HARMONIC BALANCERS
ATI Super Dampers Consist of an outer shell, inner shell, crankshaft hub, and eight elastomers. Meet SFI 18.1 specifications.
Ring Shell
Outer Hub
Crank Balance
Total Weight
Part No.
Application
Diameter
Style
Chrysler Big Block ATI917110E
383-440, Blower Drives
7.074" 7.074" 7.074" 7.074"
3 3
Steel Steel
Steel Steel
Internal Internal Internal Internal
8.75 lbs.
ATI917122E ATI917470E ATI917127E †
383-440
11 lbs.
383-440, OEM
2 Aluminum Steel
7.50 lbs. 8.75 lbs.
383-440 Donovan, KB Gear Drive, Indy Timing Cover
3
Steel
Steel
† Not an OEM replacement for stock pulley location. Damper Service Parts Part No.
Engine
Construction
Hubs
ATI916661L
Big Block Mopar, OEM Front with Donvan/KB Gear Drive
Steel
Shell Assemblies (Less Crankshaft Hub) ATI918442E
Chrysler Front, 7.074" Dia. 3 Ring with Inner Shell, Int. Bal.
Steel
Fluidampr Harmonic Balancers Traditional Fluidampr steel balancers meet SFI 18.1 specifications. Part No. Model Engine
Diameter
Balance
Chrysler Big Block FLU720311
Fluidampr Fluidampr
383-440
7.250" 7.250"
Internal Internal
FLU720321
1957-58 392 Hemi
Pro/Race Pro/Street
Pro/Street balancers feature a nodular iron construction, pressure-bonded elastomer with 3000 lbs. sep- aration force, bolt-on counterweights, and are machined to exact tolerances, with 60 degrees of perma- nent easy-to-read timing marks. Not SFI certified. Part No. Model Engine Diameter Balance Weight SFI PRH24279 † Pro/Street 383-440 /426 Hemi 7.25" Internal 8.00 lbs. No † Fits 440 forged crank, 361-383 forged cranks, adjustment as detailed in instructions. Pro/Sport Pro/Sport balancers are fully machined from high-quality carbon steel, and feature a pressure-bonded elastomer with 3000 lbs separation force, and positively retained outer inertia ring. They are accurately balanced, spin tested to 12,000 rpm removable counterweights, highly polished and finished in a durable baked enamel finish. Meets SFI Spec. 18.1. Part No. Model Engine Diameter Balance Weight SFI PRH34279 Pro/Sport 383-440/426 Hemi 6.61" Internal 10.80 lbs. Yes Powerbond Harmonic Balancers Two types of balancers are available:
• SS Race Series balancers are SFI-approved. • Street Series models are not SFI-approved. Part No. Model
Engine
Diameter
Balance
SFI-Approved
Chrysler Big Block PBBPB1112-ST
Street Series
440 440 440
7.260" 7.260" 7.100"
Internal Internal Internal
No
PBBPB1112-SS PBBPB1112-N
Race
Yes
Premium OEM Replacement
No
Trick Flow Specialties Harmonic Damper High-performance balancer is manufactured from high-grade carbon steel with elastomer construc- tion. Meets SFI 18.1 specifications. Part No. Model Engine Dia. Balance TRFTFS-19012 Track Max 383-440 7.010" Neutral
312 2021-22 ENGINE BUILDER CATALOG
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