1.c Norton SOHC Head and Barrel

1.c Norton SOHC Head and Barrel

1.c Norton SOHC Head and Barrel
Norton SOHC Head and Barrel parts, including valvegear

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New OHV - ES2 / Mod18 / Mod 19 Valve Coil Spring Top Cup (Post 48 Flat Head Version) - Each

Product no.: 0674 A3/147

- Coil Valve Spring Top Cup to fit 1948 onwards OHV models - Model 18, ES2, Model 19 etc

£12.00 *
In stock

New OHV Norton ES2 and Model 18 Inlet or Exhaust Valve

Product no.: 0678 A3/142

- Highest quality inlet or exhaust valve manufactured by G & S Valves - to fit all Norton OHV Model 18 and ES2 engines.  Price is per valve

£32.00 *
In stock

New Norton OHV/SV (ES2/Mod18/Mod50/Mod19/16H/Big4 etc) Valve Collets - Pair (i.e. to fit one valve)

Product no.: 0675 A2/149

Valve Collets to fit all OHV and SV Norton models - i.e. Norton ES2, Model 18, Model 19, Model 50, Model 55, Norton 16H, Big 4 etc.  Collets are high quality CNC machined in-house.  Sold as a joined pair (i.e. to fit one valve) 

£7.00 *
In stock

SOHC Sleeve Nuts (Head Bolts) For Model 30/30M - Set of 4

Product no.: 0042 A11/156S

- High quality Stainless Steel head bolts for all 500cc Inter and SOHC Manx engines - Set of 4 sleevebolts, slightly cheaper than buying individually

£63.00 *

SOHC Sleeve Nuts (Head Bolts) For Model 30/30M - Each

Product no.: 0043 A11/156

- High quality Stainless Steel Sleeve Bolts (head bolts) for all 500cc Inter and SOHC Manx engines

£16.50 *

SOHC Rocker Box Bolt - Long (front)

Product no.: 0044 A11/108(L)
- High quality Stainless Steel cambox through bolts. Screw into Sleeve Nuts - Fits all SOHC models
£8.50 *

SOHC Rocker Box Bolt - Short (rear)

Product no.: 0045 A11/108(S)
- High quality Stainless Steel cambox through bolts. Screw into Sleeve Nuts - Fits all SOHC models
£6.50 *

SOHC Rocker Box Bolt - Set of 4

Product no.: 0046 A11/108(S&L)
- Set of 4 cambox bolts, both long and short - High quality Stainless Steel
£29.00 *

SOHC Sleeve Bolts And Cambox Bolts - Complete Set

Product no.: 0047 CT002
- Complete set of Sleeve Nuts and cambox bolts, as described above - High quality Stainless Steel
£86.00 *

SOHC Model 40/40M 350cc Crankcase Cylinder Stud Set

Product no.: 0048 A10/2 set
- High Tensile Stainless Steel Cylinder Stud Set for 350cc engines (Set of 4). Note, sometimes 350cc engines are fitted with 500cc studs and different sleeves. Please email for length details if you are unsure which to order
£39.00 *

SOHC Model 30/30M 500cc Crankcase Cylinder Stud

Product no.: 0049 A11/2

- High Tensile Stainless Steel Cylinder Stud for 500cc engine. - Beautiful quality and lightly polished - Note : These are also a replacement for many Model 40 350cc studs - contact me if you require 350cc size to confirm length

£11.00 *

SOHC Model 30/30M 500cc Crankcase Cylinder Stud Set

Product no.: 0050 A11/2 set
- High Tensile Stainless Steel Cylinder Stud Set for 500cc (and some 350cc) engines (set of 4).
£42.00 *

SOHC Model 596/15M 600cc Crankcase Cylinder Stud Set

Product no.: 0051 A15/2 set
- High Tensile Stainless Steel Cylinder Stud Set for 600cc engines (set of 4). The pattern for these was taken from a postwar (1949) Manx 600 engine, but they should also fit the pre-war 596 engines. Footnote: you might not recognize the 'A15' designate, but '15' was the model number allocated to 600 OHC machines . . . it is not listed in any catalogs though!
£44.00 *

SOHC and ES2 Exhaust Pipe Flange Washer

Product no.: 0089 A3/166
- Copper Washer used to seal exhaust pipe where it screws into cylinder head (normally requires replacement each time Union Nut is refitted). Fits both SOHC and pushrod models
£2.80 *

500cc SOHC/ES2 Paper Base Gasket

Product no.: 0274 A11/157
Paper gasket to fit on the base of 500cc barrels. (You will need to check the oil holes line up correctly - as these can vary slightly by year)
£2.00 *

500cc Norton International/SOHC Manx Compression Plate - 0.046"

Product no.: 0275 CompP/01

46 thou thickness Stainless Steel Compression Plate. This really useful item will save you an awful lot of time with a fretsaw and file

£5.00 *

Norton SOHC (and DOHC) Exhaust Nut

Product no.: 0288 A11M/167
Very nice example of the Norton SOHC exhaust nut, with the correct longer thread that differentiates them from the more common ES2 type. They are almost exact copies of the original, of the type fitted to most SOHC models, including both M30\M40 International and SOHC (Gardgengate) Manx's. They are supplied dull plated. To my knowledge they have not been available for many years, and I have just fitted one to the International engine I am building!
£30.00 *

11/32" Model 30\40 Inlet Guide

Product no.: 0301 A11/138

These high quality valve guides are made to the original dimensions of SOHC Norton valve guides - this being the inlet which are bored to take the standard 11/32" diameter inlet valve.  

£20.00 *
In stock

3/8" Model 30\40 Exhaust Guide

Product no.: 0303 A11/138B

These high quality valve guides are made to the original dimensions of SOHC Norton valve guides - with the exhaust guide on SOHC engines a bigger outer diameter, bored to take a 3/8" exhaust valve (the inlet guide is 11/32". The guide includes the important oilway from the cambox feed, which has a small countersunk face to allow for a better tolerence when fitting them. 

£20.00 *
In stock

SOHC Inlet Guide Lubrication Union and Pipe Set

Product no.: 0353 A11/778+9+80 - I
These are the brass unions that screw into the front bevel gear chamber of the SOHC cambox and feed oil to the valve guides, via the small bore copper pipes. The unions are just as per originals (originals were used as patterns), and this means they are 'sided' with the inlet union having a smaller bore than the exhaust union. The copper pipe is supplied soldered into the nipples (and the nipples only bored after this operation is completed, and full bore checked for throughput - as this soldering process often blocks pipe) and is also slightly longer than required, so it can be gently bent and cut to length to suit the engine. They are sold as a complete set per valve, therefore two (2) sets are required per engine. This description is for an Inlet Valve Guide Set
£20.00 *

SOHC Exhaust Guide Lubrication Union and Pipe Set

Product no.: 0354 A11/778+9+80 - E
These are the brass unions that screw into the front bevel gear chamber of the SOHC cambox and feed oil to the valve guides, via the small bore copper pipes. The unions are just as per originals (originals were used as patterns), and this means they are 'sided' with the inlet union having a smaller bore than the exhaust union. The copper pipe is supplied soldered into the nipples (and the nipples only bored after this operation is completed, and full bore checked for throughput - as this soldering process often blocks pipe) and is also slightly longer than required, so it can be gently bent and cut to length to suit the engine. They are sold as a complete set per valve, therefore two (2) sets are required per engine. This item is for an Exhaust Valve Guide set
£20.00 *

Pack of Four - Circlips for Piston Gudgeon Pin

Product no.: 0380 A2/164

These are modern circlips of the same size as fitted to standard Norton pistons - i.e 0.875" gudgeon pins, incase like me you sometimes buy 'New Old Stock' pistons at autojumbles, but the circlips are missing

£2.20 *

500cc CS1/ES2 Piston: 79mm STD - None Slipper Type (Approx 7:1 CR)

Product no.: 0387 C3/160-000

This is a 79mm (500cc) piston to fit Norton 79mm x 100mm Lonstroke singles - from well known piston manufacturer - JP Pistons. These pistons are CNC machined and very well made. 

£185.00 *

500cc CS1/ES2 Piston: 79mm +0.020" - None Slipper Type (Approx 7:1 CR)

Product no.: 0388 C3/160-020

This is a 79mm (500cc) piston to fit Norton 79mm x 100mm Lonstroke singles - from well known piston manufacturer - JP Pistons. These pistons are CNC machined and very well made. 

£185.00 *
In stock

500cc CS1/ES2 Piston: 79mm +0.040" - None Slipper Type (Approx 7:1 CR)

Product no.: 0389 C3/160-040

This is a 79mm (500cc) piston to fit Norton 79mm x 100mm Lonstroke singles - from well known piston manufacturer - JP Pistons. These pistons are CNC machined and very well made. 

£185.00 *
In stock

500cc CS1/ES2 Piston: 79mm +0.060" - None Slipper Type (Approx 7:1 CR)

Product no.: 0390 C3/160-060

This is a 79mm (500cc) piston to fit Norton 79mm x 100mm Lonstroke singles - from well known piston manufacturer - JP Pistons. These pistons are CNC machined and very well made. 

£185.00 *

500cc International Piston: 79.6mm STD - Slipper Type (Approx 9.5:1 CR)

Product no.: 0396 A11/160

This is a 79.6mm (500cc) forged slipper piston to fit Norton International and Longstroke Manx 79 (and 79.6)mm x 100mm Longstroke singles. Manufactured by top performance piston manufacturer - Omega Pistons. 

£235.00 *
In stock
can be shipped within 120 days

500cc International Piston: 79.6mm +0.020" - Slipper Type (Approx 9.5:1 CR)

Product no.: 0397 A11/160

This is a 79.6mm +0.020thou (500cc) forged slipper piston to fit Norton International and Longstroke Manx 79 (and 79.6)mm x 100mm Longstroke singles. Manufactured by top performance piston manufacturer - Omega Pistons  

£235.00 *
In stock
can be shipped within 120 days

500cc Manx Piston: 79.6mm STD - Slipper Type (Approx 9.5:1 CR)

Product no.: 0398 A11M/160

This is a 79.6mm (500cc) forged slipper piston to fit Norton International and Longstroke Manx 79 (and 79.6)mm x 100mm Longstroke singles. Manufactured by top performance piston manufacturer - Omega Pistons 

£235.00 *
In stock
can be shipped within 120 days

500cc Manx Piston: 79.6mm STD 'Alchohol Dome' - Slipper Type (Approx 12:1 CR)

Product no.: 0686 A11M/160A

This is a 79.6mm (500cc) forged slipper piston to fit Norton Racing International and Longstroke Manx 79 (and 79.62)mm x 100mm Longstroke singles - this version is very high compression - meant for alchohol/methanol fuels and competition use only. Manufactured by top performance piston manufacturer - Omega Pistons 

£235.00 *
In stock
can be shipped within 120 days
*
Recommended Retail Price, plus delivery
31 - 60 of 63 results