Chicago Facility: (800) 826-7403 / (773) 624-6111     |     Las Vegas Facility: (800) 426-8771 / (702) 649-7776

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 04/20/2018

AMC / JEEPCIDLiterYears 
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
CH242N2424.01998 - 2006331 casting
CH242NA2424.01998 - 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
CH262N2624.31992 - 2014Vortec design 8 bolt intake
Replaces casting # 12557113
CH262NA2624.31992 - 2014Vortec design 8 bolt intake
Replaces casting # 12557113 - ASSEMBLED
CH364A2944.82001 - 2015Replaces casting numbers: 3317
CH364AA2944.82001 - 2015Replaces casting numbers: 3317 - ASSEMBLED
CH364B2944.82001 - 2015Replaces casting numbers: 243 / 799
CH364BA2944.82001 - 2015Replaces casting numbers: 243 / 799- ASSEMBLED
CH364C2944.82001 - 2015Replaces casting numbers: 5364 / 821 / 823
CH364CA2944.82001 - 2015Replaces casting numbers: 5364 / 821 / 823- ASSEMBLED
CH305B3055.01996 - 2002Replaces casting numbers:
12552520, 12557113, 12558059 ?
intake runner 170CC
combustion chamber 58CC
Angle spark plug
CH305BA3055.01996 - 2002Replaces casting numbers:
12552520, 12557113, 12558059 ?
intake runner 170CC 
combustion chamber 58CC
Angle spark plug 
 ASSEMBLED
CH364A3235.32001 - 2015Replaces casting numbers: 3317
CH364AA3235.32001 - 2015Replaces casting numbers: 3317 - ASSEMBLED
CH364B3235.32001 - 2015Replaces casting numbers: 243 / 799
CH364BA3235.32001 - 2015Replaces casting numbers: 243 / 799- ASSEMBLED
CH364C3235.32001 - 2015Replaces casting numbers: 5364 / 821 / 823
CH364CA3235.32001 - 2015Replaces casting numbers: 5364 / 821 / 823- 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
CH364A3646.02001 - 2015Replaces casting numbers: 3317
CH364AA3646.02001 - 2015Replaces casting numbers: 3317 - ASSEMBLED
CH364B3646.02001 - 2015Replaces casting numbers: 243 / 799
CH364BA3646.02001 - 2015Replaces casting numbers: 243 / 799- ASSEMBLED
CH364C3646.02001 - 2015Replaces casting numbers: 5364 / 821 / 823
CH364CA3646.02001 - 2015Replaces casting numbers: 5364 / 821 / 823- ASSEMBLED
CH364A3816.22001 - 2015Replaces casting numbers: 3317
CH364AA3816.22001 - 2015Replaces casting numbers: 3317 - ASSEMBLED
CH364B3816.22001 - 2015Replaces casting numbers: 243 / 799
CH364BA3816.22001 - 2015Replaces casting numbers: 243 / 799- ASSEMBLED
CH364C3816.22001 - 2015Replaces casting numbers: 5364 / 821 / 823
CH364CA3816.22001 - 2015Replaces casting numbers: 5364 / 821 / 823- ASSEMBLED
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
CH123N19972.01983 - 19914G63 12 VALVE WITH FUEL PUMP HOLE
CH124N19972.01990 - 19924G63 - 8 VALVE WITH FUEL PUMP HOLE
CH124NA19972.01990 - 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
CH121N1212.02000 - 2003YS4E-EA - SOHC
CH121NA1212.02000 - 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
CH244C2444.01998 - 200098TM
CH244CA2444.01998 - 200098TM  - ASSEMBLED
CH330ND2814.62008 - 20103L3E, 9L3E
Drivers / Left Head, SOHC
3 Valve. 12mm Spark Plug Threads
CH330NP2814.62008 - 20103L3E, 9L3E
Passenger / Right Head, SOHC
3 Valve. 12mm Spark Plug Threads
CH300A3004.91987 - 1996E7TE, E6TE, E5TE - WITH SMOG - WITH EXHAUST SEATS
CH300AA3004.91987 - 1996E7TE, E6TE, E5TE - WITH SMOG - WITH EXHAUST SEATS - ASSEMBLED
CH300B3004.91987 - 1996E7TE, E6TE, E5TE - NO SEATS -
Pocket cut size:
Exhaust = 1.600 +/-  .005 diameter  /  Depth .140 +/-  .005
Intake = 1.690 +/-   .005 diameter   /   Depth .140 +/-  .005
CH300A + GPK63004.91982 - 1986E4TE, D2TE - WITH SMOG use GPK6 to convert to bolt down rocker arm studs
CH300AA + GPK63004.91982 - 1986E4TE, D2TE - WITH SMOG use GPK6 to convert to bolt down rocker arm studs - ASSEMBLED
CH330ND3305.42008 - 20143L3E, 9L3E
Drivers / Left Head, SOHC
3 Valve. 12mm Spark Plug Threads
CH330NP3305.42008 - 20143L3E, 9L3E
Passenger / Right Head, SOHC
3 Valve. 12mm Spark Plug Threads
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
CH242N2424.01998 - 2006331 casting
CH242NA2424.01998 - 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
CH122A19982.01983 - 1987FE - SOHC
CH122AA19982.01983 - 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
CH121I19822.0INDUSTRIALH20-II / H25
CH121IA19822.0INDUSTRIALH20-II / H25 - ASSEMBLED
CH152N1262.1INDUSTRIALK21 / K25
CH152NA1262.1INDUSTRIALK21 / K25 - ASSEMBLED
CH146N1462.41983 - 1989Z24
CH146A2389CC2.41998 - 2004KA24DE - DOHC Replaces casting # F45
Frontier & Xterra

TOYOTACIDLiterYearsNotes
CH132N19982.01997 - 20013SFE - 16 VALVE DOHC WITHOUT DISTRIBUTOR HOLE WITH CAM SENSOR
CH136N19982.01984 - 19853YEC - 8 VALVE OHV
CH136NA19982.01984 - 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 and cam sensor block-offs
CH164B26942.71994 - 20003RZFE - DOHC 16 VALVES – 8 PORT– includes distributor and cam sensor block-offs
CH164A26942.72005 - 20132TRFE - DOHC
CH164AA26942.72005 - 20132TRFE - DOHC - ASSEMBLED - NO CAM

INDUSTRIAL / FORKLIFT

Manufacturer CIDLiters Part # Description
CHEVROLET2624.3CH262NVortec design 8 bolt intake
Replaces casting # 12557113
CHEVROLET2624.3CH262NAVortec design 8 bolt intake
Replaces casting # 12557113 - ASSEMBLED
CHEVROLET3505.7CH350CReplaces casting number 12558062, 10239906,
Intake runner 170CC
Combustion Chamber 64CC 
Straight spark plug 
CHEVROLET3505.7CH35CAReplaces casting number 12558062, 10239906, 
Intake runner 170CC 
Combustion Chamber 64CC 
Straight spark plug
ASSEMBLED 
FORD 3004.9 CH300AE7TE - WITH SMOG - WITH EXHAUST SEATS
FORD 300 4.9CH300AAE7TE - WITH SMOG - WITH EXHAUST SEATS - ASSEMBLED
FORD 300 4.9CH300BE7TE, E6TE, E5TE - NO SEATS -
Pocket cut size:
Exhaust = 1.600 +/-  .005 diameter  /  Depth .140 +/-  .005
Intake = 1.690 +/-   .005 diameter   /   Depth .140 +/-  .005
MAZDA  CH122AAFE/F2 HEAD COMPLETE-NEW - ASSEMBLED
MAZDA  CH122AFE/F2 HEAD BARE-NEW
MITSUBISHI  CH154NA4G54 HEAD COMPLETE-NEW - ASSEMBLED
MITSUBISHI  CH154N4G54 HEAD BARE-NEW
MITSUBISHI  CH124NA4G63 HEAD COMPLETE-NEW - ASSEMBLED
MITSUBISHI  CH124N4G63 HEAD BARE-NEW
MITSUBISHI  CH143AA4G64 HEAD COMPLETE-NEW - ASSEMBLED
MITSUBISHI  CH143A4G64 HEAD BARE-NEW
NISSAN  CH152NANISSAN K21 / K25 - ASSEMBLED
NISSAN  CH152NNISSAN K21 / K25
NISSAN  CH121IANISSAN H20-II - ASSEMBLED
NISSAN  CH121INISSAN H20-II
TOYOTA  CH136NA4Y HEAD COMPLETE-NEW - ASSEMBLED
TOYOTA  CH136N4Y HEAD BARE-NEW

HEAD GASKET SETS

Manufacturer CIDLiters Part # Description
ISUZUGS4ZE12559cc4ZE1 - 2.61988-1997
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
TOYOTAGS22R14422R22REC - 2.4, 1985-1995

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