What spring on the Aluminum GN1 heads what springs for a roller cam

[chargedtt]

What part numbers are the roller springs the same for a Iron or Aluminum Champion head? Are they interchangable between the iron and Aluminum heads?Part numbers for the springs?

[ULYCYC]

Yes, you order the same spring for both heads but lot's of variation can change this. Cam, valves, rockers/ ratio used. You just can't take a set of springs out of the box and slap them on. You need to give more info on what your setup.

[chargedtt]

Originally Posted by ULYCYC

Yes, you order the same spring for both heads but lot's of variation can change this. Cam, valves, rockers/ ratio used. You just can't take a set of springs out of the box and slap them on. You need to give more info on what your setup.

Cam is a comp. 212/212 with the 853 roller lifters and T&D 1.55 roller rockers. I have a set of Champion GN1 Alum. heads I want to install but their set up for flat tappet cam. I wanted to take the beehive springs from my Iron heads and install them on the Alum GN1's..Or do I have to buy k-motions -750's? What height and springs would I use on the Alum.

[Old Buzzard]

I ran the beehives.. worked well, at over 6500...

[chargedtt]

Originally Posted by Old Buzzard

I ran the beehives.. worked well, at over 6500...

Which beehives do you know the part #on the springs, retainers and locks?

[Old Buzzard]

Originally Posted by chargedtt

Which beehives do you know the part #on the springs, retainers and locks?

I used the 26920 springs. The retainer #'s will depend on the stem size, and material U want. [Titanium vs steel]
Don't forget the locator cups.
I used the tit retainers. The reduction in valvetrain wt was supposedly as much as switching from steel to tit valves w/ stock design springs, etc.