Rocker Arm Question
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Joined: Jul 2007
Posts: 149
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From: Lisle Illinois
Car: 95 SHO. 87 IROC red 69 Vette blue
Engine: 3.0 Yamahammer.5.7 TPI L98, 350
Transmission: mtx4 ,700r4, 4speed,
Axle/Gears: 3.27, 3.73
Rocker Arm Question
Im buying new 1.6 ratio roller rocker arms and I am not sure weather my motor uses 3/8" stud or 7/16" stud. Without removing the valve covers and rocker arms is there any easy way to know if a stock 87 l98 uses a 3/8" stud or a 7/16" stud, I am not sure if all l98s are the same or they are different and if they are all the same I am not sure if all l98s are 3/8" or 7/16"
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Joined: Jul 2004
Posts: 10,763
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: Rocker Arm Question
3/8"
7/16" is the heavy duty aftermarket stud, or Big block size. All stock SBC's used 3/8"
7/16" is the heavy duty aftermarket stud, or Big block size. All stock SBC's used 3/8"
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Posts: 572
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From: Tallahasse Fl
Car: 91 Trans Am GTA
Engine: Tpi 5.7
Transmission: 700r4
Axle/Gears: 3:23
Re: Rocker Arm Question
thank you for helping me also I just got a set of 7/16 for really cheap it sucks that they wont work for my car
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