Vortech Universal Big Block Carbureted System User Manual
Page 3
P/N: 4GA020-030
©2008 Vortech Engineering, LLC
All Rights Reserved, Intl. Copr. Secured
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:
1.
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
2.
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
3.
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)
4.
Supercharger air inlet ducting (see step 8. in this manual)
5.
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)