Crank Trigger Distributor Chevy V8 Super Tall Block

Name: Crank Trigger Distributor Chevy V8 Super Tall Block
Brand: MSD IGNITION
SKU: 121-8486
Price: 519.95 USD
Availability: InStock

^$519⁹⁵

3 left in stock

Ships on Nov 02, 2026

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Chevy w/Crab Cap HEI-Style

Chevy V8 Super Tall Block
With Crab Cap

Built for racing engines and equipped with a special low-profile crab style distributor cap.
Features:
Designed to fit low in the block to clear firewall and intake combinations
Adjustable slip collar for engines with modified deck heights
0.500" taller for extra tall Chevrolet based engine blocks
Special oil tract improves lubrication to the distributor and cam gear
O-ring seals can be added to modified blocks to improve oil pressure control
Supplied with small, low crab style distributor cap, rotor and bronze gear
Must be used with an MSD Crank Trigger and MSD 6, 7 or 8-Series Ignition Control
Note: Not legal for sale or use on pollution-controlled vehicles.
Designed to fit low in the block to clear firewall and intake combinations
Must be used with an MSD Crank Trigger and MSD Ignition Control
Supplied with small, low crab style distributor cap, rotor and bronze gear
O-ring seals can be added to modified blocks to improve oil pressure control
Special oil tract improves lubrication to the distributor and cam gear
Shaft is guided by a sealed ball bearing and an extra long sintered bushing
Oversized polished steel shaft with a QPQ coating for friction reduction

Distributors Geared for Racing

MSD Ignition Crank Trigger distributors are designed for racing engines that use a crankshaft triggered ignition. A low profile lets these distributors fit in tight quarters and still accurately deliver the sparks. Each crank trigger distributor contains a CNC-machined billet aluminum housing and inside the housing, a sealed ball bearing and long sintered bushing, guide a QPQ-coated shaft for accurate spark delivery throughout high rpm. A low profile distributor cap with brass terminals clamps onto the housing and covers the racing rotor. The rotor contains deep vanes to stir up the air; reducing the chance of spark scatter. Since these distributors are for racing applications, bronze gears are supplied. Must be used with an MSD Crank Trigger and MSD 6, 7 or 8-Series Ignition Control

Part TypeDistributor

Product LineMSD Ignition Crank Trigger Distributors

BrandMSD IGNITION

Package Height6.8

Package Width7.0

Package Length19.0

Weight4.12 PG

Part CategoryPerformance Parts

Marine UseNo

Housing FinishNatural

Housing Materialbillet aluminum

Ignition Box RequiredYes