Checker Marathon Valve Cover and Cylinder Heads

ARP only uses premium grade 8740 alloy and a proprietary ARP2000 alloy that are rated for superior to “aircraft” quality alloy steels. Secondly, each stud is placed vertically into special racks and precisely heat-treated to 200,000 psi for the 8740 material and 220,000 psi for the ARP2000 material. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best. 

Product Features:

• 1/2″ 12-Point, 3/16″ Allen Socket Size(s)
• 8740 Chromoly
• Black Oxide
• Small Block Chevy
• Sold As A Kit

The Edelbrock #5845 Replacement Hydraulic Roller Sure Seat Valve Spring for Edelbrock cylinder heads are made of highest quality spring wire and precision wound to close tolerances.

Product Features:

• Non-Rotator Type
• 1.460 in. Outer Diameter
• 1.060 in. Inner Diameter
• 1.060 in. Coil Blind
• Set of 16

The Edelbrock #5825 Replacement Sure Seat Valve Spring for Edelbrock #5085, 60759, 60909, 60719, 60739, 60999, 60899 & 79899 cylinder heads are made of highest quality spring wire and precision wound to close tolerances.

Product Features:

• Non-Rotator Type
• 1.460 in. Outer Diameter
• Made In The USA
• Single Coil Spring Type
• Set of 16

Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:

• Unsurpassed quality that you can trust
• Uses leading edge materials
• State-of-the-art manufacturing
• Exacting tolerances
• Meets or exceeds OEM specifications

Product Features:

• Valve Seats
• Performer Series
• 50-State Street Legal

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• PROPRIETARY COATING – Nonstick anti-friction coating seals small surface imperfections

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• PROPRIETARY COATING — Nonstick anti-friction coating seals small surface scratches and imperfections
• SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
• NO RETORQUE DESIGN — Steel core helps eliminate the need for retorquing head bolts
• STRONG AND DURABLE — Features graphite or reinforced fiber facing material and steel armor for strength and durability
• DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• PROPRIETARY COATING — Nonstick anti-friction coating seals small surface scratches and imperfections
• SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
• NO RETORQUE DESIGN — Steel core helps eliminate the need for retorquing head bolts
• STRONG AND DURABLE — Features graphite or reinforced fiber facing material and steel armor for strength and durability
• DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces

If you have ever installed a rocker stud into a cylinder head and watched it wobble as it screwed in, you knew from the beginning that the rocker geometry was going to be inconsistent all over the place. ARP rocker studs are concentric within 0.005 T.I.R. thread pitch to thread pitch. They run in straight and true. Lengths are exact designed to provide positive seating every time. An extra large radius base offers greater resistance to flex. Available in both High Performance and Pro Series models. To be used with ARP patented Perma Loc(TM) adjusters.

Product Features:

• Made Of 8740 Chrome Moly Forgings
• Heat Treated To 180,000 PSI
• Excellent For Elapsed Time Bracket Racing, Limited Rule Oval Track Competition And Street Use
• Lengths Are Exact Designed To Provide Positive Seating Every Time
• Set of 16
• .800″ Adjuster Thread Length
• 3/8-24 Shank Diameter and Thread
• 3/8″ Typical Small Block Application

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Engineered and manufactured specifically for the repair environment
• Unsurpassed quality you can trust
• Includes all parts needed to complete the repair

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• PROPRIETARY COATING – Nonstick anti-friction coating seals small surface scratches and imperfections

Our unique Multi-Layered steel head gasket embossment formation process optimizes the embossment radius, reduces stress points, enhances gasket conformability, and provides uniform clamp load distribution. This all results in superior surface contact between block and cylinder head. All head gasket layers/spacers go through an additional process to significantly reduce forming induced stress. Advantages are reduced brittleness in material, increased flexibility and deformation retention. This stabilizes the gasket, resulting in reduced cylinder bore distortion and improved combustion seal fro the extreme cylinder pressures found in high compression, supercharged and turbocharged applications. A proprietary polymer coating ensures the micro-seal of engine coolant and oil fluids. A typical MLS head gasket requires a smoother (30Ra) surface finish than composite head gaskets. Mr. Gasket’s proprietary polymer coating will seal a surface finish twice as rough (60Ra) as a typical MLS head gasket. For high performance street, drag race and oval track use.

Product Features:

• Gasket bore – 4.035 inch: Compressed thickness – .040 inch
• Manufactured from 3-layer premium grade stainless steel and state of the art laser cutting
• Optimized sealing embossments seals extreme cylinder pressure
• Provides excellent stability and reduces cylinder bore distortion.
• Proprietary polymer coating ensures the micro seal of engine coolant and oil fluids.
• Ideal for supercharged, turbocharged, nitrous oxide and extreme compression ratio engines
• For high-performance street, drag race and oval track use

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• PROPRIETARY COATING – Nonstick anti-friction coating seals small surface imperfections

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• DESIGNED FOR THE TOUGHEST CONDITIONS — Engineered for hardworking vehicles that operate in severe conditions
• STRONG AND DURABLE — Severe duty steel core gaskets designed slightly thicker to accommodate for machined surfaces
• PREMIUM MATERIALS — High-grade stainless armor enhances strength and corrosion resistance while proprietary coatings enhance sealing and anti-stick properties
• SUPERIOR SEAL — Precise embossed Printoseal sealing beads at all vital areas to eliminate leak paths
• DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• PROPRIETARY COATING — Nonstick anti-friction coating seals small surface scratches and imperfections
• SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
• NO RETORQUE DESIGN — Steel core helps eliminate the need for retorquing head bolts
• STRONG AND DURABLE — Features graphite or reinforced fiber facing material and steel armor for strength and durability
• DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces

The Edelbrock #5087 E-210 Cylinder heads are designed for use with 1955-1986 Small-Block Chevy applications. The Edelbrock E-Series cylinder heads are a step up in affordable performance from our E-Street line. They feature larger runners for increased ai

Product Features:

• Complete Pair For Mechanical Flat Tappet
• 64cc Combustion Chamber Volume
• 210cc Intake/75cc Exhaust Runner Volume
• 2.08 in. Intake/1.6 in. Exhaust Valve Diameter
• 0.562 in. Deck Thickness

Remanufactured Cylinder Heads are complete rebuild & include new valve stem seals, soft plugs & verified camshafts. All threads are checked and repaired if necessary. Cylinder Heads are packaged in heavy plastic to protect the unit.

Product Features:

• All cylinder heads are both vacuum and pressure tested to verify valve seating, & integrity of water passages.
• All cylinder heads are packaged in environmentally safe and recyclable containers that are the perfect size for returning your original core
• All threads and machined surfaces are and repaired with technology that exceeds the original metal
• Non-sealing iron surfaces painted to prevent oxidization

Remanufactured Cylinder Heads are complete rebuild & include new valve stem seals, soft plugs & verified camshafts. All threads are checked and repaired if necessary. Cylinder Heads are packaged in heavy plastic to protect the unit.

Product Features:

• All cylinder heads are both vacuum and pressure tested to verify valve seating, & integrity of water passages.
• All cylinder heads are packaged in environmentally safe and recyclable containers that are the perfect size for returning your original core
• All threads and machined surfaces are and repaired with technology that exceeds the original metal
• Non-sealing iron surfaces painted to prevent oxidization

Remanufactured Cylinder Heads are complete rebuild & include new valve stem seals, soft plugs & verified camshafts. All threads are checked and repaired if necessary. Cylinder Heads are packaged in heavy plastic to protect the unit.

Product Features:

• All cylinder heads are both vacuum and pressure tested to verify valve seating, & integrity of water passages.
• All cylinder heads are packaged in environmentally safe and recyclable containers that are the perfect size for returning your original core
• All threads and machined surfaces are and repaired with technology that exceeds the original metal
• Non-sealing iron surfaces painted to prevent oxidization

Remanufactured Cylinder Heads are complete rebuild & include new valve stem seals, soft plugs & verified camshafts. All threads are checked and repaired if necessary. Cylinder Heads are packaged in heavy plastic to protect the unit.

Product Features:

• All cylinder heads are both vacuum and pressure tested to verify valve seating, & integrity of water passages.
• All cylinder heads are packaged in environmentally safe and recyclable containers that are the perfect size for returning your original core
• All threads and machined surfaces are and repaired with technology that exceeds the original metal
• Non-sealing iron surfaces painted to prevent oxidization

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Avoid risk associated with re-use of T-T-Y (torque to yield) head bolts
• Validated for fit, form and function
• Unsurpassed quality you can trust

All Pro Series bolts are cold forged to ensure molecular integrity, heat treated prior to thread rolling and machining, and are rated at 200,000 PSI tensile strength. ARP Pro Series head bolt kits are application specific, designed for use with typically competition only components. These fasteners deliver superior strength and meet the ARP zero defect zero failure quality standard. Hardened and parallel ground washers are included with each kit to ensure even load distribution and accurate torque readings. All Pro Series head bolts have a reduced wrenching hex or 12 point head and wide area flange to eliminate the need for valve train removal for cylinder head retorquing and permits the use of larger diameter valve springs. Most applications have undercut short bolts that can help eliminate head gasket failures through providing more stretch to compensate for the additional compression of gaskets.

Product Features:

• Pro Series Bolts Are Cold Forged To Ensure Molecular Integrity, Heat Treated Prior To Thread Rolling And Machining
• Nominally Rated At 200,000 Psi Tensile Strength
• These Fasteners Deliver Superior Strength And Meet The ARP Zero Defect Zero Failure Quality Standard
• Bolts Have A Reduced Wrenching Hex Or 12 Point Head And Wide Area Flange To Eliminate The Need For Valve Train Removal For Cylinder Head Retorquing And Permits The Use Of Larger Diameter Valve Springs

High Performance head bolts are available with a reduced wrenching hex or 12 point and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head retorquing. All High Performance Series bolts are 180,000 PSI (which is 15 Percent stronger than Grade 8) and kits come complete with hardened parallel ground washers.

Product Features:

• High Performance Head Bolts Are Available With A Reduced Wrenching Hex Or 12 Point
• Wide Area Flanged Head That Eliminates The Need For Valve Train Removal To Facilitate Cylinder Head Retorquing
• Rated At 180,000 Psi Tensile Strength
• High Performance Head Bolts Are Stronger

All Pro Series bolts are cold forged to ensure molecular integrity, heat treated prior to thread rolling and machining, and are rated at 200,000 PSI tensile strength. ARP Pro Series head bolt kits are application specific, designed for use with typically competition only components. These fasteners deliver superior strength and meet the ARP zero defect zero failure quality standard. Hardened and parallel ground washers are included with each kit to ensure even load distribution and accurate torque readings. All Pro Series head bolts have a reduced wrenching hex or 12 point head and wide area flange to eliminate the need for valve train removal for cylinder head retorquing and permits the use of larger diameter valve springs. Most applications have undercut short bolts that can help eliminate head gasket failures through providing more stretch to compensate for the additional compression of gaskets.

Product Features:

• Pro Series Bolts Are Cold Forged To Ensure Molecular Integrity, Heat Treated Prior To Thread Rolling And Machining
• Nominally Rated At 200,000 PSI Tensile Strength
• These Fasteners Deliver Superior Strength And Meet The ARP Zero Defect Zero Failure Quality Standard
• Bolts Have A Reduced Wrenching Hex Or 12 Point Head And Wide Area Flange To Eliminate The Need For Valve Train Removal For Cylinder Head Retorquing And Permits The Use Of Larger Diameter Valve Springs

High Performance head bolts are available with a reduced wrenching hex or 12 point and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head retorquing. All High Performance Series bolts are 180,000 PSI (which is 15 Percent stronger than Grade 8) and kits come complete with hardened parallel ground washers.

Product Features:

• High Performance Head Bolts Are Available With A Reduced Wrenching Hex Or 12 Point
• Wide Area Flanged Head That Eliminates The Need For Valve Train Removal To Facilitate Cylinder Head Retorquing
• Rated At 180,000 PSI Tensile Strength
• High Performance Head Bolts Are Stronger