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  • New twin weber 45DCOE carbs £625
  • DCOE alloy inlet 1" long £180
  • DCOE alloy inlet 6" long £200
  • filter kit £90
  • Sandwich plates & rubbers £45
  • linkage kit £95
  • Fuel regulator £38
  • Fuel pump £58
  • 4-2-1 maniflow LCB exhaust manifold £310
  • Distributor to suit (electronic) £215
  • 2 hr test bed run and starter set-up with full diagnostic report (no power figs) £250
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  • Throttle bodys £150
  • Injectors £140 (set)
  • DTA engine management ECU & loom inc base map £910
  • Full engine dyno run & set-up (inc mapping) with power & torque print out £450

 

 

The street sleeper 8v twincam engine is a fantastic conversion designed for massive low down torque, it has been based around modern performance figures with very low maintanence. Strong enough for mild track use. With the correct set up we have seen 120-135 BHP. this engine can be used with the traditional weber carbs and distributor or throttle bodys with full engine management.

 

Welcome to Morspeed performance tuning

 

 8v twincam engine

1293-1380cc 8v TWINCAM STREET SLEEPER

The block is fully prepared to accept the twincam cylinder head, chemically dipped, Off-set bored and plateau honed to a finish size, the centre main cap is machined for a heavy duty 1" steel strap, the block is re-surfaced to ensure a perfect head gasket seal, Then fitted with new VP2 lead copper jackshaft bearings. All threads are checked and re-tapped then after a three stage final build clean the block is painted and fitted with new oilways & core plugs.

Crankshaft is re-ground to its next size, hardened & Balanced, then a final micro polish to the journals is applied along with new VP2 lead copper bearings.

Con-rods are checked for size, balanced end for end and fitted with new ARP bolts and nuts, then a set of 8v pocketed pistons are fitted.

A jackshaft is fitted to drive the high capacity steel backed oil pump along with cam belt drive gears. A modified trigger damper is also used if DTA is required.

Gearbox is completely stripped to a bare casing, and chemically dipped removing all traces of internal oil staining and external paint. The gearbox is then fully prepared ensuring all gasket surfaces are flat and all threads are good. The gearbox is then built with a helical gear set, helical drop gears. new double roller bearing, single roller bearing, needle roller bearings, high grade central oil pick up pipe, tranex X-pin diff unit and final drive. (the final drive ratio will be decided on application).

Transfer gears are reshimmed on the idler and primary to the correct tolerence with new input spigot bearing.

Flywheel assembly is a lightened pre-verto and fitted with new A.P heavy duty bonded clutch plate and AP orange cover then dynamically balanced with the front pulley.

ST3 Fast road cylinder head is fitted which is fully gasflowed polished and ported to accept a pair of weber 45DCOE's or throttle bodys, using STD size back cut valves and 3 angle valve seats to gain maximum air flow. New silicon bronze valve guides with full tapers to also aid air flow. Ports all fully modified with full valve guide boss removal and matched to the manifold. Combustion chambers are then balanced. The head gasket face is then machined to achive the desired compression. On the final stage all the valves are hand lapped and seat pressure is tested and it is cleaned and assembled using the required valve springs, MSPD PH3 camshafts, tappets are set, alloy vernier timing gears, performance cam belt & tensioner.

A competition high grade head gasket is used.

The finished unit is painted in a choice of  red, blue, black or BMC green and assembled using plated external nut and bolts.

 

Fully assembled twincam street sleeper engine £3500.00 exch inc VAT

Fully assembled twincam street sleeper engine £3900.00 outright inc VAT

Engine specificatons: