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Our basic replacement unit fitted with
Crack tested crankcase
Reground crankshaft
New main bearings
New big end bearings
New camshaft bearings
New barrels
New pistons with new piston rings
New gudgeon pins
New flywheel oil seal
Refaced flywheel
New spark plugs
Remanufactured cylinder heads
New valves
Supplied as single port or twin port
Supplied with fitting gaskets
Hot bench tested
Guaranteed for 12 months / 12,000 miles
A £400 refundable surcharge will be added at the checkout

Machine Shop

We have a fully equipped machine shop with all the specialists tools and epuipment to offer you a machine service for home re-builds. Please call in, or we can offer a collection / delivery service. This is just a small list of our services, crankshaft grinding, a-line boring, cylinder head fly cutting and case / block boring.

Crankshaft Grinding

We have one of the last Prince crancshaft grinders they made. This allows us to re-grind our crankshafts in house. After grinding they are then micro polished to leave the perfect finish. This is a service we offer for home rebuilds.
Aircoold crankshaft regrind £85 or check and polish £29.99.

Aline Boring

We are able to aline bore aircooled crankcases including cutting the thrust face. This service includes Type 4 and Water boxer crankcases. We also stock the full range of over size bearings to suite any of the machine work we do.
Crankcase aline bore on Type1 and 2 cases £79.99 and Type 4 cases £100.

Cylinder Head Milling

We are able to mill aircooled cylinder heads for larger bore sizes.
£75 to machine a pair of cylinderheads.

Crankcase Milling

We can mill aircooled crankcases to accept larger barrels.
T1 and T2 cases £120.

Cylinder Head Skiming

We can skim water cooled cylinder heads by flycutting. This is essential when rebuilding cylinder heads for a perfectly flat sealing face.
Water cooled cylinderhead fly cutting £50.

Cylinder Block Boring

We bore cylinder blocks for over size pistons.
4 cylinder block re-boring and finish honing £120.

Vapour Blasting

We can now offer a Vapour Blasting service.

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