damper differences
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Joined: Dec 2004
Posts: 133
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From: Evansville IN
Car: 1984 Camaro conv
Engine: 350, .040, warmed up
Transmission: 700R4
damper differences
besides diameter, how different are vib dampers between a 350 s 305 sbc? are they interchangeable???
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
they're all internal balanced motors so they will interchange, although they're around $40-65 from summit for new non-SFI approved ones.
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From: Grand Rapids, MI
Car: Z28
Engine: Sb2.2 406
Transmission: Jerico 4 speed
Axle/Gears: Ford 9" 3.60
An SFI aprroval means that particular component is built to spec's required for a particular racing sanction.
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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
The 350 one is 8", and heavier, meant to balance the harmonics of a heavier rotating mass. The 305 one is 6 3/4", meant to... well do the opposite.
You can use either one, the lighter one tends to make the motor rev easier (apparently), but the 8" one... Makes it more smooth? I forget offhand...
If you're not bracket racing, or constantly above 6000RPM, you don't need the $250 SFI approved one, you can use the basic $60 summit (or local) style one.
You can use either one, the lighter one tends to make the motor rev easier (apparently), but the 8" one... Makes it more smooth? I forget offhand...
If you're not bracket racing, or constantly above 6000RPM, you don't need the $250 SFI approved one, you can use the basic $60 summit (or local) style one.
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