100M PISTONS

These Die Cast pistons are made specially for us by Omega, one of Britain's leading competition piston manufacturers. They have the original 100M dish of 14cc which will give a compression ratio of approximately 8.5:1 providing the cylinder head and block have not been skimmed. Being lighter and having a better design than the original they are not only stronger for performance use but quieter for road cars as well. We have used metric sizes in order to take advantage of the latest ring technology and reduce crank case pressure. They are supplied with gudgeon pins to suit standard clamp conrods (gudgeon pins for fully floating rods available to order) The sizes stated are the actual bore sizes, all clearances have been allowed for on the piston.

FLAT TOP PISTONS

Forged by Omega for maximum strength. These give an approximate compression ratio of 10.5:1 the crown is of sufficient thickness to allow a 6cc dish to be machined in if a slightly lower compression ratio is required. They are supplied with plain gudgeon pins to suit fully floating con rods (gudgeon pins for standard clamp rods available to order)

Price stated is for a full set

CYLINDER LINERS

Good quality cast iron straight plain liners, available in three sizes, all over 8 inches (203mm)long and require shortening after fitting.
Approximate dimensions are,
ENG417B 3.543"od 3.346"id (90.0mm x 85mm)
CENG417 3.562"od 3.374"id (90.47mm x 85.7mm)
CENG417A 3.597"od 3.441"id (91.36mm x 87.4mm)

Prices stated are per item

STEEL CRANKSHAFT

Made from EN40B and Nitride hardened. This steel crankshaft is made with the Works type 8 bolt fixing for the flywheel and is also ground ready for our rear oil seal kit. Requiring no additional machining to fit as it uses the standard main bearings and original 111.1mm stroke. It can only be used with our Steel Con Rod Set CENG432R. For the person who wants the ultimate in performance, these obviously strengthen the bottom end considerably and mean that the engine can be reved safely to very high limits.

Parts: 

Steel Crankshaft 4 Cyl

CENG432K

Price: £1,950.00

75

Quantity:

Big End Set (Std) Steel Crank

CENG419

Price: £28.46

76

Quantity:

STEEL CON ROD SET

These are Carrillo style with conventional fully floating little ends and can therefore only run with pistons that contain circlip grooves (i.e. our pistons CENG 409, CENG 410, CENG 411 &CENG409F). These are considerably lighter and stronger than standard ones.
Two types available, the 100/S fit with the standard 100/4 crank sizes or the others to suit our steel cranks with better quality big end shells.

REAR CRANKSHAFT OIL SEAL CONVERSION KIT

When fitting this kit to the 100 it will require some machining to the crankshaft and cylinder block and therefore can only be fitted during a total engine rebuild. Although full instructions are supplied it is recommended that this kit is fitted by us or a qualified engineer. (A 4.2mm Drill & M5 Tap is also required).
It is worth spending the money as, if fitted correctly, it really does stop those annoying oil leaks.

ALUMINIUM ENGINE BACK PLATE

These are much lighter and stronger than standard and machined to clear our rear crank oil seal kit. Two types available, to suit original 4cyl. mechanical clutch bellhousing or 6cyl. hydraulic clutch bellhousing

LIGHTENED FLYWHEEL (EXCHANGE)

Due to the long stroke characteristics of the 100 engine the flywheel can be lightened substantially with no noticeable loss of torque or detriment to smooth running. This makes the engine more willing to rev quicker and higher with an all round improvement in performance on a standard or fast road car. Supplied to suit original 2 or 3 dowel clutch.

STEEL FLYWHEELS

These are machined from a solid billet to different specifications to suit either a 7.25" twin plate race clutch or the organic clutch with 2 or 3 dowels, also to suit the "works" 8 bolt and standard 4 bolt crank fixing. Both have considerable lightening holes where possible, the one to suit the race clutch also only accepts a thin ring gear.

LIGHTWEIGHT STARTER RING GEAR

We have had these specially made so the flywheel can be lightened even more. 0.375" thick and weighing only 1.1 kgs, they give a 40% weight saving.(Only recommended with our X27 pre-engaged starter).