Abdulla

Hi,

I am going to get pushrods from CaomCams , I have lunati 226/226 .554/.554 114 cam .....

So , what is the best length for pushrods with this cam ???

thank you in advance

Scalpel

iTrader: (4)

Stock heads or are they ported/polished/milled?
If they're milled, how much were they milled?

Comp Cams have a base circle 0.030" smaller than stock so if you're running stock heads then a stock length 7.400" p-rod is still fine to use.

99 Black Bird T/A

iTrader: (4)

It will really depend on the rest of your set up like Cannibal mentioned.

With milled heads and a smaller base circle cam most of the time 7.35 push rods will work. With my milled TEA heads and Comp 224 XE-R the 7.35's were the right length

Larry

iTrader: (4)

Depends on how much is milled and how much smaller base circle. With a smaller base circle you would need a equally longer push rod to equal factory lifter preload. With milled heads a shorter. I would recommend having your geometry check after any changes. With roller tip rockers it's a fairly easy check.

My stock 98 base circle is 1.552. I installed an 01 LS6 cam with a 1.520 base circle and had more lifter noise but probably acceptable. With my current Comp 218/218 with a base circle of 1.540 no noise. Seems to me you can go up to about .030 smaller base circle without too much noise. You will be changing the geometry though and with roller tip rockers the load gets farther away from centered. That can cause premature guide wear and valve tip deformation when the roller is too far off the valve tip center.