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Triumph Dolomite Sprint Engine

2 engine build options:

Dolly_FOS9.jpg 
Club Race/Rally Engine

1 X DCOE inlet manifold..........£322.50
1 X Pair of 45 DCOE Weber carbs..........£650.00
1 X Throttle linkage for above (twin cable)..........£82.50
1 X Distributor modification …….£250
1 X Machining services – crank, bore, hone, balance etc……..£210
1 X Standard piston set…….£268
1 X Engine set of bolts, bearings, gaskets and sundries…….£350
1 X Cylinder head modifications – (up rated seats and guides)………...£750
1 X Camshaft 300 degree..........£150 – re profiled
1 X Up rated oil pump……..£190
1 X Modified sump……£250
1 X Up rated water pump…….£210
Building and assembly..........£2450                     (Donor engine to be supplied)
Dyno run in and calibration…….£750 

The donor engine would be stripped, cleaned, bead blasted and de-burred. The block and head are then machined as required. Rotating parts are balanced, bolts changed where necessary. All plugs are replaced and retained, galleries are modified. The engine is re-built to a race tolerance specification.  A Power output would be around the 185 BHP mark @ the flywheel, with a flat torque curve @ 150 - 160 lbs/ft.(rpm band 2500 - 7800)






Race Engine

1 X DCOE inlet manifold..........£322.50
1 X Pair of 48 DCOE Weber carbs..........£650.00
1 X Throttle linkage for above (twin cable)..........£82.50
1 X Distributor modification …….£250
1 X Machining services – bore, hone, balance etc……..£410
1 X Extra machining services, block girdle, wells rings, oil feed and drain back.......£500
1 X Camshaft Group 2...........£525     (billet)
1 X Valve spring/ cap kit..........£276.55
1 X Cam follower and shim kit..........£355
1 X Group 1/2 valve set........£320
1 X Modified cylinder head, bronze guides, polished/ported, up rated seats...….£1950
1 X High compression forged piston set.........£630.00
1 X Steel crankshaft and con rod set……..£2400 
1 X Engine set of bolts, bearings, gaskets and sundries…….£550
1 X Up rated oil pump……..£190
1 X Modified sump……£550
1 X Up rated water pump…….£210
Building and assembly..........£2950                     (Donor engine to be supplied)
Dyno run in and calibration…….£750 


The donor engine would be stripped, cleaned, bead blasted and de-burred. The block and head are then machined as required. Rotating parts are balanced, bolts changed where necessary. All plugs are replaced and retained, galleries are modified. The engine is re-built to a race tolerance specification.  A Power output would be around the 220/230 BHP mark @ the flywheel, with a flat torquecurve @ 175 - 180 lbs/ft.(rpm band 3000 - 9000) 

Options: 
Tubular exhaust manifold..........£628.88 – will have to be made to fit car.
7.25" steel flywheel with ring gear..........£374.50
7.25" Quarter Master clutch twin plate race unit ..........£543.05

Dollyengine7.jpg
Race flywheel to suit 7.25 clutch
Dollyengine5.jpg
Race crank and race rods
Dollyengine3.jpg
Race cam and valves

Contact us on Tel: 01527 521299
or
Email: sales@retro-engineering.co.uk                

Last updated 04/01/18