DA-400

This is a Brand New Factory Fresh Pioneer Harmonic Balancer.

Fits small block 400 Chevrolet engines 1970-80 with the timing tab on the L.H. (driver's side) of the timing cover.

 8 " o.d. External Balance

Pioneer Part number DA-400

Replaces o.e.m. part number 6272225

Specs:

Crank Bore 1.124" (31.6mm)

Ring O.D. 7.99" (203mm)

Nose Diameter (seal area) 1.88" (47.7mm)

Overall Width 2.34" (59.5mm)

Weight 10.77 Lbs.

All Pioneer balancers are manufactured from premium grade nodular (S.G.) iron similar to the highly durable material used in many crankshafts. Both hubs and inertia rings are produced in nodular iron unlike other brands where a nodular iron center may be used with a "grey iron" ring to reduce cost. Inertia Rings are also prone to cracking, particularly where balancing holes are drilled. Nodular iron adds more cost but is well worth the investment through improved performance. Pioneer's Balancers are highly resistant to cracking and wear in the key way and seal area, adding significantly to long-term balancer durability.

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