Ignition System - Chevrolet Performance CT400 Especificacion Técnica De Producto

Additional parts that may be needed:

Ignition System:

Chevrolet recommends the HEI distributor, Chevrolet part number 93440806, for use on this engine package. The HEI
distributor is properly curved for this application and comes with a melonized drive gear. You must use a hardened
(melonized) drive gear that is compatible with a steel camshaft. Use of a non-hardened distributor gear will result in
excessive wear.
The HEI system requires a 12-volt power supply for proper operation. The HEI ignition system should be connected
directly to the battery with 10 or 12 gauge wire through a high quality ignition switch. lf you are installing an HEI ignition
in an early-model vehicle originally equipped with a point-type ignition, be sure to remove or bypass the resistor in the
wiring harness to ensure the HEI receives 12 volts continuously. Use distributor connector package Chevrolet part
number 12167658, which includes connectors and wires for the HEl's tachometer and 12 volt terminals.
Set spark timing at 32° before top dead center (BTDC) at 4000 rpm with the vacuum advance line to the distributor
disconnected and plugged. This setting will produce 32° of total advance at wide-open throttle (WOT). NOTE: While
the HEI distributor also has vacuum advance capability, the vacuum advance canister should be plugged for racing
applications.
Carburetor / Air Cleaner:
A model 4150 HP, 650-cfm Holley four-barrel carburetor Chevrolet part number 19170097 is recommended for use on
the CT400 engine. The recommended carburetor jetting for this application is #73 primary jets, and #73 secondary jets.
A minimum air cleaner height of 3 inch tall and a diameter of 14 inches, Chevrolet part numbers 12342071 and
12342080, is recommended for this carbureted circle track engine. A 4 inch tall filter element, Chevrolet part number
8997189, is also available, if enough hood clearance exists.
Water Pump & Cooling System
Two different water pumps are recommended for use on the CT400 engine, depending on the application. A long leg,
cast iron water pump is available as Chevrolet part number 88894341. A short leg, cast iron water pump is available
as Chevrolet part number 12458924. To ensure the durability of this circle track crate engine, the engine operating
temperature should be kept between 180° and 200° F.
TITLE CT400 Circle Track Racing Engine Specifications
ALL INFORMATION WITHIN ABOVE BORDER TO BE PRINTED EXACTLY AS SHOWN ON 8 1/2 x 11
WHITE 16 POUND BOND PAPER. PRINT ON BOTH SIDES, EXCLUDING TEMPLATES.
TO BE UNITIZED IN ACCORDANCE WITH GM SPECIFICATIONS.
88960586
REV 20NO17
PART NO.
DATE
24MR14 Initial Release - Randy Gallagher
20NO17 Revision - Jim Covey
5
SHEET
REVISION
33
OF
AUTH
N/A
N/A