Viper Stump Puller

Viper STUMP PULLER Hydraulic Camshaft DW268

DW268 specification

RPM Range 1500-5800 rpm

Duration @ .050" In. 213 Ex. 213

Lift-1.60 Rockers In; .465" Ex; .465"

Lobe Sep 110 degrees.

Installation

Heads will need machining.

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

Use shims or adjustable pushrods to set lifter preload.

Please note:

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.

Just the Camshaft

DW268 Viper STUMP PULLER Hydraulic Camshaft including Cam Lube & cam bolt

DW268 Viper STUMP PULLER Hydraulic Camshaft including Cam Lube & cam bolt

Comp Cams running in oil BY1590

Comp Cams Break-In oil additive BY159

Shortened hi-flow guides DW125 (x8) and DW135(x8)

The modified guides have their tops shortened for a higher lift cam and
have their noses modified for better gas flow.