For Sale: Parts mainly for Speed 25 & 4.3, but some also suitable for other Speed models. All parts are good used condition & serviceable unless otherwise stated. Images available for most items by WhatsApp (preferred) or email. Prices are for collection in person or by your courier from Kingston Upon Thames. Postage at cost.
Set 6 new old stock Sp25 Hepworth pistons 83mm + .5mm Incl. rings & Gudgeon pins. Flat top & compression height 55mm - £200.
Set 6 used pistons 92mm for 4.3 incl. Gudgeon pins & rings. Flat top & compression height 65mm, total length 108mm - £150.
Set 6 used pistons 83mm +.5mm incl. Gudgeon pins & rings removed from Sp25 engine. Shaped higher compression top surface (not flat). 3 compression & 1 oil ring (1 top ring broken but suggest fit set new rings) - £100.
Aluminium engine cooling fan assembly. 4 blade aluminium fan & 6-hole mounting arm. Excellent original condition. Part no.N17007 (Sp20 SC/D?) - £400
Sp25 cylinder head, full height stud design. No cracks or damage evident, all threads good condition. Valve seats appear serviceable with lapping or light cut. Inlet guides minimal wear & serviceable; exhaust guides have more wear & would be better replaced. Unused many years & not pressure tested - £500.
Sp25 engine block. 83mm and may have been resleeved as no wear marks. Unused many years & not pressure tested - £500
Aluminium timing chain covers (fit between crankcase & bellhousing). VGC - £350
Laycock de Normanville 'J' Type overdrive unit complete with front closing plate & rubber cush drive plus mounting bracket. Good working condition & was fitted to Sp20 - £750
New Env crown wheel & pinion. 9/34 teeth (3.77:1) pinion shaft diameter 35mm - £600
Davies Craig 12v electric water pump complete with digital controller (for pump & fan), wiring harness, thermostat & pipe adapters. Little use & good condition - £75
Aluminium conical starting handle guide, bolts to front chassis crossmember. Part no.N16120 - £35
2 rocker shafts with minimal wear. Both believed to be Sp25, 1 with rocker feed holes at approx. 110 degrees (with spring wear marks), the other with feed holes at 180 degrees - this shaft also has an additional feed hole for overhead oil spray? - £300 each.
Sp25 camshaft - £400
Sp25 crankshaft. Main bearings 59.5mm & journals 49.75mm. Would benefit from light re-grind - £500
4.3 camshaft. Some wear on oil pump drive gear & inner 2 bearings show some ridging, otherwise serviceable - £250
Blundell air silencer casting & steel 'cylinder' - £150
Oil pump c/w drive gear, outlet casting & oil pipe end. Part no.N14973 - £250
Pair Sp25 etc headlamp bar ends (bolt to wings) - £50
Complete handbrake lever assembly incl. mounting bracket & operating arm - £250
Propeller shaft. Working length (flange to flange) approx. 34.5" some wear in both U/J's. Flange holes at 2" & 2 3/8". Sp25? - £15
Propeller shaft. Working length approx. 37". Both U/J's appear no wear. Flange holes at 2 7/16" & 2 7/8" - £20
2 of rear hydraulic shock absorbers, Sp20/25? Arm length 8 1/8", need rebuild - £15 each
Brake & clutch pedal ends. Part Nos. N5673 & N5674 - £30 each
2 of rear camshaft bearings. 30mm bore good condition. Believe suitable for Sp20, Firefly & Silver Eagle F & G - £30 each
1 front camshaft bearing c/w end cap & spring etc. Part No. N5539 - £30
6 new old stock gudgeon pins. Length 2 7/8", diameter 22mm with chamfer for pinch bolts - £30
6 Sp25 connecting rods c/w big end bolts & nuts. Part Nos. N14752 (white metalled. but unknown provenance) - £300 set
Engine sump oil level float & sender unit (bolts to sump). Untested - £50
Steering box & shaft. Complete but no drop arm - £500
2 of Sp25 rear road springs. 8 leaves each, 54" eye to eye (unladen) - £50 each collection only
More parts and contact details in the March Calendar.
Set 6 new old stock Sp25 Hepworth pistons 83mm + .5mm Incl. rings & Gudgeon pins. Flat top & compression height 55mm - £200.
Set 6 used pistons 92mm for 4.3 incl. Gudgeon pins & rings. Flat top & compression height 65mm, total length 108mm - £150.
Set 6 used pistons 83mm +.5mm incl. Gudgeon pins & rings removed from Sp25 engine. Shaped higher compression top surface (not flat). 3 compression & 1 oil ring (1 top ring broken but suggest fit set new rings) - £100.
Aluminium engine cooling fan assembly. 4 blade aluminium fan & 6-hole mounting arm. Excellent original condition. Part no.N17007 (Sp20 SC/D?) - £400
Sp25 cylinder head, full height stud design. No cracks or damage evident, all threads good condition. Valve seats appear serviceable with lapping or light cut. Inlet guides minimal wear & serviceable; exhaust guides have more wear & would be better replaced. Unused many years & not pressure tested - £500.
Sp25 engine block. 83mm and may have been resleeved as no wear marks. Unused many years & not pressure tested - £500
Aluminium timing chain covers (fit between crankcase & bellhousing). VGC - £350
Laycock de Normanville 'J' Type overdrive unit complete with front closing plate & rubber cush drive plus mounting bracket. Good working condition & was fitted to Sp20 - £750
New Env crown wheel & pinion. 9/34 teeth (3.77:1) pinion shaft diameter 35mm - £600
Davies Craig 12v electric water pump complete with digital controller (for pump & fan), wiring harness, thermostat & pipe adapters. Little use & good condition - £75
Aluminium conical starting handle guide, bolts to front chassis crossmember. Part no.N16120 - £35
2 rocker shafts with minimal wear. Both believed to be Sp25, 1 with rocker feed holes at approx. 110 degrees (with spring wear marks), the other with feed holes at 180 degrees - this shaft also has an additional feed hole for overhead oil spray? - £300 each.
Sp25 camshaft - £400
Sp25 crankshaft. Main bearings 59.5mm & journals 49.75mm. Would benefit from light re-grind - £500
4.3 camshaft. Some wear on oil pump drive gear & inner 2 bearings show some ridging, otherwise serviceable - £250
Blundell air silencer casting & steel 'cylinder' - £150
Oil pump c/w drive gear, outlet casting & oil pipe end. Part no.N14973 - £250
Pair Sp25 etc headlamp bar ends (bolt to wings) - £50
Complete handbrake lever assembly incl. mounting bracket & operating arm - £250
Propeller shaft. Working length (flange to flange) approx. 34.5" some wear in both U/J's. Flange holes at 2" & 2 3/8". Sp25? - £15
Propeller shaft. Working length approx. 37". Both U/J's appear no wear. Flange holes at 2 7/16" & 2 7/8" - £20
2 of rear hydraulic shock absorbers, Sp20/25? Arm length 8 1/8", need rebuild - £15 each
Brake & clutch pedal ends. Part Nos. N5673 & N5674 - £30 each
2 of rear camshaft bearings. 30mm bore good condition. Believe suitable for Sp20, Firefly & Silver Eagle F & G - £30 each
1 front camshaft bearing c/w end cap & spring etc. Part No. N5539 - £30
6 new old stock gudgeon pins. Length 2 7/8", diameter 22mm with chamfer for pinch bolts - £30
6 Sp25 connecting rods c/w big end bolts & nuts. Part Nos. N14752 (white metalled. but unknown provenance) - £300 set
Engine sump oil level float & sender unit (bolts to sump). Untested - £50
Steering box & shaft. Complete but no drop arm - £500
2 of Sp25 rear road springs. 8 leaves each, 54" eye to eye (unladen) - £50 each collection only
More parts and contact details in the March Calendar.
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