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8/80 Dry Sump JAP replica engine

Most parts for an 8/80 Dry Sump engine as built by Terry Wright for the Walton JAP. This is similar to the 8/80 JAP engine of 996cc that was originally used by Bruce Walton when he built his car in 1952. Some machining required. Perfect for Morgans or Coopers.

NOW £7250 ex Sydney

GREAT BUY!

Inclusions

Barrel castings, aluminium, unmachined (2)
Noel Street lightweight speedway pattern, with large fins suit 1949 8/80 JAP twin

Crankcase
Castings, three pieces, timing cover only part machined, complete with driveside main bearing housing

Crankshaft, complete (2)
Custom made for TW by S&S complete with JAP mainshafts

Heads, aluminium, machined (2)
Very good improved reproduction, designed and made by John Thease. Suits 8/80 JAP with both forward exhausts, complete with valve seats fitted. 

Pistons c/w pins and rings (2)
Accralite, 2 x 88mm 2 new, 2 used for pattern 

Camshafts,  gears, followers (2)
Ivan Tighe camshafts complete with special profile, lift and dwell, designed and made for TW

Valves, exhaust and inlet (4)
G&S valves custom made for TW with 7mm dia stem 

Valve springs, caps retainers (4)
Porsche Carrera, lightly used, to suit the G&S 7mm valves with retainers and caps.

Rockers boxes, spring covers (2)
Original speedway parts with new castings for covers need machining, some rocker levers

Pushrods (4)
New, ex US, custom, to TW specification

Cam followers (4)
Ex Bill Tuer steel castings unmachined complete with machining jig and fixtures, speedway rollers to buy or make

Oil pump
Ewan Cameron make , new

Drawings and specifications
JAP factory drawings and design details as used by TW in Walton Special

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Near complete original 1949/50 JAP 8/80 dry sump engine JTOSZ/S/50860/1 as used in early Coopers …

SOLD

Click on images to enlarge

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Complete original 1950/1 JAP Mk1 engine JTORZ/W/H76206

SOLD

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Miscellaneous spare parts some sold but ask

Click on images to enlarge

Ring Sets & Pistons

• Ring sets inc oil scraper, set 3 – £50 (Qty: 3)
• Rings standard, set 2 pair – £50 (Qty: 2 pairs)
• Rings +10 thou, set 2 pair – £50 (Qty: 2 pairs)
• Piston bare, side valve JAP part 6204/2, standard, bare – $25 (Qty: 1)
• Cosworth forgings for Greenwood 84S piston plus rings, no pins or clips – $50 (Qty: 3)
• Mahle speedway piston complete in box, +20 thou, new – £100 (Qty: 1)
• CLICK HERE TO ENQUIRE BY EMAIL

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Barrels

• Used 4 stud barrel, 153mm long between faces – £50 (Qty: 1)
• Used 4 stud barrel, 161mm long between faces – £50 (Qty: 1)
• CLICK HERE TO ENQUIRE BY EMAIL

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Valve Components

• Used hairpin valve springs for 2 valves (set 4 springs for one head) – £25 (Qty: 2)
• Used valve spring covers, valve set – £13 each (Qty: 5)
• New valve guides (3 bronze, 3 iron) – £13 each (Qty: 3)
• CLICK HERE TO ENQUIRE BY EMAIL

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Timing Pinions

• New timing pinion standard, -30, -15, -10 – £13 each (Various available)
• Used timing pinions -30, -15, -10, standard – £13 each (Various available)
• SOLD

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Rocker & Camshaft Parts

• Used rocker box castings with cover – £60 each (Qty: 2)
• New camshaft bushes, long – £13 each (Qty: 9)
• New camshaft bushes, short – £13 each (Qty: 6)
• CLICK HERE TO ENQUIRE BY EMAIL