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Stocked With More Power

Our stock replacement cylinder heads live up to EQ’s reputation for quality parts and incredible service. This assures you of the highest value and quality in cast cylinder heads and aluminum cylinder heads for Chevy, Chrysler, Ford, Isuzu, Mazda, Nissan, Mitsubishi and Toyota vehicles. In fact, if you’re ready to replace a worn out or cracked cylinder head, you won’t find a better product available anywhere.

Bare castings are available for your assembly with new components.

All this, and the best warranty in the business.

EQ offers many different replacement cylinder heads for industrial forklift applications, including Chrysler/Mitsubishi, Mazda, Nissan and Toyota.

Our latest catalog includes specifications for all the cylinder heads we carry for these vehicle.

  • AMC
  • Chevrolet
  • Chrysler
  • Ford
  • Isuzu
  • Jeep
  • Mazda
  • Mitsubishi
  • Nissan
  • Toyota

What Makes an EQ Cylinder Head better than the rest?

  • Highest grade of material used in manufacturing
  • Thicker decks for greater strength
  • Superior port finish for increased flow
  • Improved flow design to resist cracking
  • Redesigned water flow for greater thermal conductivity
  • Hardened exhaust seats
  • CNC machined guides and seats
  • 3 angle valve finish
  • Parts and labor warranty * (complete details: http://www.aamidwest.com/enginequest/warranty/ )
  • 25 point quality check on every head
  • Assembled heads use OE quality stainless steel valve, springs, retainers, keepers and viton seals.
  • Assembly of bare cylinder head casting should be done by qualified machine shop

EQ Cylinder Heads are the only cylinder heads in the aftermarket with a limited 1 yr. parts and labor warranty on stock replacement applications.

Updated as of 06/06/2017

AMC / JEEPCIDLiterYears Notes
CH150N1502.51987 - 2002Replaces casting numbers: 2403, 117 1/2' Head Bolt
CH150NA1502.51987 - 2002Replaces casting numbers: 2403, 117
1/2' Head Bolt
ASSEMBLED
CH226LN2253.72002 - 2004LEFT HEAD / drivers side Replaces casting numbers: 53020983, 53020983AB With EGR hole. Block-off kit included
CH226RN2253.72002 - 2004RIGHT HEAD / passenger side Replaces casting numbers: 53020984, 53020984AB
CH227LN2253.72005 - 2012LEFT HEAD / drivers side Replaces casting numbers: 53020983AD, 53020983AC With EGR hole. Block-off kit included
CH227RN2253.72005 - 2012RIGHT HEAD / passenger side Replaces casting numbers: 53020984AC
CH242N24241998 - 2006331 casting
CH242NA24241998 - 2006331 casting - ASSEMBLED
CH281LN2874.71999 - 2008LEFT HEAD / drivers side Replaces casting numbers: 53020801AC, 53020803
CH281RN2874.71999 - 2008RIGHT HEAD / passenger side Replaces casting numbers: 53020802, 53020804
CH318A3185.21992 - 2003Replaces casting numbers: 53005714, 53006671, 53020466, 53020468 172cc Intake Runner -  62cc Combustion Chamber
CH318AA3185.21992 - 2003Replaces casting numbers: 53005714, 53006671, 53020466, 53020468
172cc Intake Runner - 
62cc Combustion Chamber  
ASSEMBLED

CHEVROLETCIDLiterYearsNotes
CH134N1342.21990 - 1997391 / 391S - 7MM VALVE GUIDE ID
CH134NA1342.21990 - 1997391 / 391S -ASSEMBLED
CH151N1512.51989 - 199110044642 CAST IRON
CH305B30551996 - 2002Replaces casting numbers: 12552520, 12557113, 12558059 ‑ intake runner 170CC combustion chamber 58CC Angle spark plug
CH305BA30551996 - 2002Replaces casting numbers:
12552520, 12557113, 12558059 ‑
intake runner 170CC 
combustion chamber 58CC
Angle spark plug
ASSEMBLED
CH350A3505.71955 - 1986Universal Intake runner 178CC Combustion Chamber 76CC With Heat Riser / 69-86 Intake manifold bolt pattern 7 bolt hole exhaust mounting Angle spark plug  Perimeter valve cover mounting holes
CH350AA3505.71955 - 1986Universal
Intake runner 178CC
Combustion Chamber 76CC
With Heat Riser / 69-86 Intake manifold bolt pattern
7 bolt hole exhaust mounting
Angle spark plug 
Perimeter valve cover holes
ASSEMBLED 
CH350H3505.71969 - 1986Replaces casting number:
14101083, 14096217, 14102191, 14102193 
Intake runner 176CC
Combustion Chamber 64CC Vortec style
With Heat Riser / 69-86 Intake manifold bolt pattern
Perimeter valve cover holes
Angle spark plug 
Recommended to be replaced in pairs.
CH350HA3505.71969 - 1986Replaces casting number:
14101083, 14096217, 14102191, 14102193 
Intake runner 176CC
Combustion Chamber 64CC Vortec style
With Heat Riser / 69-86 Intake manifold bolt pattern
Perimeter valve cover holes
Angle spark plug 
Recommended to be replaced in pairs.
ASSEMBLED 
CH350G3505.71987 - 1995Replaces casting number:
14101083, 14096217, 14102191, 14102193 
Intake runner 176CC
Combustion Chamber 64CC Vortec style
With Heat Riser / 87 95 Intake manifold bolt pattern
Center bolt down valve cover holes
Angle spark plug 
Recommended to be replaced in pairs.
CH350GA3505.71987 - 1995Replaces casting number:
14101083, 14096217, 14102191, 14102193 
Intake runner 176CC
Combustion Chamber 64CC Vortec style
With Heat Riser / 87 95 Intake manifold bolt pattern
Center bolt down valve cover holes

Angle spark plug 
Recommended to be replaced in pairs.
ASSEMBLED
CH350C3505.71996 - 2006Replaces casting number 12558062, 10239906, Intake runner 170CC Combustion Chamber 64CC  Straight spark plug 
CH350CA3505.71996 - 2006Replaces casting number 12558062, 10239906, 
Intake runner 170CC 
Combustion Chamber 64CC 
Straight spark plug
ASSEMBLED 
CH350I3505.7PERFORMANCEIMCA SANCTIONED SPORT MOD HEAD Intake runner 178CC Combustion Chamber 76CC 69-86 Intake manifold bolt pattern 7 bolt hole exhaust mounting Perimeter valve cover holes Angle spark plug  With Heat Riser
CHLSBLNKLS Porter Blank
CH395N3816.21990 - 199510137567  ­ 90º INTAKE BOLTS
CH395B3956.51992 - 199910137567  ­ 60º INTAKE BOLTS
CH395N3956.51992 - 199910137567  ­ 90º INTAKE BOLTS
CH402A4026.62004 - 2006DURAMAX - VIN 2  LLY
CH402B4026.62006 - 2007DURAMAX - VIN D  LBZ
CH454A4547.4PERFORMANCERECTANGULAR PORT Intake runner 320CC Combustion Chamber 119CC
CH454B4547.4PERFORMANCERECTANGULAR PORT Intake runner 360CC Combustion Chamber 119CC
CH454C4547.4  1996 - 2000
Universal
Replaces casting number 12560241, 10141279 246cc Intake Runner -  100cc Combustion Chamber / Vortec Chamber (.370/.3716 valve id) Direct replacement for 1996- 2000 / When installing on 1996 and earlier models, must use Bolt Down Rocker Arms and Head Gasket by Felpro # 1017 or equivalent 
CH454CA4547.4  1996 - 2000Replaces casting number 12560241, 10141279
246cc Intake Runner - 
100cc Combustion Chamber /
Vortec Chamber (.370/.3716 valve id)
Direct replacement for 1996- 2000
ASSEMBLED 
CH502A5028.2MARINE / PERFORMANCECAST IRON Replaces casting # 14097088 Intake runner 299CC Combustion Chamber 118CC

CHRYSLERCIDLiterYearsNotes
CH123N199721983 - 19914G63 12 VALVE WITH FUEL PUMP HOLE
CH124N199721990 - 19924G63 - 8 VALVE WITH FUEL PUMP HOLE
CH124NA199721990 - 19924G63 - 8 VALVE WITH FUEL PUMP HOLE
ASSEMBLED
CH143A23502.41993 - 19994G64  - 8 VALVE - SOHC
CH143AA23502.41993 - 19994G64  - 8 VALVE - SOHC
ASSEMBLED
CH154N25552.61981 - 19904G54B 8 VALVE - SOHC
CH226LN2253.72002 - 2004LEFT HEAD / drivers side Replaces casting numbers: 53020983, 53020983AB With EGR hole. Block-off kit included
CH226RN2253.72002 - 2004RIGHT HEAD / passenger side Replaces casting numbers: 53020984, 53020984AB
CH227LN2253.72005 - 2012LEFT HEAD / drivers side Replaces casting numbers: 53020983AD, 53020983AC With EGR hole. Block-off kit included
CH227RN2253.72005 - 2012RIGHT HEAD / passenger side Replaces casting numbers: 53020984AC
CH281LN2874.71999 - 2008LEFT HEAD / drivers side Replaces casting numbers: 53020801AC, 53020803 With EGR hole. Block-off kit included
CH281RN2874.71999 - 2008RIGHT HEAD / passenger side Replaces casting numbers: 53020802, 53020804
CH318A3185.21992 - 2003Replaces casting numbers: 53005714, 53006671, 53020466, 53020468 172cc Intake Runner -  62cc Combustion Chamber
CH318AA3185.21992 - 2003Replaces casting numbers: 53005714, 53006671, 53020466, 53020468
172cc Intake Runner - 
62cc Combustion Chamber  
ASSEMBLED
CH318B3185.2PERFORMANCEWITH LA STYLE INTAKE BOLT PATTERN Replaces casting numbers: 53005714, 53006671, 53020466, 53020468 172cc Intake Runner -  62cc Combustion Chamber  
CH318BA3185.2PERFORMANCEWITH LA STYLE INTAKE BOLT PATTERN
Replaces casting numbers: 53005714, 53006671, 53020466, 53020468
172cc Intake Runner - 
62cc Combustion Chamber  
ASSEMBLED
CH318A3605.91992 - 2003Replaces casting numbers: 53005714, 53006671, 53020466, 53020468 172cc Intake Runner -  62cc Combustion Chamber
CH318AA3605.91992 - 2003Replaces casting numbers: 53005714, 53006671, 53020466, 53020468
172cc Intake Runner - 
62cc Combustion Chamber  
ASSEMBLED
CH318B3605.9PERFORMANCEWITH LA STYLE INTAKE BOLT PATTERN Replaces casting numbers: 53005714, 53006671, 53020466, 53020468 172cc Intake Runner -  62cc Combustion Chamber
CH318BA3605.9PERFORMANCEWITH LA STYLE INTAKE BOLT PATTERN
Replaces casting numbers: 53005714, 53006671, 53020466, 53020468
172cc Intake Runner - 
62cc Combustion Chamber  
ASSEMBLED
CH359N3595.91999 - 200224V VALVE L6 DIESEL CASTING # 3943627 / 6BT CUMMINS - DESIGNED TO USE WITH NON-SLOTTED TYPE INJECTORS

FORDCIDLiterYearsNotes
CH121N12122000 - 2003YS4E-EA - SOHC
CH121NA12122000 - 20034YSE-EA - SOHC - ASSEMBLED
CH140A1402.31995 - 1997Replaces casting numbers: F57E, F87E, F5JL DUAL SPARK PLUG
CH140AA1402.31995 - 1997Replaces casting numbers: F57E, F87E, F5JL
DUAL SPARK PLUG - ASSEMBLED
CH140A1522.51998 - 2001Replaces casting numbers: F57E, F87E, F5JL DUAL SPARK PLUG
CH140AA1402.31995 - 1997Replaces casting numbers: F57E, F87E, F5JL
DUAL SPARK PLUG - ASSEMBLED
CH244C24441998 - 200098TM
CH244CA24441998 - 200098TM  - ASSEMBLED
CH300A3004.91987 - 1996E7TE – WITH SMOG – WITH EXHAUST SEATS
CH300AA3004.91987 - 1996E7TE - WITH SMOG – WITH EXHAUST SEATS - ASSEMBLED
CH300B3004.91987 - 1996E7TE - NO SEAT INSERTS WITH SEAT POCKETS
CH415ND4156.82008 - 2016V10 3 Valve Drivers Side – 12mm spark plug – Replaces casting numbers: 5C3E
CH415NP4156.82008 - 2016V10 3 Valve Passenger Side- – 12mm spark plug– Replaces casting numbers: 5C3E

ISUZUCIDLiterYearsNotes
CH138N1382.31986 - 19954ZD1
CH156NE2559cc2.61988 - 19964ZE1 – Round shaped combustion chamber -
ASSEMBLED
CH156NEA2559cc2.61988 - 19964ZE1 – Round shaped combustion chamber
CH156NL2559cc2.61997 - 19974ZE1 – Heart shaped combustion chamber
CH156NLA2559cc2.61997 - 19974ZE1 – Heart shaped combustion chamber -
ASSEMBLED

JEEPCIDLiterYearsNotes
CH150N1502.51987 - 2002Replaces casting numbers: 2403, 117 1/2' Head Bolt
CH150NA1502.51987 - 2002Replaces casting numbers: 2403, 117
1/2' Head Bolt
ASSEMBLED
CH226LN2253.72002 - 2004LEFT HEAD / drivers side Replaces casting numbers: 53020983, 53020983AB With EGR hole. Block-off kit included
CH226RN2253.72002 - 2004RIGHT HEAD / passenger side Replaces casting numbers: 53020984, 53020984AB
CH227LN2253.72005 - 2012LEFT HEAD / drivers side Replaces casting numbers: 53020983AD, 53020983AC With EGR hole. Block-off kit included
CH227RN2253.72005 - 2012RIGHT HEAD / passenger side Replaces casting numbers: 53020984AC
CH242N24241998 - 2006331 casting
CH242NA24241998 - 2006331 casting - ASSEMBLED
CH281LN2874.71999 - 2008LEFT HEAD / 53020801AC, 53020803
CH281RN2874.71999 - 2008RIGHT HEAD / 53020802, 53020804
CH318A3185.21992 - 2003Replaces casting numbers: 53005714, 53006671, 53020466, 53020468 172cc Intake Runner -  62cc Combustion Chamber  
CH318AA3185.21992 - 2003Replaces casting numbers: 53005714, 53006671, 53020466, 53020468
172cc Intake Runner - 
62cc Combustion Chamber  
ASSEMBLED
CH318B3185.2PERFORMANCEWITH LA STYLE INTAKE BOLT PATTERN Replaces casting numbers: 53005714, 53006671, 53020466, 53020468 172cc Intake Runner -  62cc Combustion Chamber  
CH318BA3185.2PERFORMANCEWITH LA STYLE INTAKE BOLT PATTERN
Replaces casting numbers: 53005714, 53006671, 53020466, 53020468
172cc Intake Runner - 
62cc Combustion Chamber  
ASSEMBLED
CH318A3605.91992 - 2003Replaces casting numbers: 53005714, 53006671, 53020466, 53020468 172cc Intake Runner -  62cc Combustion Chamber  
CH318AA3605.91992 - 2003Replaces casting numbers: 53005714, 53006671, 53020466, 53020468
172cc Intake Runner - 
62cc Combustion Chamber  
ASSEMBLED

MAZDACIDLiterYearsNotes
CH122A199821983 - 1987FE - SOHC
CH122AA199821983 - 1987FE - ASSEMBLED
CH122A21842.21987 - 1993F2 - SOHC
CH122AA21842.21987 - 1993F2 - ASSEMBLED
CH140A1522.51998 - 2001Replaces casting numbers: F57E, F87E, F5JL DUAL SPARK PLUG
CH140AA1402.31995 - 1997Replaces casting numbers: F57E, F87E, F5JL
DUAL SPARK PLUG - ASSEMBLED
CH157N2606cc2.61989 - 1994G6
CH157NA2606cc2.61989 - 1994G6 - ASSEMBLED

NISSANCIDLiterYearsNotes
CH121I19822INDUSTRIALH20-II / H25
CH121IA19822INDUSTRIALH20-II / H25 - ASSEMBLED
CH152N1262.1INDUSTRIALK21 / K25
CH152NA1262.1INDUSTRIALK21 / K25 - ASSEMBLED
CH146N1462.41983 - 1989Z24

TOYOTACIDLiterYearsNotes
CH132N199821997 - 20013SFE - 16 VALVE DOHC WITHOUT DISTRIBUTOR HOLE WITH CAM SENSOR
CH136N199821984 - 19853YEC - 8 VALVE OHV
CH136NA199821984 - 19853YEC - 8 VALVE OHV - ASSEMBLED
CH132N21642.21997 - 20015SFE - 16 VALVE DOHC WITHOUT DISTRIBUTOR HOLE WITH CAM SENSOR
CH136N22372.21986 - 19894YEC
CH136NA22372.21986 - 19894YEC - ASSEMBLED
CH144N1442.41985 - 199522R, 22REC
CH144NA1442.41985 - 199522R, 22REC - ASSEMBLED - NO CAM
CH164B24382.41997 - 20002RZFE – DOHC 16 VALVES – 8 PORT– includes distributor andcam sensor block-offs
CH164B26942.71994 - 20003RZFE - DOHC 16 VALVES – 8 PORT– includes distributor andcam sensor block-offs
CH164A26942.72005 - 20132TRFE - DOHC
CH164AA26942.72005 - 20132TRFE - DOHC - ASSEMBLED - NO CAM

INDUSTRIAL / FORKLIFT

Manufacturer Description
FORDCH300AE7TE – WITH SMOG – WITH EXHAUST SEATS
FORDCH300AAE7TE - WITH SMOG – WITH EXHAUST SEATS – ASSEMBLED
FORDCH300BE7TE - NO SEAT INSERTS WITH SEAT POCKETS
MAZDACH122AAFE/F2 HEAD COMPLETE-NEW - ASSEMBLED
MAZDACH122AFE/F2 HEAD BARE-NEW
MITSUBISHICH154NA4G54 HEAD COMPLETE-NEW - ASSEMBLED
MITSUBISHICH154N4G54 HEAD BARE-NEW
MITSUBISHICH124NA4G63 HEAD COMPLETE-NEW - ASSEMBLED
MITSUBISHICH124N4G63 HEAD BARE-NEW
MITSUBISHICH143AA4G64 HEAD COMPLETE-NEW - ASSEMBLED
MITSUBISHICH143A4G64 HEAD BARE-NEW
NISSANCH152NANISSAN K21 / K25 - ASSEMBLED
NISSANCH152NNISSAN K21 / K25
NISSANCH121IANISSAN H20-II - ASSEMBLED
NISSANCH121INISSAN H20-II
TOYOTACH136NA4Y HEAD COMPLETE-NEW - ASSEMBLED
TOYOTACH136N4Y HEAD BARE-NEW

HEAD GASKET SETS

Manufacturer   Description
ISUZUGS4GZ12559ccGS4ZE11988-1997
MAZDAGSFE-F21998FE - 2.01983-1987
MAZDAGSFE-F22184F2 - 2.21987-1993
MAZDAGSG62606ccG6 - 2.61989-1994
MITSUBISHIGSG642350cc4G64 - 2.41993-1999
NISSANGSK21N126K21 / K25 - 2.1INDUSTRIAL
TOYOTAGS4Y2237cc4Y / 4YEC 2.21986-1989
TOYOTAGS22R14422R , 22REC - 2.41985-1995

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