Avanti Alternators and Starters

High-torque, gear-reduction design. 100% NEW, not rebuilt. Offset design results in more clearance between the oil pan and the starter, and can be rotated for additional chassis clearance. The high-torque, high-output motor spins the engine over faster than stock starters, delivering 40-50% more cranking power. 3.75-to-1 sealed gear-reduction drive and full ball bearing construction. Includes shims to set pinion-gear engagement (when necessary). Approved by all leading sanctioning organizations. Fits all Chevy V 6 and small and big block V 8 engines using 153 or 168 tooth flywheels. Heavy-duty PROFORM P/N 66258 weighs 1-1/2 lbs. more and is 1″ longer than P/N 66256.

Product Features:

• High-Torque Starter; Gear Reduction Type
• Natural Finish
• Made from Aluminum and Steel
• For 11.1:1 Compression Ratio
• Fits All Chevy V8 Engines
• Billet Aluminum Mount
• Power Output: 1.4 KW
• 100% New Components; Not Re-man or Refurbished
• Includes Shims for Pinion-Gear Engagement
• Offset Design for More Oil Pan Clearance
• Sold Individually
• PROFORM Parts Brand Product

TSP’s billet aluminum brackets are the best option when cleaning up the front of your engine. Precisely CNC-machined from 6061-T6 aluminum, they are guaranteed to provide a perfect fit and secure grip. They are available in multiple high-quality finishes to match your desired aesthetic.

Product Features:

• Fits Chevy small block engines with long neck water pumps
• Available in black, polished, and chrome finishes
• Bracket Type, Upper And Lower
• Mounting Position, Passenger Side

TSP’s billet aluminum brackets are the best option when cleaning up the front of your engine. Precisely CNC-machined from 6061-T6 aluminum, they are guaranteed to provide a perfect fit and secure grip. They are available in multiple high-quality finishes to match your desired aesthetic.

Product Features:

• Accessory Type, Alternator
• Available in black, polished, and chrome finishes
• Bracket Type, Upper And Lower
• Mounting Position, Passenger Side

TSP’s billet aluminum brackets are the best option when cleaning up the front of your engine. Precisely CNC-machined from 6061-T6 aluminum, they are guaranteed to provide a perfect fit and secure grip. They are available in multiple high-quality finishes to match your desired aesthetic.

Product Features:

• Accessory Type, Alternator
• Available in black, polished, and chrome finishes
• Bracket Type, Upper And Lower
• Mounting Position, Passenger Side

TSP’s billet aluminum brackets are the best option when cleaning up the front of your engine. Precisely CNC-machined from 6061-T6 aluminum, they are guaranteed to provide a perfect fit and secure grip. They are available in multiple high-quality finishes to match your desired aesthetic.

Product Features:

• Fits Chevy small block engines with long neck water pumps
• Alternator Style, GM 10SI
• Bracket Type, Upper And Lower
• Mounting Position, Middle Passenger Side

TSP’s billet aluminum brackets are the best option when cleaning up the front of your engine. Precisely CNC-machined from 6061-T6 aluminum, they are guaranteed to provide a perfect fit and secure grip. They are available in multiple high-quality finishes to match your desired aesthetic.

Product Features:

• Fits Chevy small block engines with long neck water pumps
• Alternator Style, GM 10SI
• Available in black, polished, and chrome finishes
• Mounting Position, Middle Passenger Side

TSP’s billet aluminum brackets are the best option when cleaning up the front of your engine. Precisely CNC-machined from 6061-T6 aluminum, they are guaranteed to provide a perfect fit and secure grip. They are available in multiple high-quality finishes to match your desired aesthetic.

Product Features:

• Fits Chevy small block engines with long neck water pumps
• Alternator Style, GM 10SI
• Bracket Type, Upper And Lower
• Mounting Position, Middle Passenger Side