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Austin DS5 Dished Top Pistons - 14CC

Our Die Cast Pistons are made specially for us by Omega, Britain's leading competition piston manufacturer. They have a 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 are also quieter for road use. 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 are available to order).

The sizes stated are the actual bore sizes, all clearances have been allowed for on the piston.

Please note that these are supplied as a set of 4. You will need 1 1/2 sets for your Jensen. 
Please contact us after purchasing online so that we can amend your order.

Jensen Steel Rocker Pedestal & Spacer Kit

These are much stronger than the standard aluminium ones and stop the rocker shaft from flexing and fretting. The spacers hold the rockers firm, stopping them from moving up and down the shaft.

Austin DS5 - FLAT TOP PISTONS

Forged by Omega for maximum strength. These give an approximate compression ratio of 9.5:1. If using a Head with the original 70CC volume.

They are supplied with plain Gudgeon Pins to suit fully floating con rods. Gudgeon Pins for standard clamp rods are available to order.

Please note that these are supplied as a set of 4. You will need 1 1/2 sets for your Jensen.
Please contact us after purchasing online so that we can amend your order.

LIGHTENED CRANKSHAFT SPROCKET

The original Crankshaft Sprocket is made of soft cast iron, our is made to our own specification from steel billet and heat treated to within close limits, for long life and weight saving.

TAPPET ADJUSTER SCREW

We have reproduced the Tappet Adjuster Screw to the original design with increased high quality 3/8"BSF thread.

LIP SEAL FRONT COVER

'NEW Design that improves the original'

Our new 100/4 Lip Seal Cover is another product from Denis Welch Motorsport that has been taken back to the drawing board and improved in a new form.

For many years we have had to modify original front covers by sourcing or using customers existing parts. By cutting out the felt seal housing and using a special jig, weld in a new housing for a modern lip seal.

Following a complete redesign and using our new tooling based on the original works drawings, we are now making new cover with superb quality engineering. Our new Timing Cover is now better than the original, with the advantage of a seal that actually keeps the oil inside the engine, where it belongs!

We also have 100/4 Lip Seal Cover with a removable inspection plate to change the cam timing if used with our vernier cam sprocket.

METAL FLEXI-HOSE

Replacement for original copper pipe which runs between the oil pump and the block.

The originals are susceptible to metal fatigue resulting in loss of oil pressure and major engine damage.

Change it now!

STEEL CAM THRUST PLATE

Our Steel CAM Thrust Plate is much stronger than the original bronze type and is a direct replacement. This will wear much better and not break.

JENSEN COMPETITION ENDLESS TIMING CHAINS

Our Competition Endless Timing Chains are  top quality chains.
CENG648 - For normal road and race engines.
 

JENSEN Push Rod

Push Rod - standard