webcam 277

[bedjo78]

I am in progress building race engine only. 86 x 94
Case CB aluminum.
Rods 5.7 inch
pauter pro heads 52 X 40
JE piston with total seal
Webcam 277
CB light lifter
Ratio rocker pro 1,6 : 1
Carb would be jaycee 52 or 58

Accidently I received heads with 1.6 rocker instead 1.5.
With 277 and 1.6 rocker valve lift would be arround  0.750" I am worry if the K800 spring could handle the lift. What would be affected to cam and lifters?

I am looking your share here.
Thanks

[Torben Alstrup]

Hello.
0,750" is a rather healthy lift
- IF - the K800´s can handle that, which I doubt, There will be no "extra" wear on the cam and lifters apart from what normally is seen on radical engines. But you´ll need superior protection of the rotating parts.
Another thing is, - can the heads handle that lift ?

T

[neil68]

Is that a typo in the first post?

Web 277 has 0.441" lift which = 0.705" with 1.6 rockers (and 0.661" with 1.5's).

[bedjo78]

Torben,

That's right i was wondering on rotating parts if could handle that lift. the heads is low compression heads and could handle the lift. but the rotating parts load would be my concern.
 

Neil,

I haven't personally check the cam lift. Or see the cam chart.  The owner got the cam with no chart.  And I saw on webcam website states 0.66 lift which i though using 1.4 rocker.
Thanks for that info's..

Not decide yet weather i will get another cam with lower camlift or try to get 1.5 ratio rocker which is expensive with pauter heads.

[Deadly1]

I would use .700 as the upper limit for K800 springs anything beyond that would likely need a better spring to control the valve anyhow. K900 or PSI springs. Wayne