Viper Camshafts

Viper TYPHOON Hydraulic Camshaft

DW270 Viper TYPHOON Hydraulic Camshaft

Ideal for use with a Holley 390, stage 2 heads, Edelbrock or Offenhauser manifold, Rhoads, 1-1/2" headers, 9.75 compression pistons and a Mallory distributor.

Dyno tested on a 3.5L with all the above modifications gave 252bhp @ 6000 rpm.

Installation: use DW550 valve springs & DW520 top caps.

Machine the top off the valve guides (.100") or use shortened hi-flow guides DW125 & DW135.

Use DW400 shims or AZ1005 adjustable pushrods to set lifter preload. All preload setting info supplied with each camshaft.

Typhoon DW270.JPG

DW270 specification   

RPM Range: 2000-6200rpm

Intake lobe centre: 111 degrees ATDC (at top dead centre)

Lobe separation: 111 camshaft degrees

Duration: @ 0.050” lift: 220 degrees (inlet) 220 degrees (exhaust)

Lift: 1.60 Rockers Inlet: 0.480” Exhaust: 0.480”

Cam lobe lift: 0.300" inlet and exhaust

Just the Camshaft

DW270 TYPHOON Hydraulic Camshaft  including Cam Lube & cam bolt.

​​Comp Cams running in oil (BY1590 x 6) and Comp Cams Break-In oil additive (BY159 Extra Zinc) required to protect the camshaft from damage during running in period). Non-compliance will negate the warranty.

Cam Kit (1)

  • DW270 Viper TYPHOON Hydraulic Camshaft with cam lube and bolt

  • Comp Cams Running in oil (x 6)

  • Comp Cams Break-in Oil Additive (x 1)

Typhoon camshaft.jpg
Comp Cams Break-In oil 1qt.jpg
Comp Cams Break-In additive.jpg

Cam Kit (2)

  • DW270 Viper TYPHOON Hydraulic Camshaft with cam lube and bolt

  • Comp Cams Running in oil

  • Comp Cams Break-in Oil Additive

  • Std. Hydraulic tappets/lifters/followers (set of 16) (AZ794-16)

  • Double valve springs (DW550)

  • Double valve spring top caps (DW520)

DW550 double springs.JPG

Cam Kit (3)

  • DW270 Viper TYPHOON Hydraulic Camshaft with cam lube and bolt

  • Comp Cams Running in oil

  • Comp Cams Break-in Oil Additive

  • Double valve springs (DW550)

  • Double valve spring top caps (DW520)

  • Shortened flow guides inlet (x8) (DW125)

  • Shortened flow guides exhaust (x8) (DW135)

  • Valve spring shims (BY6)

  • Std. Hydraulic tappets/lifters/followers (set of 16) (AZ794-16) for rpm less than 5000rpm Please call for alternative lifters in >5000rpm

  • Cloyes “Street True-Roller” set. Cast iron cam gear, Induction heat treated, billet steel crank gear [3 key ways], True-roller chain with .250” rollers. Made in the USA. (BY9-1132)

  • Rocker pillar preload shim kit (DW400)

  • Inlet manifold (valley) gasket Premium

  • Rubber end seals

Other gaskets included e.g. timing cover, water pump. Please give engine type/vehicle model when ordering

Cloyes duplex true  BY91132

Viper CYCLONE Hydraulic Camshaft

Designed for 3.9 Hot-wire Injection engines.

DW252 Viper Cyclone Hydraulic Camshaft

Good for most applications including automatic transmission.

Worth an extra 26 hp over a standard engine.

If the cylinder block and cylinder head faces have not been heavily machined and the valve guides are fitted to the correct length, then this cam should bolt straight in.

Use 3 degrees extra ignition advance and a "cone" style free flowing air cleaner.

In dyno tests, + 26 bhp extra obtained at 5000 rpm with an extra 27 ft lbs of torque at the same rpm.

Viper Cyclone DW252

DW252 specification   

RPM Range: 1800-5200

Idle – 5500 rpm

Intake lobe centre 108 degrees ATDC (After Top Dead Centre)

Lobe separation 108 camshaft degrees

Duration @ 0.050” lift: 206 degrees (inlet) 206 degrees (exhaust)

Cam lobe lift: 0.270” inlet and exhaust

Lift: 1.60 Rockers Inlet: 0.433” Exhaust: 0.433”

Cyclone camshaft.jpg

Delivery: Click HERE for details (takes you a different page) but you do not loose this one

Just the Camshaft

DW252 Viper CYCLONE Hydraulic Camshaft  including Cam Lube & cam bolt

Comp Cams running in oil (BY1590 x 6) and Comp Cams Break-In oil additive (BY159 Extra Zinc) required to protect the camshaft from damage during running in period). Non-compliance will negate the warranty.

Cam Kit (1)

  • DW252 Viper CYCLONE Hydraulic Camshaft  including Cam Lube & cam bolt

  • Comp Cams Running in oil (x 6)

  • Comp Cams Break-in Oil Additive (x 1)

Comp Cams Break-In oil 1qt.jpg
Comp Cams Break-In additive.jpg

Cam Kit (2)

  • DW252 Viper CYCLONE Hydraulic Camshaft  including Cam Lube & cam bolt

  • Comp Cams Running in oil

  • Comp Cams Break-in Oil Additive

  • Std. Hydraulic tappets/lifters/followers (set of 16) (AZ794-16)

Lifters made in USA.JPG

Cam Kit (3)

  • DW252 Viper CYCLONE Hydraulic Camshaft  including Cam Lube & cam bolt

  • Comp Cams Running in oil

  • Comp Cams Break-in Oil Additive

  • Hydraulic tappets/lifters/followers (set of 16) (AZ794-16)

  • Cloyes “Street True-Roller” set. Cast iron cam gear, Induction heat treated, billet steel crank gear [3 key ways], True-roller chain with .250” rollers. Made in the USA. (BY9-1132)

  • Inlet manifold (valley) gasket Premium

  • Rubber end seals

Other gaskets included e.g. timing cover, water pump. Please give engine type/vehicle model when ordering

Cloyes duplex true  BY91132

Cam Kit (4)

  • DW252 Viper CYCLONE Hydraulic Camshaft  including Cam Lube & cam bolt

  • Comp Cams Running in oil

  • Comp Cams Break-in Oil Additive

  • Hydraulic tappets/lifters/followers (set of 16) (AZ794-16)

  • Cloyes “Street True-Roller” set. Cast iron cam gear, Induction heat treated, billet steel crank gear [3 key ways], True-roller chain with .250” rollers. Made in the USA. (BY9-1132)

  • Preload Shim kit (DW400)

  • ​Standard valve springs fitted length 1.59" set of 16 (CX2284)

  • Shim kit (DW400)

  • Inlet manifold (valley) gasket Premium OEM  (LKJ500020G)

  • Rubber end seals (ERR7283)

  • Rocker Cover gaskets Premium (LVC100260G)

Other gaskets included e.g. timing cover, water pump. Please give engine type/vehicle model when ordering

Warranty

Comp Cams running in oil (BY1590 x 6) and Comp Cams Break-In oil additive (BY159 Extra Zinc) required to protect the camshaft from damage during running in period). Non-compliance will negate the warranty.