misunderstood and, unfortunately, misrepresented subjects connected to engines.
Created: January 19, 2001
This is another of those subjects that crops up on the message board frequently. I am constantly surprised by the number of engine builders - or people who charge other folk for building engines at any rate - that never hand out such an information sheet. It seems pretty daft to me that having taken a wad of money off of a customer for an engine you've lovingly put together, you'd want to help that person get the very best out of the engine.
Austin Mini FLYWHEEL & CLUTCH- General information
Created: November 27, 2000
If there's one subject that gets washed over when transplants or modifications are discussed its the flywheel and clutch assembly. There also seems to be a widely held belief that up-rating an engine from anything other than standard automatically requires a ‘competition clutch’. This, as with many other subjects concerning the Mini, is a myth.
Austin Mini Cooper Flywheel & Pressure Plate- Technical advances
Created: November 27, 2000
Great leaps forward in technology since the Mini’s inception have been constantly applied to all forms of automotive applications. The Mini flywheel and pressure plate are no exceptions. If for no other reason than weight reduction - an admirable one considering the effects it can have.
Classic Austin Mini Cooper Flywheel - Verto type, injection
Created: November 22, 2000
The advent of ECU-equipped fuel injection saw the need for a trigger system to provide the ECU with information on engine speed and piston position. In their infinite wisdom, Rover decided to fit a reluctor ring into the rear of the already humungous iron flywheel section. Identical in all aspects to the non-injection flywheel except for this reluctor ring and the raised ridge it is fitted into.
FLYWHEEL & PRESSURE PLATE- Effects of lightening the assembly
Created: November 22, 2000
How does this affect performance? Not as many folk believe, that’s for sure. For a start, lightweight flywheel/clutch assemblies don’t necessarily give rough running at idle, particularly where a performance cam is used.
Austin Mini Cooper Flywheel - Pre-Verto types
Created: November 21, 2000
With the exception of the fact the two-piece flywheel is two pieces bolted together - this and the later one-piece cast item can be treated as the same thing. They will universally fit all transverse engine cranks from 1964 onwards, so that should be easy enough. If all you can get is the hulking great 1300 type, then this too is as universal to fit, but I highly recommend you get that extra cast lump machined off of the outer edge as a bare minimum.
Created: November 03, 2000
Engine mountings are a whizz to fit as the Mini ones fit straight onto any of the other units. Just remove the Metro/AA/1300GT ones and swop the mounts over from the Mini unit. If they’re split, fit new ones, they’re cheap. If using the AA/1300GT unit - it's advisable to cut off the 'wings' on the front plate that carried the engine mounts on the radiator end.
ENIGINE TRANSPLANTS - Changing FDs and speedo drive ratios
Created: November 02, 2000
If you’ve decided the FD fitted isn’t what you want, changing the FD is possible without separating the engine from the gearbox. Removing the diff case will allow you access to the diff assembly to change the crown-wheel, and access to the gear-change linkage.
ENGINE TRANSPLANTS - Clutch and flywheel assemblies
Created: November 02, 2000
To go in to all the possible permutations would take a few chapters on it’s own. Suffice to say that the Metro had a few weirdo fitments such as cable operation, an in-line ‘damper’ (some got fitted to Minis too - eek), and ‘top-hat’ plunger and rod bearing operation. The Mini only has two -
Classic Mini Cooper ENGINE TRANSPLANTS -
Created: October 31, 2000
Is this familiar? - You take the small one out; you put the big one in. In, out, in, out, shake your fist about, you do the hokey-cokey and you turn around, that’s what it’s all about...kinda sums up the situation many folk find themselves in when attempting to endow their beloved Mini with a more impressive turn of speed.
1275cc A Series Engine Color Schemes, Sprites & Midgets
Created: June 19, 2000
Only engines bearing a 12CC engine no. prefix were painted in British Motor Corporation Engine Green (the color somewhere between sage green and olive green applied to the power units in most BMC motor vehicles, including all the Sprite and Midget variants prior to 1967). This equates to roughly the first year of 1275 production.
Cooper Engine Tuning Data
Created: June 14, 2000
The tables below shows the factory tuning specifications for the various models of Mini Cooper. If your engine is modified, these settings may no longer be valid or provide safe operation of your engine. These specifications are those as given by British Leyland at approximately the end of Mini Cooper S production in 1971.
Cooper Engine Data
Created: June 08, 2000
A comprehensive and detailed table of Mini Cooper engine specifications.
Oil Pressure Regulating Kit, HPS4
Created: January 30, 2000
This kit includes a new oil galery plug with an adjustable knob and a washer which is used as a spring seat in the plug against the relief spring. This makes a playform for the adjuster bolt to adjust the engine oil pressure.
How to Perform A Successful Engine Run-in on Your Classic Mini
Created: January 29, 2000
Installing a new rebuilt engine in your car will give it a major “shot in the arm” in any number of ways. In order to get the most of this change we suggest that you take the time while the engine bay is empty to
Belt drive for charging systems C-AEA536
Created: January 29, 2000
This kit is an ‘add on’ for the C-AEA534 toothed belt water pump drive for the charging system. The large alternator/dynamo pulley is driven from the water pump pulley by a separate belt, thus ensuring the vehicle is still driveable should the charging system belt fail as the water pump will still function.