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EJ20 Performance Engine Parts
| Brand | Part Number | Description |
|---|---|---|
| Pistons (all piston kits include wrist pins, locks, and rings (unless otherwise noted)) | ||
Standard Engine - 75mm crankshaft - 5.137 rod length | ||
| Cosworth | 20003677 | 92mm bore - 75mm stroke - 5.137 rod length - 8.0:1 compression |
| Cosworth | 20003678 | 92.5mm bore - 75mm stroke - 5.137 rod length - 8.0:1 compression |
| Manley | MAN-615000C-4 | 92mm bore - 75mm stroke - 5.137 rod length - 8.5:1 compression |
| Manley | MAN-615005C-4 | 92.5mm bore - 75mm stroke - 5.137 rod length - 8.5:1 compression |
| Manley | MAN-615010C-4 | 93mm bore - 75mm stroke - 5.137 rod length - 8.5:1 compression |
| Supertech | SUP-P4-SU9200-N5 | 92mm bore - 75mm stroke - 5.137 rod length - 8.3:1 compression - Spec C crown - RINGS NOT INCLUDED |
| Supertech | SUP-P4-SU9250-N5 | 92.5mm bore - 75mm stroke - 5.137 rod length - 8.3:1 compression - Spec C crown - RINGS NOT INCLUDED |
| Wiseco | WIS-K588M92 | 92mm bore - 75mm stroke - 5.137 rod length - 8.35:1 compression |
| Wiseco | WIS-K588M925 | 92.5mm bore - 75mm stroke - 5.137 rod length - 8.35:1 compression |
| Wiseco | WIS-K588M93 | 93mm bore - 75mm stroke - 5.137 rod length - 8.35:1 compression |
Stroker Engine - 79mm crankshaft - 5.137 rod length | ||
| Cosworth | 20003685 | 92mm bore - 75mm stroke - 5.137 rod length - 8.5:1 compression |
| Cosworth | 20003687 | 92.5mm bore - 75mm stroke - 5.137 rod length - 8.5:1 compression |
| Manley | MAN-620000C-4 | 92mm bore - 75mm stroke - 5.137 rod length - 8.5:1 compression |
| Manley | MAN-620005C-4 | 92.5mm bore - 75mm stroke - 5.137 rod length - 8.5:1 compression |
| Manley | MAN-620010C-4 | 93mm bore - 75mm stroke - 5.137 rod length - 8.5:1 compression |
| Wrist Pin Upgrade | ||
| Manley | MAN-42546-4 | 9310 Heavy-duty piston wrist pin upgrade (works with most brand pistons) |
| Piston Rings | ||
| Cosworth | 20005160 | Complete set (4) - 92.0mm Ring Set |
| Cosworth | 20005161 | Complete set (4) - 92.5mm Ring Set |
| Cosworth | 20001517 | Complete set (4) - 92.0mm Ring Set - USE WITH STROKER PISTON ONLY |
| Cosworth | 20003605 | Complete set (4) - 92.5mm Ring Set - USE WITH STROKER PISTON ONLY |
| Manley | MAN-46920-4 | Complete set (4) - 92.0mm Ring Set |
| Manley | MAN-46925-4 | Complete set (4) -92.5mm Ring Set |
| Manley | MAN-46930-4 | Complete set (4) -93.0mm Ring Set |
| Supertech | SUP-SWF-20062-0 | 92.0mm Ring Set (1 Piston) |
| Supertech | SUP-SWF-20062-2 | 92.5mm Ring Set (1 Piston) |
| Wiseco | WIS-9200TX | 92.0mm Ring Set (1 Piston) |
| Wiseco | WIS-9250TX | 92.5mm Ring Set (1 Piston) |
| Wiseco | WIS-9300TX | 93.0mm Ring Set (1 Piston) |
| Connecting Rods | ||
| Brian Crower | BC6609 | BC Sportsman H beam - 5.137 rod length - 3/8" ARP 2000 Bolts |
| Brian Crower | BC6608 | BC Sportsman H beam - 5.137 rod length - 3/8" ARP 625+ Bolts |
| Brian Crower | BC6607 | BC I beam - 5.137 rod length - 3/8" ARP 2000 Bolts |
| Brian Crower | BC6606 | BC I beam - 5.137 rod length - 3/8" ARP 625+ Bolts |
| Cosworth | 20002587 | Cosworth H beam - 5.137 rod length - WMC Bolts |
| Eagle | EGL-CRS5137S3D | Eagle H beam connecting rods - 5.137 rod length - 3/8" ARP 2000 Bolts |
| K1 Technologies | K1T-SH5137AJJB4-A | K1 Technologies H beam connecting rods - 5.137 rod length - 3/8" ARP 2000 Bolts |
| Manley | MAN-14024-4 | Manley H beam connecting rods - 5.137 rod length - 3/8" ARP 2000 Bolts - MOST POPULAR |
| Manley | MAN-15024-4 | Manley H TUFF connecting rods - 5.137 rod length - 3/8" ARP 2000 Bolts (stronger version of the classic h beam) |
| Manley | MAN-14024R6-4 | Manley H beam connecting rods - 5.137 rod length - 3/8" ARP 625+ Bolts |
| Manley | MAN-15024R6-4 | Manley H TUFF connecting rods - 5.137 rod length - 3/8" ARP 625+ Bolts (stronger version of the classic h beam) |
| Manley | MAN-14416-4 | Manley Turbo Tuff I beam connecting rods - 5.137 rod length - 3/8" ARP 2000 Bolts |
| Pauter | PAU-SUB-230-510-1315F | Pauter X Beam connecting rods - 5.137 rod length - 3/8" ARP 2000 Bolts |
| Connecting Rod Bolts | ||
| ARP | ARP-260-6302 | ARP 8740 chrome moley connecting rod bolts for STOCK EJ257/255 connecting rods |
| Crankshafts | ||
| Brian Crower | BC5609 | 4340 billet crankshaft - 79mm stroke (Stroker) |
| Cosworth | 20002315 | EN40B steel billet crankshaft - 79mm stroke (Stroker) |
| K1 Technologies | K1T-S750EJ20D | K1 Technologies forged crankshaft - 75mm stroke (EJ20) (STD) |
| K1 Technologies | K1T-S790EJ25D | K1 Technologies forged crankshaft - 79mm stroke (Stroker) |
| Manley | MAN-190160B | Manley 4340 billet crankshaft - 75mm stroke (EJ20) (STD) |
| Manley | MAN-190040B | Manley 4340 billet crankshaft - 79mm stroke (Stroker) |
| Subaru OEM | SUBOEM-12200AA240 | OEM Subaru 75mm crankshaft (05 WRX) (STD) |
| Subaru OEM | SUBOEM-12200AA330 | OEM Subaru 79mm heat treated crankshaft (new STI) (Stroker) |
| Engine Bearings | ||
| ACL | AEB-4B8296H | ACL Race - Connecting rod bearing - EJ20/25 - 52mm Journal (all 02+ WRX/STI) |
| ACL | AEB-4B8296HX | ACL Race - Connecting rod bearing - EJ20/25 - 52mm Journal (all 02+ WRX/STI) - HX SIZED .001 EXTRA CLEARANCE |
| ACL | AEB-5M8309H | ACL Race - Main bearing - EJ20/25 - Thrust position 5 (all 02+ WRX/STI) |
| ACL | AEB-5M8309HX | ACL Race - Main bearing - EJ20/25 - Thrust position 5 (all 02+ WRX/STI) - HX SIZED .001 EXTRA CLEARANCE |
| King | KNG-CR4125XPG | King Tri-Metal Perf - Connecting rod bearing - EJ20/25 - 52mm Journal (all 02+ WRX/STI) |
| King | KNG-MB5382XPG | King Tri-Metal Perf - Main bearing - EJ20/25 - Thrust position 5 (all 02+ WRX/STI) |
| Harmonic Damper | ||
| Fluidampr | FLD-531101 | Street series harmonic damper |
| ATI | 917991 | Super Harmonic Damper |
| Head/Main Studs | ||
| ARP | ARP-260-4701 | ARP DOHC Head Stud Kit |
| ARP | ARP-L19-EJ | ARP L19 Head Stud Kit |
| ARP | ARP-260-4704 | ARP DOHC Custom Age Head Stud Kit (High HP) |
| ARP | ARP-260-5401 | ARP Main Bolts (Block/Case bolts) |
| Cosworth | 20002440 | Cosworth Ultra-High Performance Head Stud Kit - H11 material |
| Cosworth | PR7426 | Cosworth Main Bolts (Block/Case bolts) |
| Head Gaskets (sold individually) | ||
| Cometic | COM-C4261-027 | 93mm bore - 0.027in / .68mm (1) |
| Cometic | COM-C4261-040 | 93mm bore - 0.040in / 1.0mm (1) |
| Cometic | COM-C4261-051 | 93mm bore - 0.051in / 1.3mm (1) |
| Cosworth | 20000919 | 93mm bore - 0.030in / .78mm (1) |
| Cosworth | 20000922 | 93mm bore - 0.043in / 1.1mm (1) |
| JE Pro Seal | JE-SB1000-039 | 94mm bore - 0.039in / 1.0mm (1) |
| JE Pro Seal | JE-SB1000-051 | 94mm bore - 0.051in / 1.3mm (1) |
| Subaru OEM | SUBOEM-11044AA483 | OEM Subaru 02-05 WRX (1) |
| Gasket Kits (does not include exhaust gaskets) | ||
| Subaru OEM | SUBOEM-10105AA351 | 02/Early 03 WRX - OEM Subaru master gasket kit |
| Subaru OEM | SUBOEM-10105AA560 | 03/05 WRX - OEM Subaru master gasket kit |
| Camshafts | ||
EJ20 - 02-05 2.0L WRX Camhafts | ||
| Brian Crower | BC0601 | Stage 2 - duration 272/272 - lift 10.16/10.16 |
| Brian Crower | BC0602 | Stage 3 - duration 280/280 - lift 10.80/10.80 |
| Cosworth | KK3765 | Stage 2 - duration 272/272 - lift 10.0/10.0 |
| GSC | GSC-6020S1 | Stage 1 - duration 270/266 - lift 9.60/9.60 |
| GSC | GSC-6020S2 | Stage 2 - duration 272/272 - lift 10.20/10.20 POPULAR |
| Kelford | KEL-199-B | Stage Stock+ - duration 256/264 - lift 9.35/9.35 (stock turbo/rally) |
| Kelford | KEL-199-C | Stage 1 - duration 268/264 - lift 10.30/10.00 - (300-500hp range) |
| Kelford | KEL-199-E | Stage 2 - duration 274/270 - lift 10.60/10.60 - Suits most builds |
| Kelford | KEL-199-G | Stage 3 - duration 282/282 - lift 10.75/10.75 - Drag cam, suits high rpm, high boost methanol engines. |
| Kelford | KEL-199-J | Race/Rally - duration 264/260 - lift 10.70/10.20 - Race/rally camshafts. High lift, low duration, great throttle response. |
| Kelford | KEL-199-K | Stage 2+ - duration 272/268- lift 11.30/10.50 - Suits most builds - Requires cylinder head modification to fit |
| Kelford | KEL-199-L | Stage 3+ - duration 282/278 - lift 11.50/11.0 - Drag cam, suits high rpm, high boost - Requires cylinder head modification to fit |
Japan / European Spec EJ207 (AVCS Type) | ||
| Cosworth | KK3920 | Stage 2 - duration 278/274 - lift 10.70/10.20 |
| GSC | GSC-6027S1 | Stage 1 - duration 268/266 - lift 10.80/10.20 |
| GSC | GSC-6027S2 | Stage 2 Camshafts - duration 272/272 - lift 10.80/10.20 |
| GSC | GSC-6027S3 | Stage 3 Camshafts - duration 282/282 - lift 11.30/11.30 |
| Kelford | KEL-V2-199-A | Stage 1 - duration 256/260 - lift 9.55/9.50 |
| Kelford | KEL-V2-199-B | Stage 2 - duration 264/260 - lift 10.70/10.20 |
| Kelford | KEL-V2-199-C | Stage 3 - duration 272/268 - lift 11.30/10.50 |
| Kelford | KEL-V2-199-D | Stage 4 - duration 280/278 - lift 11.55/11.0 |
| Springs/Retainer Kits | ||
| Brian Crower | BC0600 | Single spring, titanium retainer kit (Seat: 1.420" @ 80 lbs / Open: 1.000" @ 178 lbs / Coil Bind: 0.850") |
| Brian Crower | BC0600S | Single spring, steel retainer kit (1.420" @ 80 lbs / Open: 1.000" @ 178 lbs / Coil Bind: 0.850") |
| Brian Crower | BC0610 | Single spring, steel retainer, steel seat kit (Seat: 1.325" @ 82 lbs / Open: 0.925" @ 180 lbs / Coil Bind: 0.730") |
| Cosworth | KK3839 | Dual spring, titanium Retainer kit (Ultra-High RPM) |
| GSC | GSC-5743 | Single spring, titanium retainer kit (75lbs @ 1.376" / 195lbs @ 11mm lift) POPULAR |
| GSC | GSC-5043 | Beehive single spring, titanium retainer kit (Seat: 85 lbs @ 1.369" (34.8mm) / 225lbs @.433" (11mm) / Coil bind @ .550" (14mm)) POPULAR |
| Kelford | KEL-KVS1847-BT | Beehive single spring, titanium retainer kit (Seat: 105lb @ 36.00mm installed height / Coil bind @ 23.00mm / 12.00mm maximum lift) |
| Manley | MAN-26180 | Single spring, titanium retainer kit (Seat: @ 60 @ 1.420" / Open: @ 151 @ 1.050" - 187 @ .895" / Max Lift .525" / Coil Bind @ .845") POPULAR |
| Manley | MAN-26185 | Beehive single spring, titanium retainer kit (Seat: @ 95 @ 1.420" / Open: @ 217 @ 1.050" / 257 @ .930" / Max Lift .490" / Coil Bind .880") |
| Supertech | SUP-SPRK-TS1015_SU1 | Dual spring, titanium Retainer kit (70 @ 35.5mm) - MOST POPULAR |
| Valve Springs (ONLY) | ||
| Cosworth | 20000166 | High RPM Single Valve Spring set |
| Kelford | KEL-KVS109-STi | High RPM Single Valve Spring set |
| Valves | ||
| Brian Crower | BC3600 | Complete set (8) - 36.0mm Intake - Stainless - (STD) |
| Brian Crower | BC3601 | Complete set (8) - 32.0mm Exhaust - Stainless - (STD) |
| Brian Crower | BC3604 | Complete set (8) - 37.0mm Intake - Stainless - (+1mm Oversize) |
| Brian Crower | BC3605 | Complete set (8) - 33.0mm Exhaust - Stainless - (+1mm Oversize) |
| Cosworth | SB0034 | Single (1) - 37.0mm Intake - Stainless - (+1mm Oversize) |
| Cosworth | SB0033 | Single (1) - 33.0mm Exhaust - Inconel - (+1mm Oversize) |
| GSC | GSC-2011-8 | Complete set (8) - 36.0mm Exhaust - 21-4N material Black Nitride - (STD) |
| GSC | GSC-2012-8 | Complete set (8) - 32.0mm Intake - 23-8N material Black Nitride - (STD) |
| GSC | GSC-2013-8 | Complete set (8) - 37.0mm Intake - 21-4N material Black Nitride - (+1mm Oversize) |
| GSC | GSC-2014-8 | Complete set (8) - 33.0mm Exhaust - 23-8N material Black Nitride - (+1mm Oversize) |
| GSC | GSC-2011-1 | Single (1) - 36.0mm Intake - 21-4N material Black Nitride - (STD) |
| GSC | GSC-2012-1 | Single (1) - 32.0mm Exhaust - 23-8N material Black Nitride - (STD) |
| GSC | GSC-2013-1 | Single (1) - 37.0mm Intake - 21-4N material Black Nitride - (+1mm Oversize) |
| GSC | GSC-2014-1 | Single (1) - 33.0mm Exhaust - 23-8N material Black Nitride - (+1mm Oversize) |
| Manley | MAN-11138-8 | Complete set (8) - 36.0mm Intake - Stainless - (STD) |
| Manley | MAN-11155-8 | Complete set (8) - 32.0mm Exhaust - Stainless - (STD) |
| Manley | MAN-11137-8 | Complete set (8) - 32.0mm Exhaust - Xtreme Duty - (STD) |
| Manley | MAN-11140-8 | Complete set (8) - 37.0mm Intake - Stainless - (+1mm Oversize) |
| Manley | MAN-11171-8 | Complete set (8) - 33.0mm Exhaust - Stainless - (+1mm Oversize) |
| Manley | MAN-11139-8 | Complete set (8) - 33.0mm Exhaust - Xtreme Duty - (+1mm Oversize) |
| Supertech | SUP-SIVN-1010 | Single (1) - 36.0mm Intake - Stainless Black Nitride - (Order 8 per car) - (STD) - POPULAR |
| Supertech | SUP-SEVN-1010 | Single (1) - 32.00mm Exhaust - Stainless Black Nitride - (Order 8 per car) - (STD) - POPULAR |
| Supertech | SUP-SEVI-1010 | Single (1) - 32.00mm Exhaust - Inconel (Heavy duty) - (Order 8 per car) - (STD) - POPULAR |
| Supertech | SUP-SIVN-1012_2 | Single (1) - 36.50mm Intake - Stainless Black Nitride - (Order 8 per car) - (STD) |
| Supertech | SUP-SEVN-1012_2 | Single (1) - 32.50mm Exhaust - Stainless Black Nitride - (Order 8 per car) - (STD) |
| Supertech | SUP-SEVI-1012_2 | Single (1) - 32.50mm Exhaust - Inconel (Heavy duty) - (Order 8 per car) - (STD) |
| Supertech | SUP-SIVN-1014_2 | Single (1) - 37.0mm Intake - Stainless Black Nitride - (Order 8 per car) - (STD) |
| Supertech | SUP-SEVN-1014_2 | Single (1) - 33.0mm Exhaust - Stainless Black Nitride - (Order 8 per car) - (STD) |
| Supertech | SUP-SEVI-1014_2 | Single (1) - 33.0mm Exhaust - Inconel (Heavy duty) - (Order 8 per car) - (STD) |
| Valve Locks (Keepers) | ||
| Brian Crower | BC2960 | 6 degree Billet Keepers / Locks (32 pieces - complete set) |
| Valve Guides | ||
| Brian Crower | BC3960 | Complete set (8) intake valve guide |
| Brian Crower | BC3961 | Complete set (8) exhaust valve guide |
| Supertech | SUP-GDE-SUEJ6-E | Single (1) exhaust valve guide (Order 8 per motor) |
| Supertech | SUP-GDE-SUEJ6-I | Single (1) intake valve guide (Order 8 per motor) |
| GSC | GSC-3025-8 | Complete set (8) exhaust valve guide w/ depth stopper |
| GSC | GSC-3026-8 | Complete set (8) intake valve guide w/ depth stopper |
| GSC | GSC3027-8 | Complete set (8) exhaust valve guide w/ traditional |
| GSC | GSC3028-8 | Complete set (8) intake valve guide w/ traditional |
| Valve Seals | ||
| GSC | GSC-1022 | Complete set (16) intake/exhaust valve seals |
| Supertech | SUP-VS-TS6-E | Single (1) exhaust valve seal (Order 8 for per motor) |
| Supertech | SUP-VS-TS6-I | Single (1) intake valve seal (Order 8 for per motor) |
| Timing Kits/Belts | ||
Timing belts ONLY | ||
| Gates | GAT-T328RB | Kevlar reinforced racing timing belt - (blue color) |
| Gates | GAT-T328 | OEM Grade timing belt - (black color) |
| Cosworth | 20004953 | Kevlar reinforced racing timing belt - (blue color) |
| HKS | HKS-24999-AF001 | Kevlar reinforced racing timing belt - (purple color) |
| Timing belt kits | ||
| Gates | TCKWP328A | 02/03 - Complete timing belt kit including belt, all pulleys, gear, tensioner and water pump (OEM grade black timing belt) |
| Gates | TCKWP328ARB | 02/03 - Complete timing belt kit including belt, all pulleys, gear, tensioner and water pump (Racing timing belt blue color) |
| Gates | TCKWP328B | 04/05 - Complete timing belt kit including belt, all pulleys, gear, tensioner and water pump (OEM grade black timing belt) |
| Gates | TCKWP328BRB | 04/05 - Complete timing belt kit including belt, all pulleys, gear, tensioner and water pump (Racing timing belt blue color) |
| Gates | TCK328A | 02/03 - Timing belt kit including belt, all pulleys, gear, tensioner - NO water pump (OEM grade black timing belt) |
| Gates | TCK328 | 04/05 - Timing belt kit including belt, all pulleys, gear, tensioner - NO water pump (OEM grade black timing belt) |
| Timing belt guides | ||
| Cosworth | SB0001 | Billet Timing Belt Guide |
| Torque Solutions | TS-SU-010 | Billet Timing Belt Guide |
| Accessory Belts | ||
| Gates | GAT-K040353RB | A/C Belt (blue color) |
| Gates | GAT-K050345RB | Alternator & Power Steering Belt (blue color) |
| Water Pump | ||
| Gates | GAT-43548 | Gates Water Pump |
| Thermostat | ||
| Mishimoto | MSH-MMTS-WRX-01 | 68C Degree racing thermostat |
| Subaru OEM | SUBOEM-21200AA072 | OEM Subaru thermostat |
| Oil Pumps | ||
| ACL | AEB-OPSB1478HP | Orbit Performance Oil Pump |
| Cosworth | KK3928 | Blueprinted Oil Pump-w/ High Pressure Mod & Install Kit |
| Cosworth | 20001185 | High Volume/Pressure Blueprinted Oil Pump & install Kit |
| Subaru OEM | SUBOEM-15010AA360 | OEM Subaru 11mm (2008+ STI) oil pump - MOST POPULAR |
| Oil Control | ||
| Cosworth | 20002499 | Oil Control Baffle |
| Killer B Motorsport | KLR-EJ25Pan | High Performance Oil Pan - Requires EJ25 oil pickup or Killer B pickup |
| Killer B Motorsport | KLR-EJ25P-P | High Performance Oil Pan & oil pickup combo |
| Killer B Motorsport | KLR-EJ25P-B | High Performance Oil Pan & oil baffle combo |
| Killer B Motorsport | KLR-PPBC | High Performance Oil Pan, oil baffle, oil pickup combo (Ultimate duty) |
| Killer B Motorsport | KLR-070-110 | Ultimate oil pickup (EJ25) |
| Killer B Motorsport | KLR-OPB | Ultimate oil pickup (EJ25) & oil baffle combo |
| Killer B Motorsport | KLR-EJWT | Oil Baffle Windage Tray |
| Lubricants | ||
| Redline | RDL-80319 | Liquid Engine Assembly Lube (12oz) |
| ARP | ARP-100-9908 | Ultra Torque Assembly Lube - .50oz packet |
| ARP | ARP-100-9909 | Ultra Torque Assembly Lube - 1.69 oz Tube |
| Motul | MOT-2810QTA | 5W40 Engine break in oil |
| Motul | MOT-103132 | 5W40 - POWER - 300V Engine oil (highly recommended) |
| Motul | MOT-102784 | 5W40 - 8100 X-cess Engine oil |
| Subaru OEM | SUBOEM-004403007 | Subaru OEM Super Three Bond 1215 (Subabond) Tube (Sealant for block halves, oil pump etc) |
| Spark Plugs | ||
| NGK | NGK-6418 | Stock heat range iridium spark plugs (sold invidually (1)) - BKR6EIX |
| NGK | NGK-2667 | One (1) heat range colder iridium spark plugs (sold invidually (1)) - BKR7EIX |
| NGK | NGK-2668 | Two (2) heat range colder iridium spark plugs (sold invidually (1)) - BKR8EIX |
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Tel. (631) 363-8659