1.c Norton SOHC Head and Barrel

1.c Norton SOHC Head and Barrel

Norton SOHC Head and Barrel parts, including valvegear and pistons


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31 - 60 of 75 results

500cc SOHC 11/32" Stem Inlet Valves (Sized - 1.855" Head, 3 length types available)

Product no.: 0033e/f/g A11/142I

- High quality inlet valves manufactured by G & S Valves - This valve is in a larger head size - 1.855". Probably the largest diameter head inlet valve fitted to SOHC Norton engines, this head would normally only be fitted to racing engines (I think I have one of these fitted in one of my racing methanol heads. Standard Model 30\40 stem diameter : 11/32" - Stem length: 4.650".

 

£51.00 *
In stock

500cc SOHC 5/16" Stem In/Ex Valves - 1.750" / 1.790" - 4 Variants - Late 30M SOHC/DOHC (Manx)

Product no.: 0034 A11/142B

- High quality inlet (or Exhaust) valves manufactured by G & S Valves for later SOHC heads fitted with 5/16" stem valves. - Following Head Sizes available (check your original) : 1.750 and 1.790". Valve stem diameter : 5/16" valves were sometime fitted to late SOHC Manx engines and early DOHC engines.

from £51.00 *
In stock

500cc SOHC 3/8" Stem Exhaust Valves (Blank Stem) - For Model 30 (International)

Product no.: 0037a A11/143A

- High quality exhaust valves manufactured by G & S Valves. - Following Head Sizes available (check your original) : 1.735" and 1.750". Standard Model 30/40 stem diameter : 3/8". Stem length: 4.875".

£51.00 *
Not in stock

500cc SOHC 3/8" Stem Exhaust Valves (Sized - 4.590" Length, 1.735\750" Head)

Product no.: 0037b A11/143B

- High quality exhaust valves manufactured by G & S Valves - Following Head Sizes available (check your original) : 1.735" or 1.750". Standard Model 30\40 stem diameter : 3/8" - Stem length: 4.590".

£51.00 *
Not in stock

500cc SOHC 3/8" Stem Exhaust Valves (Sized - 4.650" Length, 1.735\750" Head)

Product no.: 0037c A11/143C

- High quality exhaust valves manufactured by G & S Valves - Following Head Sizes available (check your original) : 1.735" or 1.750". Standard Model 30\40 stem diameter : 3/8" - Stem length: 4.650".

£51.00 *
In stock

350cc SOHC 11/32" Stem Inlet Valves (Blank Stem) - For Model 40 (International)

Product no.: 0039a A10/142a

- High quality inlet valves manufactured by G & S Valves - Following Head Sizes available (check your original) : 1.635" - standard Model 30/40 stem diameter : 11/32" - Stem length: 4.875".

£51.00 *
In stock

350cc SOHC 11/32" Stem Inlet Valves (Sized - 4.590" Length, 1.635\655" Head)

Product no.: 0039b A10/142b

- High quality inlet valves manufactured by G & S Valves - Following Head Sizes available (check your original) : 1.635" or 1.655". Standard Model 30\40 stem diameter : 11/32" - Stem length: 4.590".

£51.00 *
In stock

350cc SOHC 3/8" Stem Exhaust Valves (Blank Stem) - For Model 40 (International)

Product no.: 0039c A10/143B

- High quality exhaust valves manufactured by G & S Valves - Head Size : 1.655". Standard Model 30/40 stem diameter : 3/8". - Stem length: 4.875".

 

£51.00 *
Not in stock

350cc SOHC 3/8" Stem Exhaust Valves (Sized - 4.590" Length, 1.635\655" Head)

Product no.: 0039d A10/143b

- High quality exhaust valves manufactured by G & S Valves - Following Head Sizes available (check your original) : 1.635" or 1.655". Standard Model 30\40 stem diameter : 3/8" - Stem length: 4.590".

£51.00 *

SOHC Hairpin Valve Spring Top Cup and Collet - Inlet Valve (11/32") - Pair

Product no.: 0278 A11/147I

CNC Machined top cup, to take tapered collets, to fit all SOHC engines. Note: These top cups are sold complete with a matching set of collets (pair) to fit a 11/32" inlet valve. Although these are made using the original taper, I have found many pattern collets have slight variations and do not seat properly. Therefore these top cups have been machined with exactly the same taper as the collets and are sold as a matching pair.

£21.00 *
In stock

SOHC Valve Spring Top Cup and Collet - Exhaust Valve (3/8") - Pair

Product no.: 0279 A11/147E
CNC Machined top cup, to take tapered collets, to fit all SOHC engines. Note: These top cups are sold complete with a matching set of collets (pair) to fit a 3/8" Exhaust valve. Although these are made using the original taper, I have found many pattern collets have slight variations and do not seat properly. Therefore these top cups have been machined with exactly the same taper as the collets and are sold as a matching pair.
£21.00 *
In stock

SOHC Valve Spring Top Cup and Collet - Late Manx Valve (5/16") - Pair

Product no.: 0280 A11/147M
CNC Machined top cup, to take tapered collets, to fit all SOHC engines. Note: These top cups are sold complete with a matching set of collets (pair) to fit a 5/16 Manx Inlet or Exhaust valve. Although these are made using the original taper, I have found many pattern collets have slight variations and do not seat properly. Therefore these top cups have been machined with exactly the same taper as the collets and are sold as a matching pair.
£21.00 *
In stock

SOHC Valve Spring Top Cup Plate

Product no.: 0284 A11/725

CNC Machined top cup plate, with distinctive ears, which retain the hairpin valve springs on SOHC engines. These valve spring retainers fit all top cup plates (sold seperately) and are CNC milled from solid - so wear less than the original Norton items.  See detail listing for more information. Price is each. 

£26.00 *
In stock

SOHC 11/32 Inlet Valve Collets - For Model 30/30M - Pair (to fit one valve)

Product no.: 0040 A11/150
- Valve collets to fit 11/32" diameter valves (as shown above) - collets come as a matched pair. - They come still joined, so they cannot be mistakenly mixed. When you receive them, just break them apart with a screwdriver and carefully file the small section that joined them.
£8.40 *

SOHC 5/16 Valve Collets - For SOHC/DOHC Manx - Pair (to fit one valve)

Product no.: 0040b A11/150M
- Valve collets to fit 5/16" diameter valves (as shown above), as fitted to late SOHC and early DOHC Manx Nortons - collets come as a matched pair, state which diameter required
£8.40 *

SOHC 3/8 Exhaust Valve Collets - For Model 30/30M - Pair (to fit one valve)

Product no.: 0041 A11/151
- Valve collets to fit 3/8" diameter valves (as shown above) - collets come as a matched pair, state which diameter required
£8.50 *
In stock

Norton SOHC/DOHC Hairpin Valve Spring Tongues - Original Norton Pattern

Product no.: 0877 HairTong1

These are heavyweight UK manufactured hairpin valve spring tongues, an essential for fitting hairpin valve springs to both SOHC and DOHC Norton singles fitted with hairpin valve spring heads.  These are handmade by a UK blacksmith to the original Norton pattern

£165.00 *
In stock

1920's-1931 All Models - Crankcase 'Clack Valve' Breather Spring - Each

Product no.: 1112 BrthSpring1

This item is for a spare spring - of the type that were fitted into the distinctive 'Clack Valve' breathers in 1920's OHV and Walter Moore CS1 breathers - an original dismantled clack valve (shown in photo) providing the spring pattern.  We will shortly be manufacturing the complete breather/clack valve unit.  See listing for more information.  Price is per spring

£3.50 *
In stock

1924 - 1929: OHV (and Pre 1929 Walter Moore CS1) Coil Valve Springs - Set of 4 Springs

Product no.: 1135 1074/5

High quality (UK manufactured) coil valve springs to fit the first Norton OHV models manufactured 1924 - circa 1929, and also the first Walter Moore CS1 models 1927 - circa 1928.  These models identifiable by having a smaller and more deeply conical type top spring cup than the type that followed in 1929.  See detail listing for more information.  Price is for a set of 4 springs (i.e. enough for one engine)

£44.00 *
In stock

1928-1931 Conical Type OHV/Walter Moore CS1/First Arthur Carroll CS1 - Valve Spring Cups (Pair)

Product no.: 1029 4060/1

This item is for a pair of the distinctive 'conical' shaped valve spring cups, of the type that were fitted on OHV and Walter Moore CS1 Norton engines through from approximately 1928 up to 1931.  CNC machined from an original pattern, including radial holes - these are designed to fit the early spring type (which we can also supply).  Sold as matching top and bottom cup - see listing for more information  

£49.00 *
In stock

Late 1920's 350/500 OHV, Walter Moore CS1, Pre-33 CS1 Coil Valve Springs - Set of 4 Springs

Product no.: 0966 4058/9

High quality (UK manufactured) coil valve springs to fit 1920's OHV models up to 1933, early (Walter Moore) type CS1 models and the first Arthur Carrol SOHC CS1 engines up to 1932/33 - see detail listing for more information and if your machine requires this type of spring.  Price is for a set of 4 springs (i.e. enough for one engine)

£44.00 *
In stock

Late 1920's 596cc OHV Coil Valve Springs (i.e. Terry's VS110 type) - Set of 4 Springs

Product no.: 0967 5126/27

High quality (UK manufactured) coil valve springs to fit the late 1920's - 1936/7 Norton CS1 and OHV single cylinder models (longer length than later coil springs -see detail listing for more information.  Price is for a set of 4 springs (i.e. enough for one engine)

£44.00 *
In stock

1930's CS1/OHV (1933 - 47) Coil Valve Springs - Set of 4 Springs (see listing)

Product no.: 0889 4058/9

High quality (UK manufactured) coil valve springs to fit both OHV and CS1 (i.e. non hairpin SOHC) models from 1933 to 1947 single cylinder models (longer length than later coil springs -see detail listing for more information.  Price is for a set of 4 springs (i.e. enough for one engine)

£43.00 *
In stock

OHV (1948 - 1959 Type) Coil Valve Springs - Set of 4 Springs

Product no.: 0677 A3/145+6

High quality (UK manufactured) coil valve springs to fit all Norton OHV single cylinder models (ES2, Model 18, Model 19, Model 50) from 1948 - 1959.  The 1948 onwards engine is one of the most popular, but employed a different spring and cups to the OHV earlier engines, these are the correct type springs - see detail listing for more information on spring types.  Price is for a set of 4 springs (i.e. enough for one engine)

£44.00 *
In stock

OHV (ES2, Mod 18, Mod19) and (Part) CS1 Valve Guide - Phosphor Bronze

Product no.: 0676 A3/140

- Phospher bronze valve guide to fit Norton OHV engines - ES2, Model 18, Model 19, Model 50 etc.  May also fit Exhaust for 1930's CS1 - please check for this model. Price is Each

 

£18.00 *
In stock

Early Mod 30 & 40 / CS1 & CJ / ES2 & Mod 18 Coil Valve Spring Bottom Cup - Each

Product no.: 0672 3079

- Coil Valve Spring Bottom Cup to fit early SOHC (coil spring variant) Model 30/40 International, CS1/CJ as well as all Norton OHV models

£13.50 *
In stock

Early Mod 30 & 40 / CS1 & CJ / Pre 48 OHV ES2 & Mod 18 Coil Valve Spring Top Cup - Each

Product no.: 0673 3078

- Coil Valve Spring Top Cup to fit early SOHC (coil spring variant) Model 30/40 International, CS1/CJ as well as pre-1948 Norton OHV models

£14.00 *
In stock

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

£14.00 *
In stock

OHV Norton ES2 and Model 18 Inlet or Exhaust Valve (& 1920s CS1/OHV)

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.  Also commonly fitted to Walter Moore CS1 and early OHV models.  See listing for more detail.  Price is per valve

£42.00 *
In stock

SV Norton - 500cc 16H Inlet or Exhaust Valve

Product no.: 0800 A2/141

- Highest quality inlet or exhaust valve manufactured by G & S Valves - to fit Norton SV (Side Valve) 16H 50cc engines. See listing for more detail of Big4 596cc valves). Price is per valve

£44.00 *
In stock
*
Recommended Retail Price, plus delivery
31 - 60 of 75 results