
1. GENERAL INFORMATION
The development of engines by HSV has been an ongoing process for many years. Generally, HSV engine
development have been directed at the performance, competition and luxury segments of the market. Engine
developments are continually refined and incorporated in new projects such as the 220 kw engine developments.
As a consequence, engines are continually updated, remain competitive, and are developed for specific
applications. Eac h engine projec t is proven by extensive testing, in var ying environmental conditions , at several test
locations throughout Australia. HSV now has a range of engines to satisfy customer demands extending from luxury
sedans to performance and competition type vehicles. Although these various engines may be fitted with unique
HSV components (such as crankshaft, camshaft, pistons, valve train and the like), assembly procedures, torque
settings, engine diagnosis, valve tim ing procedures and other parameters are the same as for the standard GMHA
product unless stated otherwise in this Supplement. The various HSV engines are discussed in the following
paragraphs.
Engine Dress Covers.
All HSV VT V8 engines are fitted with a set of decorative engine dress covers. A distinctive set of HSV designed
covers encase the fuel rails, throttle body and rockers on each engine. Covers include HSV badges and decals
recessed into the surf ace material of the cove Specific colours are used on the dress covers f or each HSV engine
size, and the identify ing part numbers (and colours) of these covers are as follows:
HSV 195i VT Engines Flame Red
06M-970301B7 COVER ASM-FUEL RAIL RHS
06M-970302B7 COVER ASM-FUEL RAIL LHS
06N-970302B7 COVER ASM THROTTLE BODY
06X-121904B7 COVER ASM VALVE ROCKER LHS
06X-511901B7 COVER ASM VALVE ROCKER RHS
HSV 220i VT Engines Atlas Grey
06M-970301RY COVER ASM-FUEL RAIL RHS
06M-970302RY COVER ASM-FUEL RAIL LHS
06N-970302RY COVER ASM THROTTLE BODY
06X-121904RY COVER ASM VALVE ROCKER LHS
06X-511901RY COVER ASM VALVE ROCKER RHS
Engine Air Induction System.
HSV VT models are fitted with an Engine Air Induction System that incorporates several HSV spec ific co mponents.
Apart from the HSV designed Cold Air Intake System, the air induction system also incorporates a HSV designed
airbox and a spec ific Mass Air Flow (MAF) Sensor. Dif ferent Airbox sens or combinations are f itted to 220 engines.
Both engine variations use the standard Holden filter element and Intake Air Temperature (IAT) Sensor. Service
requirements for the filter are described in the relevant Holden Service Manual Supplement; no field service
adjustm ent is necess ary or possible on the MAF s ensor The HSV airbox is remo ved by gently pulling the box in a
vertical direction to release the locating stud from the integral grommets. The general arrangement of the HSV
Engine Air Induction System, together with HSV replacement part numbers, is shown in Figure E-1.