About this product
The TSP Super Cap HEI Distributor for the Chevy SBC and BBC is a large-cap HEI ignition upgrade for the Gen. I Chevrolet small block V8 (262–400 CID) and the standard-deck Mark IV big block V8 (396, 402, 427, and 454 CID) in carbureted applications. The Super Cap design features a larger diameter cap than the standard HEI, providing greater physical spacing between the eight spark plug wire terminals. Wider terminal spacing reduces the risk of crossfire — where high voltage arcs to an adjacent terminal — and provides additional clearance for routing plug wire boots around the cap.
This distributor features a hardened steel distributor gear, brass terminal construction, and a 65,000-volt integrated HEI coil. Distributor rotation is clockwise. Both mechanical and vacuum advance are included, with a vacuum advance adjustment tool shipped with the distributor. No external coil, ignition box, or condenser is required — the only external connection is a single 12-volt hot wire.
Not compatible with tall-deck big block engines, governor-equipped applications, LS or Gen. III/IV engines, or EFI systems. Requires a 12-volt electrical system with an alternator. Not compatible with 6-volt systems, generators, or ballast resistors.
Super Cap
The Super Cap is a larger diameter HEI cap with greater spacing between the eight terminal positions. The increased spacing reduces the risk of high-voltage crossfire between adjacent terminals and provides additional physical room for 90-degree plug wire boots around the cap.
COMPATIBLE WITH
CHEVROLET SMALL BLOCK V8 GEN. I
• 4.3 L / 262 in³
• 4.3 L / 265 in³
• 4.4 L / 267 in³
• 4.6 L / 283 in³
• 4.9 L / 302 in³
• 5.0 L / 305 in³
• 5.0 L / 307 in³
• 5.4 L / 327 in³
• 5.7 L / 350 in³
• 6.6 L / 400 in³
CHEVROLET BIG BLOCK V8 GEN. II (MARK IV) — STANDARD DECK ONLY
• 6.5 L / 396 in³
• 6.6 L / 402 in³
• 7.0 L / 427 in³
• 7.4 L / 454 in³
NOTES
• Fits Chevrolet Gen. I small block and Gen. II (Mark IV) standard deck big block V8 engines.
• Not compatible with tall deck big block engines (366ci, tall deck 427ci truck engines).
• Not compatible with engines using a governor.
• Distributor gear is most compatible with cast iron hydraulic or solid flat tappet camshafts; consult cam manufacturer for recommended gear material.
• This distributor is designed for a 12 volt electrical system with an alternator.
• It is not compatible with a generator and cannot be used with a ballast resistor.
COMMON VEHICLE APPLICATIONS
Chevrolet Camaro (1967–1981)
Chevrolet Chevelle / Malibu / El Camino (1964–1977)
Chevrolet Nova (1966–1979)
Chevrolet Impala / Bel Air / Biscayne (1955–1976)
Chevrolet Corvette (1955–1982)
Chevrolet Monte Carlo (1970–1977)
Chevrolet C/K Trucks (1955–1987)
GMC C/K Trucks (1955–1987)
SPECIFICATIONS
Advance Adjustable: Yes
Advance Type: Centrifugal (Mechanical) And Vacuum
Cap Color: Available in Black, Blue, Red, Clear
Cap Style: Super Cap
Centrifugal Advance Adjustment Hardware Included: No
Coil Wire Included: No
Distributor Cap Included: Yes
Gear Material: Hardened Steel
Grade Type: Performance
Housing Material: Aluminum
Ignition Box Required: No
Ignition Coil Included: Yes
Ignition Coil Output: 65000 V
Ignition Rotor Included: Yes
Marine Approved: No
Mechanical Tachometer Drive: No
Rotor Rotation: Clockwise
Shaft Material: Steel
Slip Collar: No
Terminal Gender: Male
Terminal Material: Brass
Terminal Quantity: 8
Trigger Type: Magnetic
Vacuum Advance Adjustment Tool: Included
Coil Type: Internal
Description supplied by Top Street Performance through its current Shopify listing. Product, performance, and health claims are the seller’s and have not been independently verified by StorkScout.
