We have balancers available for both 28 oz. or 50 oz. balance small block Fords. They measure 6.4" diameter, are 3" in total length, are marked to 40 degrees at three locations and feature both 3 and 4 bolt pulley holes.
They are made to early style length of 3" to allow their use in tight applications, but adding on with a spacer for pulleys listed below, you can fit almost any car and pulley combo. These spacers are unique and can only be used with the new balancers shown here. Pulley spacers listed are a 4 bolt design, but can be redrilled for the 3 bolt arrangement.
Counter weight is removable for zero balanced cranks. Fits most 260/289/302/351W/5.0 Ford engines.
This engine family used 1 of 5 common length balancers, use the following information to determine your application needed.
3" long, no pulley spacer required, white spacer adaptor ring can be removed from balancer. 3-3/16" long, limited applications, use 91015366 #81006 spacer and machine .090" off of 3 surfaces. 3-3/8" long, use 91015366 #81006 spacer. 3-7/8" long, use 91015368 #81008 spacer. 4" long, use 91015367 #81007 spacer. 91015366 This spacer must be used when replacing an original balancer that is 3-3/8" long which were typically found on '79 and earlier 351W engines.
91015367 This spacer must be used when replacing an original balancer that is 4" long which were typically found on '80 and later 351W, '80 and earlier 302, and late model 5.0L engines with some triming of spacer required on 5.0L engines.
91015368This spacer must be used when replacing an original balancer that is 3-7/8" long which were typically found on '80 and earlier 351W Ford racing HO engines or '80 and later 351W, 302, or 5.0L engines using the Ford Racing .917" crank sprocket.