Chevy 1987-1997 V8 (305-454) EFI Distributor

Direct-Replacement EFI Distributor for 1987–1995 Chevrolet and GMC V8 Trucks, Vans, and SUVs

If your 1987–1995 Chevrolet or GMC C/K truck, Suburban, or full-size van is experiencing ignition misfires, erratic timing, or hard starts on a 305, 350, or 454 V8 EFI engine, a failing distributor is one of the most common causes on these platforms. This TSP distributor is engineered as a direct-replacement unit for the factory computer-controlled distributor used in GM's TBI and TPI EFI V8 applications from 1987 through 1995 — restoring accurate ECM signal control and reliable spark delivery without reprogramming or additional ignition modules.

Built around a magnetic pick-up trigger and a male terminal connector, this distributor integrates directly with the factory EFI wiring harness and ECM on compatible non-Vortec applications. Computer-controlled advance means the ECM manages ignition timing — no mechanical or vacuum advance tuning is required. The machined aluminum housing and steel gear are built for long-term durability in daily-driven trucks and working vehicles.

No ignition box is required. An external coil is needed and is not included. Verify distributor gear material compatibility with your camshaft before installation — the steel gear is most compatible with cast iron hydraulic and solid flat-tappet camshafts.

 

Applications
Compatible with Chevrolet Small Block V8 Gen. I (5.0L / 305 CID and 5.7L / 350 CID) and Chevrolet Big Block V8 Gen. II Mark IV and Gen. V (7.4L / 454 CID) in non-Vortec EFI applications. Primary year range: 1987–1995. For 1996–1997, application is limited to one-ton G and P series vans only — not compatible with 1996–1997 Vortec-equipped trucks or SUVs. Confirmed common vehicle applications include Chevrolet C/K 1500, C/K 2500, C/K 3500, and Suburban; GMC Sierra and Suburban.

COMPATIBLE WITH
CHEVROLET BIG BLOCK V8 GEN. II (MARK IV)
• 7.4 L / 454 in³

CHEVROLET BIG BLOCK V8 GEN. V
• 7.4 L / 454 in³

CHEVROLET SMALL BLOCK V8 GEN. I
• 5.0 L / 305 in³
• 5.7 L / 350 in³

NOTES
• Direct factory replacement for computer-controlled TBI/TPI distributor from 1987–1997.
• The 454 was used through 1997 in one-ton G-Series and P-Series vans only; all other 454 applications ended by 1995.
• Not compatible with Vortec port-injected applications (1996 and newer trucks and SUVs).
• Requires factory EFI and PCM — not for carbureted or standalone ignition conversions.
• Steel distributor gear — verify compatibility with camshaft material before installation.

COMMON VEHICLE APPLICATIONS
Chevrolet Camaro (305/350, 1987–1992)
Chevrolet Corvette (350 TPI, 1987–1991)
Chevrolet Caprice / Impala SS (305/350, 1987–1993)
Chevrolet C/K 1500 / 2500 / 3500 (305/350/454, 1987–1995)
Chevrolet Suburban (350/454, 1987–1995)
Chevrolet Blazer / K5 Blazer (305/350, 1987–1994)
Chevrolet Tahoe / Yukon (350, 1992–1995)
Chevrolet G-Series Van (305/350/454, 1987–1997)
Chevrolet P-Series Van (350/454, 1987–1997)
GMC Sierra / C/K 1500 / 2500 / 3500 (305/350/454, 1987–1995)
GMC Suburban (350/454, 1987–1995)
GMC Jimmy (305/350, 1987–1991)
Buick Roadmaster (350, 1991–1993)
Cadillac Brougham / Fleetwood (350, 1990–1992)
Pontiac Firebird / Trans Am (305/350, 1987–1992)

SPECIFICATIONS
Trigger Type: Magnetic Pick-Up
Advance Type: Computer-Controlled
Color: Available in Red, Black
Terminal Gender: Male
Mechanical Tach Drive: No
Slip Collar: No
Coil Included: No
Coil Type: External
Housing Material: Machined Aluminum
Gear Material: Steel
Ignition Box Required: No
Marine Use: No
Cylinders: 8