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1.5" or 1.52" Roller Rockers

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Old Apr 23, 2006 | 09:11 PM
  #1  
cheese_kake's Avatar
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From: Jacksonville, Florida
Car: 1992 Camaro Z28
Engine: 5.7 LT1
Transmission: 4L60
Axle/Gears: 3.23's
1.5" or 1.52" Roller Rockers

Im using stock L98 heads (ported) and I want to use either 1.5 or 1.52 ratio roller rockers. Im not using the 1.6 because the head requires some modification. So out of 1.5 or 1.52 wich will work best??
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Old Apr 23, 2006 | 09:15 PM
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No significant difference.... a little over 1% more valve lift, is all.... so, something like .517", instead of .510", is all you'll get. I doubt you'd be able to tell the difference even on a dyno.
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Old Apr 23, 2006 | 09:23 PM
  #3  
cheese_kake's Avatar
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From: Jacksonville, Florida
Car: 1992 Camaro Z28
Engine: 5.7 LT1
Transmission: 4L60
Axle/Gears: 3.23's
Ok thanks, now I have some clarity to this. So I guess I'll just go with the 1.52's the comp ones are I believe the same price. So what the hell, it can only help.
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Old Apr 24, 2006 | 08:38 PM
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From: GA
Car: '90 C1500
Engine: SBC MPFI
Transmission: 4L80e
Axle/Gears: 4.30
I have the 1.52s and love them. Every little bit helps IMO.
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Old Apr 24, 2006 | 09:32 PM
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its scot's Avatar
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Car: 85 iroc-z
Engine: blown 350
Transmission: 700r4
Axle/Gears: 4.10
they not only give you a little more lift they also open the valve a little faster
making the cam have a little more duration in the upper lift erea of the lobes. not to step on eny ones toes but you will see more power.
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