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SKU:
ZZ3H00631
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66515 Harmonic Balancer Installation Tool for Chevy SBC BBC 5/8-16 & 7/16-16
$45.69
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$45.69
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$45.69
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
Harmonic Balancer Installation Tool for Chevy SBC BBC
This 66515 Harmonic Balancer Installation Tool works on Chevy small block and big block engines with 5/8-16 and 7/16-16 threads.
Overview
This harmonic balancer installation tool is a dedicated installer designed to safely press the balancer onto the crankshaft without damaging the seal or threads. It fits Chevy small block and big block applications using the 5/8-16 or 7/16-16 crank thread sizes. The tool simplifies engine assembly, making it essential for rebuilds and maintenance on SBC and BBC engines.
Built For Performance
- Fits 5/8-16 and 7/16-16 crankshaft threads
- All-steel construction for repeated heavy use
- Captive thrust bearing reduces turning friction
- Hex drive allows use with standard sockets or wrenches
- Pilot design aligns balancer to crank center
Fits These Machines
- for Chevy Small Block (SBC)
- for Chevy Big Block (BBC)
On-The-Job Use
- Installing harmonic balancers during engine assembly
- Replacing balancer on rebuilds in automotive repair shops
- Works in tight engine bays with slim profile
- Applicable for both early and late Chevy V8 blocks
Specs At A Glance
| Part Number(s) | 66515 |
| Thread Sizes | 5/8-16 and 7/16-16 |
| Engine Fitment | Chevy SBC / BBC |
Good To Know
Q: Can I use a hammer with this tool? A: No, the tool is designed to be turned by a wrench or socket to pull the balancer smoothly; hammering can damage the threads or balancer.
Q: Does it work on other engine brands? A: This specific model is made for Chevy small and big block crankshaft threads; other brands may need a different thread adapter.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.