1.6 Rockers l98?
01-26-2007, 08:56 PM
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Car: 1991 Camaro Z28
Engine: L98 5.7 350 TPI
Transmission: Brand New (again) 700r4
Axle/Gears: GM 10 bolt 7.625 W/ TrueTrac 3.23
1.6 Rockers l98?
I was wondering if anyone had a link or maybe some specs on what kind of 1.6 rockers I could use on my stock heads with stock cam. Any help would be appreciated.
01-28-2007, 08:22 PM
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Here's a few choices with part numbers from Summit. Be sure to go with a narrow body, self aligning rocker if you're retaining your stock heads and pushrods.
Crane Gold Race rockers CRN-10758-16
Comp Cams Magnum roller tips - self aligning CCA-1418-16
Comp Cams Pro Magnum fuller rollers - self aligning CCA-1318-16
Crane Gold Race rockers CRN-10758-16
Comp Cams Magnum roller tips - self aligning CCA-1418-16
Comp Cams Pro Magnum fuller rollers - self aligning CCA-1318-16
01-30-2007, 12:46 PM
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Car: 92 1500p\u 2wd
Engine: 91 z28 tpi 355
Transmission: 91 700r4
ive herd that if you run 1.6rr on a the stock cast iron heads you can pull the rocker studes out...is this true, arnt they just press in studes? i have a 487-495 lift cam with 1.52rrs so im over .500lift i do have better springs to handle it but ive been told dont go with a 1.6 cus i light pull them out. 
01-30-2007, 04:29 PM
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Car: 1995 Corvette
Engine: LT1
Transmission: 6 spd Manual
Axle/Gears: Dana 44, 3:45:1
You can pull the studs out if you exceed a certain poundage from the springs (not sure what that figure is).. the 1.6 rockers will only affect this situation by opening the valve a bit more at peak lift (resulting in a little more spring pressure at open).. You're risking pulling the stock studs with any kind of better cam/springs...
Oh, and to the original poster, I'd recommend some Comp Cams Magnum Roller-tip rocker arms... Just get the self-aligning ones if you have stock heads..
Oh, and to the original poster, I'd recommend some Comp Cams Magnum Roller-tip rocker arms... Just get the self-aligning ones if you have stock heads..
01-31-2007, 08:03 AM
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Car: 87 IROC
Engine: 5.7 TPI
Transmission: 700R4
Axle/Gears: 3.27
Ive been following this thread and have a concern now. I just purchased a ZZ9 cam from TPiS and am looking at getting 1.6 rr. Will this have an effect on pulling the stock studs out. I havent heard of this possible problem b4. Just curious now, I dont want to cause any damage.
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