Upgrade your vehicle's charging system with this GM 10SI Style 110 Amp Alternator engineered to provide dependable charging performance and increased electrical capacity for a wide range of GM applications. Designed for muscle cars, street rods, classic trucks, restorations, and custom builds, this alternator delivers the charging output needed to support modern electrical accessories while maintaining a clean chrome appearance.

The 110 amp output provides a substantial increase in charging capacity over many factory charging systems and helps support electric cooling fans, electric fuel pumps, upgraded ignition systems, aftermarket lighting, air conditioning systems, audio equipment, and other electrical accessories. Increased charging capacity helps maintain stable system voltage during idle, cruising, and stop-and-go driving conditions.

Built using the proven GM 10SI alternator platform, this unit features an internal voltage regulator and one-wire capable operation for simplified installation. The 10SI design remains one of the most popular charging system upgrades for classic GM vehicles due to its reliability, simple wiring, and broad compatibility with aftermarket brackets and charging system components.

Compatible with many Chevrolet, Buick, Pontiac, Oldsmobile, and Cadillac applications, this alternator is commonly used on Small Block Chevy, Big Block Chevy, Buick V8, Pontiac V8, Oldsmobile V8, and Cadillac V8 engine combinations. Popular applications include Chevrolet Camaro, Chevelle, Nova, El Camino, Corvette, C10, Pontiac GTO, Firebird, Trans Am, Buick Skylark, GS, Oldsmobile Cutlass, 442, and many street rod and custom vehicle builds.

Equipped with a V-belt pulley and finished in bright chrome, this alternator combines dependable charging performance with show-quality appearance. Whether you're replacing an aging factory alternator, upgrading a restoration project, adding modern electrical accessories, or converting to a simplified one-wire charging system, this GM 10SI-style alternator provides the performance, reliability, and charging capacity needed for dependable operation.

110 Amp Charging Performance
The 110 amp output provides the charging capacity needed for electric cooling fans, electric fuel pumps, upgraded ignition systems, aftermarket lighting, audio equipment, and other electrical accessories. Increased charging capacity helps maintain stable system voltage under increased electrical demand.

GM 10SI Style Design
Built using the proven GM 10SI alternator platform with an internal voltage regulator and one-wire capable operation. The 10SI design is widely used in muscle cars, street rods, classic trucks, restoration projects, and custom vehicle builds due to its reliability and simplified wiring.

COMPATIBLE WITH:
BUICK BIG BLOCK V8
• 6.6 L / 400 in3
• 7.0 L / 430 in3
• 7.5 L / 455 in3

BUICK SMALL BLOCK V8
• 5.7 L / 350 in3
• CADILLAC V8
• 6.0 L / 368 in3
• 7.0 L / 425 in3
• 7.7 L / 472 in3
• 8.2 L / 500 in3

CHEVROLET FLAT 6
• 2.7 L / 164 in3

CHEVROLET BIG BLOCK V8 GEN. II (MARK IV)
• 6.5 L / 396 in3
• 6.6 L / 402 in3
• 7.0 L / 427 in3
• 7.4 L / 454 in3

CHEVROLET SMALL BLOCK V8 GEN. I
• 4.3 L / 262 in3
• 4.4 L / 267 in3
• 4.9 L / 302 in3
• 5.0 L / 305 in3
• 5.0 L / 307 in3
• 5.3 L / 327 in3
• 5.7 L / 350 in3
• 6.6 L / 400 in3

DETROIT DIESEL INLINE 3
• 2.6 L / 159 in3

GM DIESEL V8
• 6.2 L / 379 in3

GM INLINE 4
• 1.4 L / 85 in3
• 1.5 L / 92 in3
• 1.6 L / 98 in3
• 1.8 L / 112 in3
• 1.9 L / 119 in3
• 2.0 L / 122 in3
• 2.3 L / 140 in3
• 2.5 L / 151 in3

GM INLINE 6
• 4.1 L / 250 in3
• 4.8 L / 292 in3

GM V6
• 2.8 L / 173 in3
• 3.0 L / 181 in3
• 3.2 L / 196 in3
• 3.8 L / 229 in3
• 3.8 L / 231 in3
• 4.1 L / 252 in3
• 4.3 L / 262 in3

ISUZU DIESEL INLINE 4
• 1.8 L / 111 in3
• 2.2 L / 134 in3

OLDSMOBILE DIESEL V8
• 4.3 L / 260 in3
• 5.7 L / 350 in3

OLDSMOBILE V8
• 4.3 L / 260 in3
• 5.0 L / 307 in3
• 5.7 L / 350 in3
• 6.6 L / 400 in3
• 6.6 L / 403 in3
• 7.5 L / 455 in3

PONTIAC V8
• 4.3 L / 265 in3
• 4.9 L / 301 in3
• 5.7 L / 350 in3
• 6.6 L / 400 in3
• 7.0 L / 428 in3
• 7.5 L / 455 in3
Commonly used in many GM vehicles from 1971-1986.

COMMON VEHICLE APPLICATIONS:
1971-1986 GM cars and light trucks; Chevrolet C/K Series; Chevrolet Camaro; Chevrolet Corvette; Chevrolet Chevelle; Chevrolet Monte Carlo; GMC C/K Series; Buick, Oldsmobile, Pontiac, and Cadillac applications using compatible 10SI mounting and wiring.

NOTES:
Verify 10SI case style, mounting ear spacing, pulley alignment, belt type, and one-wire or three-wire wiring requirements before ordering.

SPECIFICATIONS:
AC Service Tap: No
Amperage Rating: 110 A
Brushless: No
Case Circumference: 17.060 in.
Case Color: Silver
Case Material: Aluminum
Distance Between Mounting Feet: 6.610 in.
Drive End To Pulley 1st Groove Distance: 1.970 in.
Drive End To Rotor Shaft End Distance: 1.720 in.
External Fan Included: Yes
External Regulator Included: No
Family: 10SI
Fan Type: External
Finish: Chrome
Ground Type: Case ground
Mounting Configuration Code: 15
Mounting Type: Split Mount
One Wire Capable: Yes
Outside Pulley Diameter: 2.610 in.
Plug Clock Rear View Main Mounting Ear at 6 O Clock: 2 o'clock
Plug Type: 2-pin
Pulley Belt Type: V-belt
Pulley Groove Quantity: 1
Pulley Included: Yes
Regulator Type: Internal
Rotation Direction: Clockwise
Split Mounting Foot Overall Inner Spacing: 6.150 in.
Split Mounting Foot Overall Outside Spacing: 7.150 in.
Terminal Quantity: 3
Voltage: 12 VDC