Do I have 1.5 or 1.6 rockers?
09-16-2008 | 04:53 PM
#1
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Joined: Jul 1999
Posts: 300
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From: Latham NY USA
Car: 91 Formula
Engine: 350
Transmission: T-56
Axle/Gears: 10 Bolt 3.23
Do I have 1.5 or 1.6 rockers?
How can I tell if I have 1.5 or 1.6 ratio rockers? Stripped the 350 that came out of my old car. The heads had roller tip rockers that are being reused on the rebuild. It just crossed my mind I have no idea what ratio the rockers are, there are no markings on them, engine had been in the garage for a LONG time, engine builder is unknown.
09-16-2008 | 05:23 PM
#2
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Joined: Sep 2005
Posts: 622
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From: Rochester, NY
Car: '82 Sport Coupe/'89 bird/'77 280z
Engine: 355/2.8/L28E(t)
Transmission: TH350/T5/4 spd
Axle/Gears: 3.73/3.42/3.54
Re: Do I have 1.5 or 1.6 rockers?
You could measure each end to the fulcrum and divide, it might not be that accurate though.
09-17-2008 | 06:58 AM
#3
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Member
iTrader: (3)
Joined: Jul 1999
Posts: 300
Likes: 0
From: Latham NY USA
Car: 91 Formula
Engine: 350
Transmission: T-56
Axle/Gears: 10 Bolt 3.23
Re: Do I have 1.5 or 1.6 rockers?
Thanks for the suggestion, finally got enought things in the engine bay out so I pulled a valve cover to compare to the stockers. Looks like I got 1.5 I suppose it's something to upgrade in the future if by some miracle the new engine isn't enough lol
09-17-2008 | 05:02 PM
#4
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Joined: Oct 2002
Posts: 9,067
Likes: 1
From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
Re: Do I have 1.5 or 1.6 rockers?
If they are one of the better aftermarket brands (Comp, Crane, etc), they will more than likely be marked with '1.5' or '1.6' somewhere on the rocker body - often right on the nose, behind the roller tip. With the chinesium rockers, who knows?
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