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Demon Tweeks

£ 4,900

Mazda 13B peripheral Port engine and 55mm ITB’s setup - SOLD

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Mazda 13b Peripheral port Engine **FRESH BUILT & BALANCED PP, RA Seals, Etc. 

This is a high spec naturally aspirated engine with no expense spared. This is advertised elsewhere so I have the rights to remove at anytime. I am testing the water with this setup as I have spent over a year gathering these parts from all over the world. I am only considering selling to purchase another setup off a friend. In no rush to sell so I won’t be accepting or responding to any low ball offers. I have nearly everything available minus ecu and loom to make this setup complete if needed or you can go carb depending on your needs.


Specs as follows

-0 mile engine

-Fresh built & balanced assembly 13B

-built by era at Oldones racing who has a well known reputation for his work

-13b 6 port FC engine

-Tip clearances

-Rotary aviation super seal apex seals from USA

-Rotary aviation race springs from USA

-Fully balanced assembly for 10,000+rpm

-55mm Peripheral porting & sleeve inserts

-Vband connections on PP sleeves for easy fitting/removal of ITB’s


-Complete new genuine Mazda seal/rebuild kit

-Baffle sump plate

-Upgraded to RX7 FD oil gear due to high revving engine



This engine has the potential for around 300whp

This can be suited for carbs or I have T2 dizzy for injection as planned with the EFI kit pictured (not included in sale) full listing of parts in my other listing 


This price will not include a Built2apex new baffle/trap door race sump and pickup in box brand new


Collection or can pallet U.K./Europe & international


Select £150 for U.K. postage


Message for Europe or international quotes 


Pallet to New Zealand via pallet2ship tracked from UK covered for £7500 value, none stacked pallet. 100kg weight Engine will arrive with no fluids on pallet, shrink wrapped with protection. £1070.00 including insurance. This service can take longer to arrive due to pandemic and customs. 


This listing is for engine only with race pan. Please note this will need 1000 miles run in time before mapping. we are not liable for any mapping or installation problems of this engine. It is sold as seen in its fresh rebuilt condition.

Happy bidding

£4900 engine only 

£5500 with race oil pan & pickup 

£1650 For Alcon twinplate 5.5", mazdatrix flywheel 2kg and quartermaster race release bearing 


reduced to sell