from

$59.99

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

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$179.99

High quality valve covers that help you solve rocker clearance issues. Great for when you just can’t seem to stop those thin steel ones from leaking oil. Good for high performance street, drag and oval track racing. They feature an extended sealing lip to positively locate and secure the gasket and stop it from moving to eliminate oil leaks. These Mr. Gasket covers are precision die cast for light weight and a perfect fit.

Product Features:

Fits small block Chevy engines
Polished cast aluminum construction
Tall design cover for added rocker clearance
Sold as a pair
Stops Gasket From Moving
A Perfect Fit
Beautifully Polished To A High Luster

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$0.99

This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:

Direct replacement – this engine expansion plug matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

from

$111.99

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.brbrA 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 – 4.060″ Thickness – .040″
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

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$40.99

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:

Application specific design to ensure a perfect fit
Unsurpassed quality you can trust

from

$18.99

Product Features:

Valve Seats
Performer Series
50-State Street Legal

from

$0.43

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

from

$151.99

Complete kit includes retainers and locks. Springs made of highest quality spring wire. Springs precision wound to close tolerances. Includes superior quality steel retainers. Includes 7 degree heat-treated valve stem locks. Retainers and locks are black oxide coated. Non-rotator style: Dyno tested and street proven. Great match to Edelbrock camshaft kit.

Product Features:

Complete Kit: Includes Retainers And Locks
Springs Made of Highest Quality Spring Wire
Springs Precision Wound To Close Tolerances
Includes Superior Quality Steel Retainers
Includes 7 deg. Heat-Treated Valve Stem Locks
Retainers and Locks Black Oxide Coated
Non-Rotator Style: Dyno Tested and Street Proven
Great Match to Edelbrock Camshaft Kit

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$147.99

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

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$316.99

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

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$77.99

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:

Head sets contain gaskets and seals necessary for a valve grind or head reconditioning job
Contains all the parts needed to complete the repair unless otherwise noted
Contains all the parts needed to complete the repair unless otherwise noted

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$34.49

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

from

$9.79

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

from

$873.99

The Edelbrock part #79899 Small Block Chevy E-CNC cylinder heads offer the ultimate performance. These cylinder heads are fully CNC ported for maximum horsepower and torque, making them ideal for high-performance’s street and racing applications. They als

Product Features:

Complete Single For Hydraulic Flat Tappet
64cc Combustion Chamber Volume
185cc Intake/75cc Exhaust Runner Volume
2.02 in. Intake/1.6 in. Exhaust Valve Diameter
0.562 in. Deck Thickness

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$1268.99

The Edelbrock #5073 E-Street cylinder heads are designed for use with 1955-1986 Small-Block Chevy applications. The Edelbrock E-Street cylinder heads offer American made quality and affordable performance. E-Street cylinder heads feature as-cast ports and

Product Features:

Complete Pair For Hydraulic Flat Tappet
70cc Combustion Chamber Volume
2.02cc Intake/60cc Exhaust Runner Volume
2.02 in. Intake/1.6 in. Exhaust Valve Diameter
0.562 in. Deck Thickness

from

$990.99

Product Features:

Out-of-the-Box Bolt-On Performance
With Straight Plugs
70cc Combustion Chambers Improve Performance
Retain Stock Compression Ratio

from

$1575.99

The Edelbrock #5085 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 Hydraulic 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

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$249.99

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

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$155.99

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

from

$109.99

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

from

$119.99

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

from

$2.49

Sealed Power« Vintage components provide coverage for applications over 35 years old, restoring classics with like new performance. Leading edge materials, ISO & QS certified manufacturing ensures performance and longevity for treasured engine rebuilds.

GMC 250 Valve Cover and Cylinder Heads

Your One-Stop Shop For Trusted GMC 250 Valve Cover and Cylinder Heads

Essential GMC 250 Valve Cover and Cylinder Heads

ARP Auto Racing – 1.75"Oal Stud, 0.8"D Adjuster Third, 3/8"-24, 7/16"-14, 0.7"D Screw-In, Set Of 16 (Part No.134-7101)

Mr. Gasket – Aluminum Valve Cover (Part No.6854)

Dorman – Steel Cup Expansion Plug 9/16 In., Height 0.250 (sold by each) (Part No.555-008)

Mr. Gasket – Mls Head Gasket (Part No.3130G)

Felpro – Cylinder Head Gasket: Fiber-Faced Composite, Without Head Bolts (Part No.7391 S)

Edelbrock – Valve Seat for S/B Chevy heads with 1.60" Valves (Part No.9710)

Sealed Power – Engine Valve Spring Retainer Keeper (Part No.VK-115)

Edelbrock – Complete Sure Seat Valve Spring Kit for Chevy 262-400 V8 1957-95 (Part No.5794)

Edelbrock – Sure Seat Valve Springs (Part No.5825)

ARP Auto Racing – ARP Cylinder Head Stud Kit (Part No.234-4301)

Felpro – Cylinder Head Gasket Set (Part No.HS 7391 S-4)

Felpro – Engine Valve Cover Load Spreader Set (Part No.ES 72676)

Sealed Power – Engine Valve Lifter (Part No.HT-951)

Edelbrock – E-CNC Small-Block Chevy 64cc Cylinder Head Hydraulic Flat Tappet Cam (Part No.79899)

Edelbrock – Small-Block Chevy E-Street Cylinder Head 70cc Pair (Part No.5073)

Edelbrock – RPM Small-Block Chevy Cylinder Head SBC 70cc Hydraulic Flat Tappet Cam (Part No.60739)

Edelbrock – Small-Block Chevy E-Series Cylinder Head E-210 Flat Tappet Camshaft (Part No.5085)

ARP Auto Racing – For Use Wit 2003 And Earlier Gen Iii/Ls Series Smal Block, Hex Head, Chrome Moly (Part No.134-3609)

ARP Auto Racing – For Use With 2004 And Later Gen Iii/ Ls Series Small Block, 200000Psi Tensile (Part No.134-3610)

ARP Auto Racing – For Use With Chevy Small Block, Black Oxide, Chrome Moly, With Washers (Part No.134-3601)

ARP Auto Racing – For Use With Oem Cylinder Heads/ Most Edelbrock, 12Point Head, 180000Psi Tensile (Part No.134-3701)

Sealed Power – Engine Push Rod (Part No.RP-3028)

GMC 250 Valve Cover and Cylinder Heads List

Valve Cover and Cylinder Heads Brands You Can Trust For Your GMC 250

Popular Edelbrock Valve Cover and Cylinder Heads

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Most Purchased GMC 250 Valve Cover and Cylinder Heads from Sealed Power

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