For years we have battled with poor quality highly expensive production lifters for the Viper. Our only choice was to bush the lifter bores and use a smaller diameter Chevrolet performance lifter. This was highly expensive and not practical for 90% of our customers. The only real choice was to use the early production “low bleed lifter”. The aftermarket Sealed Power or Melling lifters proved even less reliable.
For years we have built camshaft profiles and used spring pressures that allowed these lifters to live. Even with smooth cam profiles and less than optimal spring pressures these lifters would bleed down cold and rattle on cold starts, not healthy for an engine. With proper performance spring pressures they would often fail.
For the past year we have worked with several companies on a new lifter design. Our consultant Lyle Larson used his extensive background with Spintron testing and camshaft design to help develop and test this new lifter. These lifters have been proven on the engine dyno and on our own chassis dyno.
This new lifter addresses all the issues we have had with the production lifter. This low bleed lifter features a precision bore with a high performance plunger and bleed plate design. It does not bleed down when the engine is shut off and the hydraulics will withstand performance valve spring pressures. The special needle bearing rollers are designed to track true to the cam lobe creating the least amount of friction and heat. These lifters feature a tie bar that increases valve train stability at high rpm and eliminates the production tie plate.
These lifter sets are currently available for $599.00 per set—suggested retail is $849.00.
DC Performance 310-841-6996