Vortech Universal Big Block Carbureted System User Manual

Page 3

P/N: 4GA020-030

08DEC08 V3.0(BBC LowMount(4GA..030 V3.0))

iii

Important Installation Notes:

A. This system was designed to fit on engines equipped with a “long” water

pump. Vortech includes a 3-groove assessory drive crank pulley (for use with

a “short” water pump, a custom accessory drive crank pulley and spacer will

be required).

B. For engines equipped with power steering, a remote reservoir (GM “type 2”)

style pump will be required as well as an optional Vortech power steering

pump bracket and pulley assembly. Depending on the vehicle, power steering

lines may require fabrication.

— Power Steering Pump: OE on 1987 GM Pontiac Sunbird, NAPA #20-874

— Vortech Power Steering bracket/pulley assembly: 4GA110-010

The following carbureted system support parts are not included as

part of the system but are available from Vortech:

Optional fuel line/fitting kits for the carburetor. They include custom bent

stainless steel lines, billet-8 bulkhead adapter with fuel pressure port and

plug, -8/-6 junction TEE, aluminum swivel hose ends and USCG

approved fuel hose.

• Vortech #8M110-020 4150 series (w/dual metering blocks), SS fuel line

kit

• Vortech #8M110-030 Demon series, SS fuel line kit

Carburetor air diffuser. Straightens airflow into the carburetor for

improved response/driveability

• Vortech #8M011-001 Ø5.75" x 2.50 tall carburetor air diffuser, stainless

steel

Compressor bypass valve and flange (required on applications exceed-

ing 5 psig boost) (Contact the technical department to determine the

proper valve selection for the application)

• Vortech #8D204-001 Race Bypass Valve

• Vortech #8D004-052 Race Bypass weld-on flange (aluminum)

• Vortech #8D103-001 Mondo Race Bypass Valve

• Vortech #8D003-052 Mondo Race Bypass weld-on flange (aluminum)

• Vortech #8D205-003 BV57 Bypass Valve weld-on flange

• Vortech #8D005-051 BV57 Bypass Valve weld-on flange (aluminum)

Supercharger air inlet ducting (see step 8. in this manual)

Vortech power steering bracket/pulley assembly (see notes above):

#4GA110-010

Items to be supplied by installer/end user:

• Carburetor with mechanical secondaries (4150 Holley/Barry Grant MD

style)

• High performance fuel pump (boost referenced)