Veteran & Vintage Motorcycle Peco 2-stroke engine 3 H.P. 350cc Calthorpe and many others

Veteran & Vintage Motorcycle Peco 2-stroke engine 3 H.P. 350cc Calthorpe and many others


Veteran & Vintage Motorcycle Peco 2-stroke engine 3 H.P. 350cc.

Calthorpe motorcycles and many others listed below.

Bore is 75mm, which matches the 347cc, 2-3/4 HP engine that was the earliest engine that Peco produced in 1914.

However, the 3 HP 350cc engine also had a 75mm bore. There are a few Calthorpe motorcycles that are on the VMCC register that had the Peco 3HP 350cc engine, so I am going to go with an approximate date from 1919 to early 1920’s for this engine. I think Calthorpe assumed control of Peco engine production in 1919. The stamped number on this engine (A1-17422) is on the VMCC Register and connected with a 1922 Calthorpe.

This engine is also stamped T14 on the side of the engine case and just above, on the barrel. I had thought that T14 might denote that this is a Peco engine made for a customer in the early days of production, somewhere around 1913-1914. It’s conceivable that this is the case and that the other stamped number was “added later”.

Some background on Peco engines:

Pearson and Cole of Duddeston Mill Road, Birmingham, UK, known as Peco, made their own motorcycles at some point between 1914 and 1916. While they made their own motorcycles, they were prolific two-stroke engine suppliers to many British motorcycles of veteran and vintage eras.

In 1914, they advertised a Dunkley Two-Stroke 349cc engine with 75 x 79mm bore and stroke. Having read some of the literature that Peco published towards the end of 1914, they were moving from production of a 2-3/4 HP engine to a 2-1/4 HP Two-stroke engine with a smaller 210cc capacity. The piston shape was altered and the cases were narrower than before.

Following is a list of vintage and veteran motorcycle manufacturers that used Peco 2-stroke engines:

  • Wolf
  • Waverley
  • Trump
  • Singer
  • Ixion
  • Lily
  • Ivy
  • Grandex
  • Ernst Smith & Woodhouse
  • Endrick
  • Edmund
  • Dunkley
  • Dreng & Co
  • Despatch Rider
  • Calthorpe
  • Alfred Wiseman

I imagine there were others, but that’s a good selection. If you would like to read more about the production and supply of Peco engines, go to this page


The engine turns over by hand . There is a piston fitted, together with piston rings, crank and connecting rod. The engine cases are in decent condition and there are no signs of repair or cracks. As you can see from the images there are a few chips to the barrel fins.

I have removed the barrel as you can see in the images. The piston moves freely inside the barrel and it is of STD size (75mm)

Bottom line, this is a 100-110-year old engine that is in a reasonable state, with decent fins, but it will need to be taken apart and rebuilt just to be certain that you will have a reliable engine.

 Other Peco engines:

I happen to have a few Peco motorcycle engines available. If this one doesn’t suit you, please see the others as I have some spares and a few of the larger capacity engines from later in production.

Shipping: Shipping is charged ON TOP of the price for the item.There are too many variables to include shipping in the checkout, so please contact me before you buy and I will give you a shipping price.

I usually ship to most destinations.

International shipping available. Let me know where you are and I will send you a price for shipping with tracking

Combined shipping available. 

Viewing: Please come and check it over before you buy. It is at PE28, near St Ives in Cambridgeshire.

Collection: If you don’t want it shipped, I have plenty of space. If you can’t collect for a while, it’s not a problem. However, I will need to be paid very soon after the sale. Thanks.

Payment: Good old fashioned money on collection is preferred. I can accept payment through PayPal or by bank transfer as well. I can accept EUROS. Please ask. 

Import Taxes: Please note that IMPORT DUTIES are not something I can control. If you are buying from outside the UK, there is a chance that you will have to pay import taxes. Import taxes vary from country to country. If there are charges to pay, it is the buyer’s responsibility to research the cost and pay the duties. The price that you see on my advert is for the item and not the item plus whatever taxes might be due.

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