100/4 Top End

Show:

EXCHANGE CAMSHAFT KITS

In 2003 we totally revised not only the way we sell our camshafts but also the design and manufacturing. We now only sell camshafts packaged complete with followers and cam lube for assembly. There are considerable differences between new and reground cams so the decision should be taken carefully. Reground old units limit the lobe size and position, with this in mind we only accept old units which have not been reground before both on the lobes and journals. Using the original material we heat-treat these to the best limits available.

PROFILES

  • DWR 1 Profile is the only camshaft which will fit without any valve pocket reliefs. This profile is similar to the original 100M cam and so works well in any standard or mildly tuned car. (To exchange your old camshaft for a DWR 1 use ENG457/1 or to buy a DWR 1 without trading in, use ENG457A/1)
  • DWR 2 Profile is high lift with 300 degrees duration (may require valve pockets). This profile is very similar to the original ‘Works’ profile and ideal for race and rally cars.
  • NOW AVAILABLE DWR 4 Profile is our 100/S interpretation with 278 degrees duration, this puts it midway between DWR 1 and DWR 2 Profiles in performance terms, providing good power with very smooth delivery. This 100S profile is equally well suited to the 100/4 - ideal for a Mille Miglia type rally car.

PLEASE NOTE: Prices include followers and cam lube, but not pushrods.

For a Camshaft Profile specification sheet please click the attachment below.

100/4 Top End
Code: SCENG457/4
Sku: SCENG457/4
Availability: In Stock
SCENG457/4
£295.00
Qty
Code: CENG457/2
Sku: CENG457/2
Availability: In Stock
CENG457/2
£295.00
Qty
Code: ENG457/1
Sku: ENG457/1
Availability: In Stock
ENG457/1
£295.00
Qty

Attachments

4-Cylinder Cam Timing Chart_0.pdf 4-Cylinder Cam Timing Chart_0.pdf View Download

MODIFIED CAM FOLLOWER

Our CAM Followers are modified in our machine shop to increase lubrication to the cam lobes and also help the cam follower run lighter as they will not fill with oil.

100/4 Top End
Code: CENG460
Sku: CENG460
Availability: In Stock
CENG460
£10.82
Qty

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.

100/4 Top End
Code: CENG654
Sku: CENG654
Availability: In Stock
CENG654
£18.95
Qty

VERNIER STEEL CAMSHAFT SPROCKET

This light weight Vernier Steel Camshaft Sprocket gives you the advantage of adjusting the camshaft timing accurately with no fear of the timing slipping once set.

100/4 Top End
Code: CENG649V
Sku: CENG649V
Availability: In Stock
CENG649V
£197.50
Qty

COMPETITION ENDLESS TIMING CHAINS

Our Competition Endless Timing Chains are  top quality chains.
CENG648 - For normal road and race engines.
CENG648R - Suited for very aggressive drivers (May whine a little).

100/4 Top End
Code: CENG648
Sku: CENG648
Availability: In Stock
CENG648
£33.79
Qty
Code: CENG648R
Sku: CENG648R
Availability: In Stock
CENG648R
£54.10
Qty

A Little About Us...

Company Info

Welcome to the Denis Welch Motorsport website for Performance Parts. We cater for every aspect of work on your classic car be it road, race or rally, using our unrivalled success in many aspects of Motorsport to make your car as successful and reliable as possible.

Safe Delivery

×

Safe Delivery

UPS Delivery

If purchasing online the UPS carriage calculator will automatically calculate the postage cost. Please be assured that our Parts Team will always double check all postage charges to ensure the most cost effective method of postage is given on the final dispatch.

Secure Payment

×

Secure Payment

HSBC Secured System

We use the latest encryption and enhanced security certificates to secure our site ensuring you can shop safely online. 

Get in Touch

×

Get in Touch

Contact Details

Parts Hotline +44(0)1543 472244
Office +44(0)1543 472214
Fax +44(0)1543 472339
E-Mail sales@bighealey.co.uk
 

×
×
×
×