Harmonic Balancer Torque Setting - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**68350** · 08-29-2005, 10:23 PM

What is the torque setting for the harmonic balancer on a 350? Book says 60 ft-lbs., but that seems low. Thanks for any help

kaycee · 08-29-2005, 10:54 PM

Sounds good to me my 327 doesn't even have one,not even drilled for one

*wolfthing2000* · 08-29-2005, 11:00 PM

Don't forget, the balancer is keyed and the hub should be a tight fit. I can't remember , but the bolt is only about 7/16 isn't it.???

Longhorn Man · 08-29-2005, 11:54 PM

60 is plenty. The bolt doesn't hold it on, the bolt just presses it onto the crank snout.

Fred T · 08-30-2005, 02:02 AM

Torque range for 7/16-20 is 50-70 ft-lb. That is with motor oil as lube. I would use Loc-tite and torque to 60 ft-lb.

08-29-2005, 10:23 PM	#1
68350 Senior Member Join Date: Jan 2002 Location: Williston, ND Posts: 2,999	Harmonic Balancer Torque Setting What is the torque setting for the harmonic balancer on a 350? Book says 60 ft-lbs., but that seems low. Thanks for any help __________________ 68 Chevy CST/10, 50th Anniversary, 327/th400, 373 posi, buckets 68 GMC Shortbox Stepside, 402/th400, Tilt, Tach, Bucket Seats, 3.08 Positraction 69 Chevy Camaro SS, 383, 4 speed, positraction 70 Chevy El Camino SS396, Triple Black, 454/th400, Tach 70 Chevy Shortbox Stepside 4x4, 350/th350, Tilt, Tach, Cab Lights, Bumper Guards, Tow Hooks 70 Chevy 3/4 Longbox, 350/auto, 70k, SURVIVOR 71 Chevy Blazer, CST, 350/auto 71 GMC Sierra K2500, 454, 4 speed, 4.10 posi, 37s 71 Custom/30, Open Road, 350/th400, tilt 72 Chevy Shortbox Fleetside, 496 Stroker/th400, Tilt, Tach, Bucket Seats, 3.42 Posi 72 GMC Sierra Grande 2500. 427/th400, tilt, a/c, tool and stowage, buckets/console, 3.54 posi

08-29-2005, 10:54 PM	#2
kaycee Registered User Join Date: Jan 2000 Location: Wyoming USA Posts: 2,449	Sounds good to me my 327 doesn't even have one,not even drilled for one __________________ 2001 Silverado K-1500 2005 FXDWG stage3 69 CHEVY Short/Step 327/4L60 373 posi 63 IMPALA 327

08-30-2005, 02:02 AM	#5
Fred T Cantankerous Geezer Join Date: Aug 2002 Location: Bel Aire, KS Posts: 6,264	Torque range for 7/16-20 is 50-70 ft-lb. That is with motor oil as lube. I would use Loc-tite and torque to 60 ft-lb. __________________ Fred There is no such thing as too much cam...just not enough engine.

08-29-2005, 11:00 PM	#3
wolfthing2000 Account Suspended Join Date: Oct 2004 Posts: 1,276	Don't forget, the balancer is keyed and the hub should be a tight fit. I can't remember , but the bolt is only about 7/16 isn't it.???

08-29-2005, 11:54 PM	#4
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	60 is plenty. The bolt doesn't hold it on, the bolt just presses it onto the crank snout.



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