Has any forumist got one,had one,or used an LAP head?
Did they give a useful performance increase over a tuned side valve.
From the pictures I have seen the inlet manifold is cast into the head with the carb mounted to the outside of the cylinder head.
Would any one have any bits for sale?

Are you talking about the LAP overhead valve conversion? If so, then yes, I have driven a Boyd Carpenter a number of times with one of these fitted.

It sounds completely different from a normal Austin Seven and although there was no "significant" difference in top speed or pick up the car definitely had noticeably more torque.

Parts are very rare and I concluded that the effort in amassing these and fitting them outweighed the gains I noticed in driving it.

The car is less than a mile from me here and if you would like photos and more information I am happy to help further.

Thanks for the offer Ruairidh,I had wondered how good,or bad the combustion chamber shape was.
I have considered trying to OHV with an OHC morris minor head as Brian King has done,but the combustion chamber shape is similar to an "A" series engine,with studs through the inlet ports,then there is the cam drive issues.

You are very welcome, I will attempt to obtain some photos of the combustion chamber for you.

I know of one other LAP OHV conversion in use and that belongs to John Harris, it is fitted in his GE Cup Model. He has used this car for many years on this set up. E-mail me if you require his contact details, he a wonderfully helpful man and will quite honest in his practical experience of this conversion.

A candid appraisal if ever I saw one.

I have a LAP OHV conversion on a 1926 MG (Morris Engine) and it gives excellent service, indeed given the extra bottom-end torque, it will traverse most hills without a gear change.

Location: Barrington

Going back to the discussion on this interesting A7 OHV conversion, I have found a note in a 1975 '750 Bulletin' which states that according to Barry Clark these were sold by an engineering firm called LAP Engineering of Putney. The article goes on to quote an article by Ian Norris from The Austin Magazine regarding a GE Cup Model on display at Beaulieu in Jan 1964 fitted with an OHV conversion sold in the 20's by Mr Anthony Lago, a Frenchman who had a business in London. Lago is better known for his post war associations with Lago Talbot racing cars.
Not sure if these were all LAP OHV conversion or even the one Ruairidh is referring to but there could be connections - I originally thought that LAP was made in France?

Tony.

Location: Malvern, Melbourne, Victoria, Australia.

Yes he won both in the same year in the Rolt Ulster, but not simultaneously that wouldnt be possible, the races took place a different times!

I was searching for an image to put to a letter from L.M. Williams about OHV heads from 1950, here when I read here that LAP were based in Putney. If you read the next post, you will see why that feels rather serendipitous!

Coming to this party a little late, only just found this website.

We have one of these LAP Overhead valve heads, it came on a '26 Chummy Dad bought 40+ years ago. It's destined for the new engine in our Type "65"

Cheers
Greig

Port Elizabeth
Sunny South Africa

Location: Port Elizabeth; South Africa

LAP Engineering Co were based at 1A High Road Kilburn London NW6. Tel No Maida vale 4273.

They made ohv conversions for Morris Cowley, Oxford and MG Sports ( Morris engined) £24

Austin 12hp £30

Austin 7hp £25

They claimed increases acceleration, power on hills and maximum speed