Winter Project - Intake Valve Upgrade

[Jagdpanzer]

Together with new cams target is around 50 hp.
Dom, are you referring to the Cosworth lifters I recall Sam mentioning a while back. Has anyone seen a spec sheet on these?

[SAM/CH ZR-1]

Phil,

Did you install bigger valve seats?

[Jagdpanzer]

Yes, 42.85mm OD

[XfireZ51]

Originally Posted by Jagdpanzer

Together with new cams target is around 50 hp.
Dom, are you referring to the Cosworth lifters I recall Sam mentioning a while back. Has anyone seen a spec sheet on these?

Not sure if Cosworth or Porsche. I know Sam can fill you in on them. A set of them is circling O'hare right now as I understand it. Significantly lighter I was told.

[SAM/CH ZR-1]

Originally Posted by Jagdpanzer

Together with new cams target is around 50 hp.
Dom, are you referring to the Cosworth lifters I recall Sam mentioning a while back. Has anyone seen a spec sheet on these?

I did send out before to the company a stock LT5 lifter for measuring and checking all components and sizes and if the light lifters match. Also I told them about the weight of all moving parts and the spring pressures. The leight lifters can handle with.