Page 32 - 2018 Racecar Engineering Engine Parts and Accessories Catalog

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