Twin Spark Engine Parts

Alfaholics Twin Spark Engines

Alfaholics Twin Spark Engines

Alfaholics can rebuild and tune 2.0 Twin Spark engines for trackday or race usage. Engines can be built as either complete first series 75 engines, or with the option to have a second series (cleaner looking) 155 head. Whether you want injection or carburettors, distributor or mapped ignition we have a solution for your needs! Performance options ranging from 190-220BHP. Please e-mail or call Max @ Alfaholics for details on specification & options. Latest development for 2010 with 155 Twinspark Head. For this customer we needed to build an engine running with only 4 plugs and single distributor to meet his race regulation (more)

Please not that we are not able to supply donor engines so you will need to provide a rebuildable core engine. Prices from £10995 exc VAT -bare engine

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Alfaholics GTAm Twin Spark Cam Cover

Alfaholics GTAm Twin Spark Cam Cover

£1195.00 GBP (ex vat)

Manufactured exclusively for Alfaholics, this cam cover gives a stunning GTAm look to the twin spark engine. CAD drawn and CNC precision machined from a solid billet of aircraft-grade aluminium, the quality is amazing – it has to be seen to be fully appreciated! It can be supplied hard anodised either grey or dark red, or alternatively in a polished aluminium finish. By computer designing this cam cover, we have been able to improve on two particularly poor features of the original GTAm and standard twin spark cam covers. Firstly, we have replaced the often leaky GTA breather filler cap […]

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Alfaholics Engine Breather

Alfaholics Engine Breather

£175.00 GBP (ex vat)

Completed CNC machined from billet aircraft grade aluminium and anodized. Designed to bolt to either the front or rear 2 bolt flange on the exhaust cam side of all 75 and 164 TS heads. This is the same part as we use in our billet cam cover kits to give a neat and high quality breather take off without having to run a breather pipe right round from the inlet side on a standard cam cover. This unit features a fully rotating outlet with rubber o-rings to seal the 2 components and a CNC machined offset trap door in the neck to minimise oil consumption.

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Alfaholics Performance Camshafts – 8v Twin Spark

Alfaholics Performance Camshafts – 8v Twin Spark

£650.00 GBP (ex vat)

We have developed our own range of camshafts using the very latest computer modelling. We have a range of 2 profiles to choose from depending on your application – ranging from road through to full race use. These cams give better power, torque and driveability than C&B cams and are machined from solid steel billet and rifle drilled for weight saving. Please call for information.

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Twinspark 46mm Race Inlet Valve

Twinspark 46mm Race Inlet Valve

£50.00 GBP (ex vat)

Extreme high quality Alfaholics production. For use on all Twinspark engines for maximum flow rates, 45 degree seat.

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Alfaholics Race Valve Spring Retainer – Steel

Alfaholics Race Valve Spring Retainer – Steel

£15.00 GBP (ex vat)

Extreme high quality Alfaholics production. For use with all Alfaholics 8mm stem race valves.

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Alfaholics Race Valve Spring Retainer – Titanium

Alfaholics Race Valve Spring Retainer – Titanium

£25.00 GBP (ex vat)

Extreme high quality Alfaholics production, very lightweight – the ultimate spring retainer! For use with all Alfaholics 8mm stem race valves.

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Alfaholics Race Valve Collet

Alfaholics Race Valve Collet

£2.20 GBP (ex vat)

Extreme high quality Alfaholics production. For use with all Alfaholics 8mm stem race valves. 2 required per valve.

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Twin Spark Inlet Valve

Twin Spark Inlet Valve

£19.95 GBP (ex vat)

Standard Twinspark inlet valve.

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Twin spark Exhaust Valve

Twin spark Exhaust Valve

£19.95 GBP (ex vat)

Standard Twinspark exhaust valve.

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Twin spark Inlet Valve Guide

Twin spark Inlet Valve Guide

£38.00 GBP (ex vat)

Original Alfa guide

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Twin spark Valve Guide Seal – Goetze

Twin spark Valve Guide Seal – Goetze

£15.60 GBP (ex vat)

Valve stem seal to suit the 8mm diameter vavle stems. Price is per seal.

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Alfaholics DLC Coated Cam Follower

Alfaholics DLC Coated Cam Follower

£29.95 GBP (ex vat)

Premium race quality cam follower with special F1 technology DLC anti-friction coating. Over the past few years we have seen a general reduction in quality of the Alfa cam followers, this has triggered us to produce this ultimate quality item. The ultimate solution for all serious racers.

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Kent Racing Valve Springs

Kent Racing Valve Springs

£120.00 GBP (ex vat)

Carefully selected by Alfaholics as the optimum valve spring for all performance and race Alfa twin-cam engines, tested by Alfaholics to over 9000rpm!

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Top Timing Chain – Twinspark

Top Timing Chain – Twinspark

£65.00 GBP (ex vat)

This high quality IWIS chain manufactured using the best quality materials will improve life and reduce stretch resulting in more accurate cam timing over a longer period of use; ideal for all competition Twinspark engines.

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Twin spark Exhaust Manifold Gasket

Twin spark Exhaust Manifold Gasket

£3.95 GBP (ex vat)

Exhaust head to manifold gasket for Twinspark engines.

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Twin Spark Inlet Manifold Gasket

Twin Spark Inlet Manifold Gasket

£13.50 GBP (ex vat)

Inlet manifold gasket to suit our Twinspark inlet manifold.

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Spesso Racing Head Gasket Twinspark

Spesso Racing Head Gasket Twinspark

£135.00 GBP (ex vat)

Top quality Spesso Racing head gasket to suit Twinspark engines. Avoid failure, fit the best!

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Twin Spark Full Gasket Set – No HG

Twin Spark Full Gasket Set – No HG

£60.00 GBP (ex vat)

Premium quality full gasket set with seals but without head gasket

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Twin Spark Head Overhaul Set

Twin Spark Head Overhaul Set

£38.00 GBP (ex vat)

Premium quality overhaul set, without head gasket

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Alfaholics Stainless Steel Sports Exhaust for Twin Spark Conversions

Alfaholics Stainless Steel Sports Exhaust for Twin Spark Conversions

£865.00 GBP (ex vat)

Superb quality, unrivalled on the market! Primary & secondary lengths and bores optimised on the dyno. With this system fitted the engine will rev much freer with higher rev capability and in the region of 10BHP increase at max power and 8lb/ft torque. We have back to back tested this system with the CSC mild steel system and found our system has a 15BHP advantage @ 4,500 rpm! To suit all 105 models with hydraulically operated clutch, both LHD and RHD, hanging or standing pedals. Conversion for mechanically operated clutch cars reasonably simple. 3 different link pipes to suit the […]

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Alfaholics Stainless Steel Under Axle Conversion for GT/Giulia

Alfaholics Stainless Steel Under Axle Conversion for GT/Giulia

£395.00 GBP (ex vat)

Race under axle conversion for our stainless steel sports exhaust. Suitable for all cars running very low rear ride height and required for cars running a Watts link or Panhard conversion. Features shorter rear exit to suit de-bumpered cars. Straight through race silencers ensure maximum performance whilst being quiet enough to pass noise tests well under 99dB. Requires shortening of axle straps. Can be retro fitted to cars fitted with our stainless steel exhaust for £330, or available as a £20 upgrade on full Alfaholics system price – please specify when ordering.

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Forged Lightweight Twin Spark Pistons

Forged Lightweight Twin Spark Pistons

£225.00 GBP (ex vat)

Beautiful quality with special anti-friction coated skirt, exclusive to Alfaholics. 84.6mm. These pistons are of the very highest quality of design and manufacture and are extremely lightweight. Piston mass reduction is critical to reducing conrod loadings which is very important in these 2.0 Alfa engines which have a long stroke. We can have these made to any diameter if required. Come complete with gudgeon pins, circlips and piston rings. Pistons pocketed to allow use of the latest profile Alfaholics race cams.

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Alfaholics Twinspark Race Conrods

Alfaholics Twinspark Race Conrods

£235.00 GBP (ex vat)

Manufactured exclusively for Alfaholics to our own specification, recommended for use on Twinspark engines that regularly use over 7,000rpm. These rods are simply the highest quality parts available on the market, fit the best! These rods feature an I-beam section, which makes them lighter than the typical H-beam design whilst being just as strong. We have manufactured these rods to 2.0 Nord 157mm length as being slightly longer makes the application of the piston force to the crank more efficient. Compatible for use with our own forged twinspark pistons and most other aftermarket pistons.

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King XP Racing Series Main Bearings

King XP Racing Series Main Bearings

£140.00 GBP (ex vat)

Excellent quality tri-metal race bearings with a significantly harder surface finish than normal bearings. A must for all high quality performance engine builds. 1300-2000

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King XP Racing Series Con Rod Bearings

King XP Racing Series Con Rod Bearings

£69.95 GBP (ex vat)

Excellent quality tri-metal race bearings with a significantly harder surface finish than normal bearings. A must for all high quality performance engine builds. 1600-2000

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Alfaholics Long Stroke Crank For 2000 Nord & Twin Spark

Alfaholics Long Stroke Crank For 2000 Nord & Twin Spark

£2750.00 GBP (ex vat)

New Alfaholics production. In designing this crank, we started from scratch using current knowledge and CAD to produce the optimum crank for the Alfa 2000 Nord and Twin Spark engine. It features a special oil gallery design that improves flow to the bearings at high revs and has the webs shaped for optimum counterweighting to the piston & rod at high revs, something which is not very good with the original Alfa crank. Furthermore, the big ends are specially bored hollow to further reduce centrifugal weight. We stretched the stroke to the maximum possible, whilst ensuring that the crank fits the block without […]

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Twinspark Head Stud – M12

Twinspark Head Stud – M12

£16.95 GBP (ex vat)

Manufactured exclusively for Alfaholics to our own specification, recommended for use on For all 75/155 narrow angle head 8v engines. Race quality Alfaholics production. Manufactured from superior race grade material, with beautiful quality rolled threads and very accurate tolerancing. (Please note that it is the terrible quality of other productions on the market, with cut threads and poor tolerances, that have pushed us to make these wonderful quality studs).

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M12 Head Nut

M12 Head Nut

£19.95 GBP (ex vat)

For all late 1600, 1750 and 2000 engines. Race quality Alfaholics production. Manufactured from superior race grade material with very accurate tolerancing. (Please note that it is the terrible quality of other productions on the market, with poor tolerances, that have pushed us to make these wonderful quality nuts).

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M12 Washer For Head Nut

M12 Washer For Head Nut

£1.99 GBP (ex vat)

For all late 1600, 1750 and 2000 engines. Race quality Alfaholics production. Manufactured from superior race grade material with very accurate tolerancing. (Please note that it is the terrible quality of other productions on the market, with poor tolerances, that have pushed us to make these wonderful quality washers).

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Alfaholics Twinspark Billet Inlet Manifold & Throttle Body Kit

Alfaholics Twinspark Billet Inlet Manifold & Throttle Body Kit

£2300.00 GBP (ex vat)

New Alfaholics production, developed for our new Alfaholics GTA-R 290! The inlet manifold has been CNC machined from billet aircraft grade aluminium and anodized. This manufacturing process has allowed us to be able to reduce material thicknesses resulting in significant weight saving over a traditional cast inlet manifold, whilst simultaneously giving an amazing appearance and surface finish. The individual throttle bodies are bespoke, and feature carbon fibre trumpets and a billet CNC machined fuel rail. This full assembly represents an amazing 1.5KG weight saving over an equivalent cast manifold with traditional throttle bodies. The inlet manifold features 2 heater […]

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Alfaholics Full 3-D Mapped Ignition System for Twin Spark

Alfaholics Full 3-D Mapped Ignition System for Twin Spark

£795.00 GBP (ex vat)

Convert away from original twin distributor or avoid expensive GTA 8-point distributor conversion with this superb mapped ignition kit. This is a full 3-D setup which allows ignition advance to not only be endlessly variable dependant on engine revs, but also with regard to throttle position. As a result the ignition timing can be refined far beyond the wildest dreams of a distributored engine! This results in a far smoother power curve and far greater ability to iron out flat spots. As a result, far more wild ‘race type’ cam profiles can be used on road/trackday engines, than could normally, […]

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8v Twin Spark Inlet Manifold

8v Twin Spark Inlet Manifold

£325.00 GBP (ex vat)

Convert your 8v Twin Spark engine to run on carburettors or throttle bodies with this superbly manufactured inlet manifold. Comes with water temperature sensor point tapped to take 105 series sensor and heater outlets tapped. Casting also includes pick up point for carburettor throttle quadrant. As used on Max’s GTA Replica.

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Alfaholics 155 Carburettor/Throttle Body Inlet manifold

Alfaholics 155 Carburettor/Throttle Body Inlet manifold

£595.00 GBP (ex vat)

High quality aluminium cast manifold for fitting twin 45mm carbs or throttle bodies on 155 heads.

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Alfaholics GTA-R Fuel Injection Pump Assembly

Alfaholics GTA-R Fuel Injection Pump Assembly

£350.00 GBP (ex vat)

Complete kit of race quality parts for plumbing throttle body fuel injection systems; fuel pump, pump mount, fuel filter and adjustable fuel pressure regulator. This kit can be used in conjunction with our billet Twinspark throttle body assembly, or other aftermarket kits. Each component is fitted with -6 JIC unions to allow the use of race quality screw fit fuel lines. The regulator has a 3rd port for plumbing directly back to the tank as the return line, thus allowing the fuel rail to be single ended to save weight and reduce fuel line plumbing length.

As fitted to all our injected GTA-R builds.

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Alfaholics Twin Spark HT Lead Set

Alfaholics Twin Spark HT Lead Set

£129.00 GBP (ex vat)

Race quality HT Lead set for twinspark engine cars running our Alfaholics 3-D mapped ignition system

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Distributor Blanking Plate Kit -Twinspark

Distributor Blanking Plate Kit -Twinspark

£125.00 GBP (ex vat)

Used when fitting Omex or other mapped ignition system to the 75 Twinspark engine. Kit includes blankers for the top distributor, lower distributor and a replacement for the VVT solenoid.

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Alfaholics Throttle Body Injection System for Twinspark

Alfaholics Throttle Body Injection System for Twinspark

£2300.00 GBP (ex vat)

Following the huge success of our 3-D mapped ignition system, we have introduced this new system for full fuel injection control. It uses a pair of high quality throttle bodies combined with air temperature, coolant temperature, throttle position and exhaust lambda sensors to control both fuelling and ignition.  We have carefully selected injectors which are rated to 250BHP in a 4 cylinder application to ensure that the injector flow rate is optimised for Twinspark application. Many ‘off the shelf’ injectors are rated to 185BHP which is inadequate, whilst the common ‘next size up’ injector is rated to over 300BHP, which causes poor […]

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Alfaholics Twinspark Programmable Distributor

Alfaholics Twinspark Programmable Distributor

£1895.00 GBP (ex vat)

Exclusive Alfaholics production, CNC machined housing mounted with 2x USB programmable 123 ignition modules to drive 2 coils. Supplied complete with 8 point cap & rotor. This unit can be used on 75/164 based twinspark conversions to give an authentic GTA look to the ignition system, or can be used on genuine GTAs looking for an improved ignition system but will require the GTA oil pump being converted to a normal (more)

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Alfaholics Thermostat in Housing

Alfaholics Thermostat in Housing

£69.95 GBP (ex vat)

Alfaholics production. CNC machined billet aluminium remote thermostat housing for twinspark conversion 105 Series cars. We have manufactured this system to allow us to source a lower temperature thermostat than using the Alfa sourced item typically available. By running a 74 degree thermostat rather than one typically 10-12 degrees hotter results in a 3BHP increase in back to back tests on the rolling road. The cheapest BHP increase to be found!

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Alfaholics Super Sleeve

Alfaholics Super Sleeve

£0.00 GBP (ex vat)

We have developed this special liner system in order to prevent the notorious head gasket failures usually encountered when running a conventional Autodelta style monosleeve liner. The problems associated with these Autodelta liners are brought about by a reduction in structural stiffness as a consequence of the base of the block having to be machined away extensively to fit this type of sleeve. Traditionally, it had been necessary to use a monosleeve in certain instances, i.e. when running a 1750 block with 84.5mm bore (for 2000 GTAm application) and also in Nord & Twin Spark engines in order to run […]

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