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Rover K-Series Engine Transplant
The Rover K-Series engine is one of the more popular modern engine conversions for the Morris Minor. It comes in a choice of 1.1, 1.4, 1.4 16v, 1.6 16v, 1.8 16v and 1.8vvc form, and in standard form produces up to 145bhp. Over 200bhp is possible from the 1.8!. More than enough to make a Minor sit up and take notice of what's under the bonnet!
The K-Series features in the Rover 100, 200, 400, and 600 range. There are also a large number of specialist companies producing performance tuning parts for the K-Series engine, especially since the MGF roadster uses the 1.8 K-Series engines as well. So if you find that 145bhp is not enough in a Minor, then I'm sure you could find someone to extract a bit more for you ...
I first met Jonathon Heap at the Blenheim Palace event in June 1998 where I saw what he was up to and was immediately impressed. JLH had a Van fitted with a 1.4l engine, and apart from being slightly too high (as their development 'mule', they had modified the bulkhead to get it to fit) the engine fitted in very nicely. Jonathon promised me that they had devised a slightly different engine mount that would enable the engine to be located lower down and slightly further forward, eliminating any need for modifications to the bulkhead. This was the first K-Series transplant they had done, and they freely admitted that it was still 'under development', but these things always are!
That 1.4l engine has now been transplanted from the test Van into a customer's Traveller, and having been for a test drive in it I am VERY impressed. The performance is very, very good (not startling, but then I didn't expect it to be - a 1.8 would see to that...) and the ride is firm and very flat around corners. We took a few roundabouts at speed in the wet, and the tail stepped out slightly but was held nicely with a bit of throttle. Very confidence-inspiring. There is a fair amount of induction roar from the performance filter, but it was, admittedly, not in the optimum position, having been placed out of necessity at the back of the engine bay. With a little more work on the plumbing it should be easily repositioned down towards the cooler air at the front of the engine bay and therefore further away from the cabin.
The 1.4l Traveller has since been tested on a rolling road and with JLH manifold, exhaust and performance air filter, the dyno recorded 127bhp at the wheels and 122 foot pounds of torque! Considering that the standard 1.4 K-Series puts out only 103bhp at the flywheel, that's pretty impressive stuff. Imagine what the 1.8i is going to be like...
After questioning Jonathon on every concern I had with putting over 120bhp into a Minor, I came away feeling confident that the kit would do the business. JLH's philosophy of doing a complete job, including chassis stiffening as well as brakes and suspension, rather than just shoe-horning a bigger engine in, seems to me to be the only way to go. I want a car that stops and goes around corners as well as going faster. I also want the car to be still in one piece in 10 years time.