Listing applies to all GM Jcars and Ncars (Grand Am Turbo 2.0) that use the 1.8 And 2.0 OHC Brazilian Opel engine. Also the 1.6 And 2.0 Pontiac Le Mans engine- please inquire on 1.6 Engine parts prices- they may fluctuate due to availability. (2.0 OHV push rod engines used in the Cavs & Beretta are listed in the 2.0/2.2 OHV Engine section.)

GS 1130 H.D. Clutch Assembly: H.D. Pressure plate and disk for use with stock or sports flywheel. Good for hard street and light competition use. Specify 1.8, 2.0 OHC Jcar, 1.6 Or 2.0 Le Mans.

GS 1131 Sports Flywheel: Lightened, reground and rebalanced to better than OEM specs. Good for street and sports use. Gives nice response and smoother shifting too. Price includes a refundable $50 core return fee. Specify 1.8, 2.0 OHC Jcar, 1.6 Or 2.0 Le Mans.

GS 1132 Competition Flywheel: Extensively lightened, reground shot peened and precisely rebalanced for off road and racing use only. Price includes a refundable $50 core return fee. Specify 1.8, 2.0 OHC Jcar, 1.6 Or 2.0 Le Mans.

GS 1132R Special Racing Flywheel: Specially machined racing flywheel for using the small diameter 7 1/4" metallic racing clutch assembly. This is a race only conversion and requires other mods to the transaxle & special release bearing to use.

GS 1133 Racing Clutch Assembly: Special 7 1/4" diameter sintered metallic disk. Ultra strong and light, for race use only. (Specify 1.8 Or 2.0 OHC: fittings for Le Mans 1.6 & GSE 2.0 Also.) GS 1132R Flywheel also required.

GS 1134 Competition Clutch Assembly: Special Sachs German disk and aluminum pressure plate. Not street advised- has stock bolt pattern. Specify 1.8, 2.0 J-car, 1.6 Or 2.0 Le Mans.

GS 1146 Short Shifter Assembly: Modified shorter throw shift assembly for the 5 speed Isuzu-equipped cars.

GS 1147 Short Shifter Assm: Modified shorter throw shift assembly for the 5 speed Getrag-equipped cars.

GS 1148 Adjustable Cam Timing Sprocket: Special degreed camshaft sprocket drive gear for adjusting camshaft timing. Specify year and 1.6, 1.8 Or 2.0 OHC engine (Including Le Mans GSE).

GS 1149H Sports Hydraulic Camshaft: Excellent for stock or mildly modified 1.8 Or 2.0 OHC Engines. Almost identical to European GSI cams used in Vauxhall And Opels. Good low and mid-range power with good drivability. Must be used with new stock or our gs 1160 cam followers( Fits all 1.8 & 2.0 Ohc motors).

GS 1149L Sports Hydraulic Camshaft: Excellent for stock or mildly modified 1.6 Le Mans engines. Almost identical to European cams used in Vauxhall and Opels. Good low and mid-range power with good drivability. Must be used with new stock or our GS 1160 cam followers.

GS 1150 Sports Performance Cam: Sports Hydraulic camshaft that provides more lift and duration for more upper range power. Must be used with GS 1155 sports springs and GS 1160 followers. Only for use with highly modified fuel injection or with one or two carburetor conversions. Increased compression ratio and other intake and exhaust mods are also advised. (Fit 1.8 & 2.0 OHC motors) inquire for more advanced 1.6 profiles, we can provide them on special order.

GS 1151 Rally/Autocross Cam: This performance cam has high lift with increased duration for optimum mid-range power and pull where more power and good acceleration are needed. Again this requires highly modified engines with either special programmable injection mods, or special ignition and carb setups. Fits all 1.8 & 2.0 OHC motors (Requires GS 1160 with GS 1155 or GS 1158 valve springs).

GS 1152 Road Race Camshaft: All-out race cam with 300-degree duration and .500" lift. This cam requires increased compression ratio, cylinder head work and racing engine preparation setup. Track only-for use with highly modified fuel injection (OP 1661S) or with one or two carburetor conversions. GS 1158 Racing Dual Valve Springs And GS 1160 Followers must be used for maximum reliability under racing conditions. (Fits all 1.8 & 2.0 OHC motors).

**ANYTIME YOU REMOVE THE CAM HOUSING/ CYL. HEAD ON THE 1.6, 1.8 & 2.0 OHC ENGINES**
It is highly recommended that you use new cylinder head/cam housing bolts when reinstalled-torque carefully to factory specs, and use new head gasket and cam housing sealant. Get bolts from any GM dealer or Mantapart.

GS 1153H H.D. Hydraulic Cam Follower Lifters: These 8 new special pedestal lifters support the cam followers and allow higher rpm use without loss of tension or valve float on modified engines: use GS 1160 units also with any new cams.

***NOTE: WE WILL NOT WARRANTY ANY OF OUR CAMS INSTALLED WITHOUT NEW GS 1153 LIFTERS & GS 1160 FOLLOWERS!

GS 1153* Solid Cam Follower Pedestal: These custom adjustable pedestals allow the use of special race-only cam profiles instead of the stock hydraulic lifter pedestals that are prone to failure at excessive high rpm use. (Inquire about cam profiles and machine work required on the head for their use).

GS 1154 Sports Valve Springs: Set of 8 slightly stiffer valve springs for use with higher lift cams and high rpm use on street and sports- specify 1.8 Or 2.0 OHC engines.

GS 1155 Sports Valve Springs: Set of 8 slightly stiffer valve springs for high rpm use on street and sports 1.6 Le Mans OHC engines.

GS 1156 Sports Valve Spring Retainers: Set of 8 stronger and lighter Chrome Moly spring retainers for stock or sports single valve springs. Specify 1.6, 1.8 Or 2.0 Engine. (Also require GS 1156S Shims for use).

GS 1156S Special Top Shims: This set of 8 hardened shims are required for use with the GS 1156 sports retainers. Available at .100" Or .125" thickness to adjust cam ramp angles. Fit 1.6, 1.8 and 2.0 Engines.

GS 1156T Racing Valve Spring Retainers: Strongest and lightest Titanium Spring retainers (Set of 8) for use with our GS 1158 Dual Race Springs. These are the ultimate for racing reliability. Specify 1.8 Or 2.0 Engine. (Also require GS 1156S Shims for use).

GS 1157 Sports Valve Train Package: Contains set of 8 GS 1154/55 Sports Springs, GS 1156 Sports Retainers and GS 1156S Shims for either 1.8 Or 2.0 OHC. Buy them all together and save a little.

GS 1158 Dual Competition Valve Springs: Set of 8 dual valve springs for competition use with prolonged high rpm use. These allow both higher lift cams and much higher RPM limits to your engine. (These require either GS 1156 or GS 1159/T Retainers and special GS 1158B Ext. Spring bases.) Specify either 1.8 Or 2.0 Engine.

GS 1158B Dual Spring Seat Bases: Set of 4 intake & 4 exhaust spring bases for our dual valve springs- Must be used to center the springs properly, specify 1.6, 1.8 or 2.0 OHC engine.

GS 1159 Competition Retainers: These Chrome Moly retainers are required to use special GS 1158 Dual Springs on competition engines where you don't need the cost of Titanium. These are a strong and lightweight design, specify 1.6, 1.8 or 2.0 OHC engine. Need special GS 1156 shims, also. (GS 1156T Titanium also available for optimum performance and reliability).

GS 1160 Special Cam Followers: These stronger units are recommended for any sports or high RPM engine, and are required to insure proper break-in when installing new sports camshaft in any engine. Available for 1.6, 1.8 and 2.0 OHC engines.

*WE HAVE A NUMBER OF SPECIAL SOLID PROFILE RACE CAMSHAFTS FOR USE WITH OUR SPECIAL ADJUSTABLE PEDESTAL- BUT THEY ARE COMPLEX & COSTLY FOR ALL BUT FULL RACING ENGINES. (REQUIRE OUR SPECIAL GS 1153 PEDESTALS & MACHINE WORK TO HEAD FOR USE- ALSO VERY TIME CONSUMING FOR LASH ADJUSTMENT.) INQUIRE FOR DETAILS.

GS 1161C Sports Computer "Chip" For O.H.C Engines: Slightly modified fuel and spark curves for better performance with stock or GS 1149 Cam engines. May not meet legal emissions standards in some states. Fits stock computer ecu box, specify year, engine, transmissions, etc.- 1.8 And 2.0 Units available.

GS 1161T Performance T.B.I. Units: Improved fuel flow for better performance and power. Available for most years and models- specify when ordering. Require slight engine adjustments for best performance, GS 1149 and other mods are also recommended.

GS 1161 Programmable Electronic Ignition System: This is a completely adjustable electronic ignition system that is required to convert the fuel injection system when you change to carburetion for your engine. Works off distributor pulses and gives adjustable spark curve, spark retard and rev limit adjustability. Comes with new coil pack and all sensors, hardware, etc.

GS 1162 H.D. Performance Head Gasket: These have been race tested at over 12:1 compression ratio, and work great on either injected, supercharged or turbo engines. Special silicone beading to prevent oil or water leakage if gasket breaks down too. Specify 1.8 Or 2.0 engine when ordering.

GS 1163 Special Kamax 12.9K Rod Bolts For 2.0 OHC Engine: Set of 8 special German bolts have the ultimate strength for all-out racing engines, highly recommended for high compression or hot turbo engines. (1.8 Engine rod bolts/nuts are already 12.9K strength).

GS 1164 Sports Connecting Rods: Polished, lightened and shot-peened for optimum reliability in any modified engine. Set of 4 rods, complete with new bolts. These are great for most mild performance applications, for all out racing or very high HP and turbo applications we suggest the billet rods. Specify 1.8 Or 2.0 Engine.

GS 1164R Racing Billet Rods: These are a set of 4 purpose-made alloy steel rods for racing engines. Prepared with special high-tensile strength alloy steel and bolts. Also bushed to float wrist pins, cannot be used with stock press-fit pistons/pins. These are race quality for high compression or turbo and supercharger applications. (Rods for stock press fit pins can be made by special order).

GS 1165 Sports Cylinder Head: Completely ported, polished and flowed head, with all new sports springs and retainers, polished valves, competition valve job, and assembled with special seals. Ready to install- for 1.8 Or 2.0 Engines.

GS 1165R Competition Cylinder Head: Completely modified as GS 1165, but more extensive porting for racing, with GS 1158 Dual Springs and GS 1159 Retainers, our stainless steel valves and bronze wall guides, too.

GS 1166 Performance Valves: Stock valves polished and flowed and undercut for optimum performance. Available for 1.6, 1.8 Or 2.0 Engines.

GS 1166S Stainless Performance Valves: These are custom made with high strength stainless steel for higher reliability and better flow for performance and racing use. Specify 1.6, 1.8 or 2.0 Engine.

GS 1167 Mahle Sports Pistons: The best quality German:built pistons for the OHC engines, a must for performance engine rebuilds and classes where you cant run forged pistons. Complete with special rings and H.D. wrist pins, in a number of sizes and compression ratios for the 1.6, 1.8, and 2.0 OHC engines. Inquire.

GS 1168 Forged Racing Pistons: Specially made forged alloy aluminum pistons for maximum strength and light weight racing applications. Low expansion alloy allows tighter clearance engines too. We have compression ratios from turbo to high compression racing, 85mm bore and larger, with racing rings and tool steel wrist pin sizes- inquire before you order for technical advise to suit your engine and usage. Available for 1.6, 1.8 or 2.0 OHC- these require 4-6 weeks special order for non-spec applications. We stock a number of the popular sizes and compression ratios.

GS 1169 Performance Rings: Special alloy rings for use in racing and performance applications. Different types and sizes available for stock 1.6, 1.8 and 2.0 OHC and aftermarket pistons. Inquire for your specific needs.

GS 1170 1.8 OHC Competition Windage Tray: Specially designed by Mantapart for 1.8 OHC engines when we developed them for IMSA racing. Comes with new oil pan, gasket and oil drain down modification instructions for competition use. (2.0 Has stock windage tray that is quite good).

GS 1171 Performance Crankshaft: Extensively lightened with contoured counterweights, Nitrided, rebalanced and with special oil modifications for all-out competition use. Specify 1.6, 1.8 or 2.0 OHC engine.

GS 1530 Power Pulley Setup: This kit includes both lightweight billet aluminum crank and alternator pulleys with a new serpentine belt. Frees up lost power and gives more throttle response too. Works fine with stereo equipped cars, doesn't effect charging output. Specify 1.6, 1.8, or 2.0 OHC engine.

GS 1172 Performance Main & Rod Bearing Set: Highest quality Clevite material for high performance and turbo engines. Set includes all main bearings and 4 rod bearings. Sizes std. to .020". Specify 1.6, 1.8, or 2.0 OHC engine.

GS 1173 Performance Intake Manifold: Special aluminum manifold to fit either small Holley/Weber 2-Barrel progressive carb. Specify 1.8 Or 2.0 Engines- these are competition only, and require mods to both ignition <GS 1161> and engine for proper results. (Order GS 1173B for intake with large Holley 350 and 500 CFM 2:barrel bolt pattern carbs).

GS 1174 Intake Manifold Adaptor: Specially made aluminum plate to fit 2.0 liter intake manifold system to the 1.8 Cylinder head. (1.8 Head conversion to 2.0 engine also gives more compression ratio & power.) Mods to fuel system & ignition may be needed to compensate.

GS 1175 Dual Weber Intake Manifold: Special cast aluminum intakes to fit two 40-48DCOE Weber side draft carbs to the 1.8 Engine. Requires engine and ignition system mods- recommended for competition use only. (Order GS 1176K for entire kit with carbs, linkage and air cleaners).

GS 1176 Dual Weber Intake Manifold: Special cast aluminum intakes to fit two 40-48DCOE Weber side draft carbs to the 2.0 Engine. Requires engine and ignition system mods: recommended for competition use only. (Order GS 1176K for entire kit with carbs, linkage and air cleaners).

GS 1780 Big Bore Throttle Body: This is a modified throttle body for the 2.0 MPFI engines only. Extensively modified to give a 56mm bore that will supply enough air for your modified sports engines. Exchange only, a $50 refundable core charge is included in the price.

GS 1177 Tubular Exhaust Headers: Special fabricated equal length headers, with collector, gaskets and hardware kit. Includes 02 sensor bung also. Specify 1.8 Or 2.0 and what chassis & transaxle type. Available in ceramic coat also.

GS 1178 Sports Exhaust System: Sporty sounding cat back exhaust system made with 2 1/4' mandrel bent tubing. Includes dual chrome tip resonator muffler and all mounting hardware. Specify 1.6, 1.8 Or 2.0 with chassis & transaxle type info.

GS 1179 Sports Rear Muffler: Dual chrome tipped free flow rear muffler for all J & T-car chassis. Specify year, model and body style.