HARMONIC BALANCERS
ATI Super Dampers ATI Dampers consist of an outer shell, inner shell, crankshaft hub and up to three elastomers. All ATI dampers meet SFI 18.1 specifications.
Ring Shell
Outer Hub
Crank Balance
Total Weight
Part No.
Application
Diameter Style
Buick V-6 ATI917456
Grand National, T-Type GNX 1982-87 Includes 6 Groove Aluminum 6.445" OD Serp. Pulley
7.074
3 Alum.
Steel
Internal
6.25 Lbs.
Chevrolet Small Block ATI917080
400
7.074" 7.074" 7.074" 7.074" 7.074" 6.325" 6.325" 6.750" 6.325" 6.325" 6.325" 6.325" 7.074" 7.074 6.325" 7.074" 6.325" 6.325" 7.074" 7.074" 6.325" 7.480" 7.350" 6.780" 7.530" 7.530" 7.530" 6.780" 6.750" 6.750" 7.350" 6.325" 7.530" 7.430" 6.780" 7.480" 7.074" 7.480" 6.780" 7.480" 7.480" 7.074" 6.325" 8.074" 7.074" 7.074" 7.074" 6.325" 7.074" 7.074" 7.074"
3 Steel 2 Alum. 2 Alum. 2 Alum. 3 Alum. 2 Alum. 2 Alum. 3 Alum. 2 Alum. 3 Alum. 3 Alum. 3 Alum. 3 Steel 3 Steel 3 Steel 3 Steel 3 Steel 3 Steel 3 Steel 3 Alum. 3 Alum. 3 Alum. 3 Steel 3 Alum. — Steel — Steel — Alum. — Alum. 3 Alum. 3 Alum. 3 Steel 3 Alum. 3 Steel — Steel — Steel — Alum. 3 Alum. 3 Steel 3 Alum. 3 Alum. 3 Alum. 3 Alum. 3 Steel 3 Steel 3 Steel 3 Steel 3 Steel 2 Alum. 3 Alum. 3 Alum. 3 Steel 3 Steel
Steel Steel Steel Steel Steel Steel Steel Steel Alum. Steel Alum. Steel Steel Steel Steel Steel Steel Steel Steel Steel Alum. Steel Steel Steel Steel Steel Alum. Steel Steel Steel Steel Steel Steel Steel Steel Steel Steel Steel Steel Steel Steel Steel Steel Steel Steel Steel Steel Steel Steel Alum. Steel Steel
External Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal External Internal
11 Lbs. 7.50 Lbs.
ATI917200
283-350
ATI917201 (A,B)
283-350 1.600", Big Block Chevrolet Crank Snout
5 Lbs. 5 Lbs.
ATI917206 ATI917221 ATI917260 ATI917261
283-350 283-350 283-350
5.45 Lbs. 5.50 Lbs. 5.75 Lbs. 12 Lbs. 6.25 Lbs. 4/75 Lbs. 6.30 Lbs. 11 Lbs. 11 Lbs. 8.50 Lbs. 8.75 Lbs. 8.50 Lbs. 8.50 Lbs. 8.75 Lbs. 6.25 Lbs. 4 Lbs. 7.30 Lbs. 9.75 Lbs. 4.50 Lbs. 9.75 Lbs. 9.75 Lbs. 6.75 Lbs. 4.50 Lbs. 4.50 Lbs. 4.50 Lbs. 9.75 Lbs. 6.25 Lbs. 9.75 Lbs. 6.85 Lbs. 4.50 Lbs. 11.50 Lbs. 9.75 Lbs. 6.75 Lbs. 4.50 Lbs. 7.90 Lbs. 8.30 Lbs. 6 Lbs. 8.50 Lbs.. 11 Lbs. 8.75 Lbs. 8.75 Lbs. 8.75 Lbs. 6.25 Lbs. 11 Lbs. 8.75 Lbs. 5 Lbs. 4 Lbs. 11 Lbs.
283-350, 1.600", Big Block Chevrolet Crank Snout
ATI917275 (E) ATI917320 ATI917411 (A) ATI917480
350 LT-1/LT-4 ,Corvette
283-350
283-350, 1.600", Big Block Chevrolet Crank Snout
283-350 283-350 283-350 283-350 283-350 283-350 283-350 283-350 283-350 283-350
ATI917410 ATI917780 ATI917785 ATI917781
ATI917783 (A,B) ATI917784 (A)
283-350 1.600", Big Block Chevrolet Crank Snout
ATI917789
ATI918872E (F)
ATI917220
ATI917236 (G)
LT1/LT4 Gen 5 Engines ATI917315
LT1 2014, Dry Sump, Corvette 350 LT1/LT4, F-Body ,1993-97 350 LT1, Caprice/Impala ,1994-96 346 LS1 "Y" Body W/AC 8 Rib Conv. "Y" Body OEM Dia. W/AC Pulley 5.7L, F-Body OEM Dia. W/AC. Pulley "Y" Body 10% UD W/AC Pulley
ATI917270 (E) ATI917327 (E)
LS Series Engines ATI917345
ATI917246 ATI917264 ATI917278
ATI917276 (E) ATI917277 (E) ATI917242 (E) ATI917211 (A,B)
346 LS1 "F" Body W/AC
346 LS1 "F" Body Without AC
346 LS1 "F" Body W/AC
LS1 1.483" Crank Snout, OEM on ZZ572 GM Crate Engine 7.074"
ATI917776 ATI917286 ATI918620 ATI918629 ATI918635 ATI917266 ATI917289 ATI918628 ATI918854 ATI917061 ATI917062 ATI917065 ATI917290 ATI917300
LS1 Crank Non-Serpentine
LS1/LS2, 4.8/5.3/6.0L Truck, SSR, 5.8% UD AC Pulley LS7, 7.0L "Y" Body OEM Dia. 8 GRV/4 GRV AC Pulley
LS3, 6.2L "Z" Body, 10% UD W/AC Pulley LS3 Camaro 6-Bolt for Blower Pulley LS1/LS2 "F" Body BB Blower Drive
ATI918853 (H)
LS Engines GM Y-Body
LS6 Engines GM Y-Body, 10% Underdrive
LS3 Camaro Z-28 Body 2010-16
LSA Camaro Z-Body ZL1-No Pully Supplied
Chevrolet Big Block ATI917060
396-427 396-427 396-427 396-427 396-427 396-427 396-427 396-427
ATI917064 (H,J)
ATI917310 (B)
ATI917740
454
ATI918871E (H)
396-427
(A) Hub Is Counterbored for A Dry Sump Drive (B) Chevrolet 3-Bolt Front (E) Signifies A Serpentine Style Balancer
(F) With Blower Pulley Bolt Pattern And Two 3/16" Keyways (G) For Steel Hub, Use Hub ATI916172
(H) With Blower Pulley Bolt Pattern (J) Part Number ATI918038 is 12% O.D.
2018 ENGINE BUILDER CATALOG
31
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