can i use aset of crane roller rocker arms 1.6 ratio on a set of al. L98 heads? tthanks for any help

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86 camaro 405 sm. blk. th 350 tranny 3.42 gears

 

Depends on the exact combination you are using. I'm using regular Crane 1.6 roller rockers with 7/16" studs with hardened guideplates and hardened pushrods....all non-selfaligning. ~20k miles so far...no problems. HTH

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Tom
'88 Ragtop 379 SuperRam/Haltech EFI
'64 SS
http://home.sprynet.com/~ragtop88/main.htm

 

I've got Crane Gold Race 1.6 roller rockers on my aluminum L98 heads. They're the self-aligning variety.

-Mark W.
'88 SC Camaro w/ 305 TBI

 

my rockers are not self aligning -would i have to use guide plates then?

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86 camaro 405 sm. blk. th 350 tranny 3.42 gears

 

Yeah, if they are not self-aligning you'll have to convert to guideplates.

-Mark W.
'88 SC Camaro w/ 305 TBI

 

Yes you can use 1.6 rockers, but what are the specs of your cam, and your springs? You dont want to have the springs coil bind because the cam is too large. Most stock GM springs that come in our cars will work up to .480 lift safely, maybe .490. I believe the springs that come on the L98 aluminum heads are good for .510, since they use them with the ZZ3 cam.

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1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

[This message has been edited by Kevin91Z (edited October 26, 2000).]

 

my cam is .447 thats why i'm going to 1.6- i'll be adding new springs thanks for all the help guys