BUSIDN High Torque 3 HP Mini Starter for Chevy V6/V8 9-Tooth — 153/168-Tooth Flywheel, Gear Reduction

The BUSIDN High Torque 3 HP 9 Tooth Mini Starter is a compact, gear-reduction replacement starter designed to crank Chevrolet small- and big-block V6/V8 engines with 153- or 168-tooth flywheels.

This heavy-duty 12V mini starter combines a 3.0 HP motor, 3.75:1 gear reduction and a 9-tooth pinion to deliver strong cranking power in a compact mid-size housing. Built with a cast aluminum body and a billet aluminum adjustable mounting block, the unit fits many Chevy race and street engines from 262 up to 454 cubic inches and accepts either automatic or manual transmissions when paired with 153- or 168-tooth flywheels.

Which engines and flywheels does this starter fit?

The BUSIDN starter is made to replace starters on Chevrolet V6 and V8 engines ranging from 262 CID through 454 CID, including Small Block Gen I and multiple Big Block generations. It supports flywheels with either 153 or 168 teeth, making it suitable for many race and performance applications.

• Compatible with Chevy small-block 262–350 CID and big-block 396–454 CID engines.
• Designed for 153-tooth or 168-tooth flywheels.
• Works with automatic (AT) and manual (MT) transmissions.

How does this starter deliver high torque in a compact package?

This is an OSGR-style, gear-reduction starter: the 3.75:1 reduction multiplies motor torque while the 9-tooth pinion minimizes size and weight. The result is quick, reliable engagement and stronger cranking ability compared with direct-drive starters of similar dimensions.

• 3.0 HP (2.0 kW) motor for higher cranking force.
• 3.75:1 gear reduction increases torque to the flywheel.
• 0.988 in (25.1 mm) gear OD and 9-tooth pinion for compact fitment.

What are the construction and mounting features?

The starter uses a cast aluminum housing to keep weight down and heat dissipation good, while a billet aluminum adjustable mounting block provides precise alignment with the flywheel. Standard clockwise rotation and the included mounting flexibility make it straightforward to position on a range of Chevy blocks.

• Cast aluminum housing for durability and light weight.
• Billet aluminum adjustable mounting block for alignment.
• Standard CW rotation and mid-size starter profile for many engine bays.

Are there installation notes or part numbers to check before buying?

Installers should verify flywheel tooth count, transmission type and space in the engine bay before ordering. Multiple part numbers cross-reference this unit, so check your existing starter number or the provided list to ensure correct replacement.

• Cross-reference part numbers: JM7001R, JM7001BK, 18493N, PP106, PE106, 91-25-1201, and others.
• Professional installation is recommended; instructions are not included.
• Maximum recommended compression ratio: 11.0:1—confirm with engine builder for high-compression setups.

Who this is for: The BUSIDN 3 HP 9 Tooth Mini Starter is aimed at performance car owners, engine builders and racers who need a compact, high-torque replacement for Chevrolet small- and big-block V6/V8 engines using 153- or 168-tooth flywheels. If you require stronger cranking capability in a lighter, space-saving starter and you can verify flywheel compatibility and rotation, this unit is a practical upgrade or replacement for many street and track applications.