Vortech Universal Small Block Chevy Carbureted User Manual

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P/N: 4GP020-015, v3.0, 2012-03-26

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Accessory Drive Notes:

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

and OEM V-belt drives or serpentine accessory drives (OEM TPI/TBI) applica-

tions, 1990-1995 and GM Performance Parts accessory drive system #’s

12497697, 12497698 and 12497869). For correct belt alignment, the proper

accessory drive crank pulley and accessory bracketry must be used. These

components are not supplied in this kit. Earlier models equipped with short

water pumps will require a long water pump to be installed.

• This kit can be used on engines with and without power steering. For engines

equipped with power steering and V-belt accessory drives, a Saginaw type

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

assembly 4GP110-051. This assembly includes all required hardware, tensioner

assembly and anodized billet aluminum pulley. Depending on the vehicle, power

steering lines may require fabrication.

The following carbureted system support parts are not included as part

of the system but are available from Vortech.

Parts applicable to all carbureted system kits:

Compressor bypass valve and flange: (Contact the technical department to deter-

mine 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 Bypass Valve

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

• Vortech #8D205-003: BV57 Bypass Valve

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

Power steering pulley and hardware assembly as described above

• Vortech #4GP110-051: Power Steering Pulley and Hardware Assembly

Parts applicable to "entry level" V3 Si-Trim kits only:

10-rib belt upgrade kits (driven pulley diameter/crank pulley diameter)

• Vortech #8E025-275: 10-Rib Upgrade, 2.75/6, SBC Entry Level

• Vortech #8E025-295: 10-Rib Upgrade, 2.95/6, SBC Entry Level

• Vortech #8E025-312: 10-Rib Upgrade, 3.12/6, SBC Entry Level

IMPORTANT

PRE-INSTALLATION NOTES