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Engine Blocks & Accessories

Part Groups

Results 1 - 24 of 68

Improved Racing Engine Block Oil Galley Barbell Plugs

Improved Racing's engine block oil galley barbell plugs feature a second O-ring that completely seals off the dirty oil from the clean oil, forcing 100 percent of the flow through the filter. Sharp corners were avoided and machined as smooth fillets to improve oil flow, while the bull nose tip helps smooth oil flow to the oil filter. The shaft diameter is smaller than the OEM plastic barbell to minimize flow restriction, and the threaded hole allows for easy removal with any 4mm x 0.7 threaded screw. Please refer to the Applications tab when ordering to confirm the fitment. Features of Improved Racing's barbell plugs include: * Direct replacement for plastic OEM barbell plug * Precision CNC-machined from billet 6061-T6 aluminum * Viton® rubber O-rings offer high-temperature resistance and excellent chemical compatibility with engine oils

5.0 out of 5 stars ( 16 )

$26.90

$32.90

Summit Racing™ LS Rear Main Seal Housings

Summit Racing™ LS Rear main seal housings are the correct housings for all LS models. These aluminum housings are ideal for replacing damaged housings and building a new project from scratch. Summit Racing™ LS rear main seal housings are designed for a correct fit and quality performance.

2.44 out of 5 stars ( 16 )

$50.99

Melling Freeze Plugs

Seal up the casting core holes in your engine block and heads with Melling freeze plugs. They're manufactured from a variety of quality materials—such as brass, steel, and stainless steel—and offered in different diameters and depths to fit your specific application. These expansion plugs help protect against cracks caused by the pressure of frozen coolant and in regular operation will ensure that all vital fluids stay in the engine, where they belong. They are available for a wide range of makes and models, and can be ordered individually or in a multi-piece kit.

4.56 out of 5 stars ( 158 )

$23.99

$30.99

Summit Racing™ Freeze Plugs

Our Summit Racing™ brass freeze plugs were designed for marine use, but you landlocked guys will get a lot of use out of them, too. All of the necessary plugs are included.

4.8 out of 5 stars ( 98 )

$30.99

ARP High Performance Series Main Bolts

ARP High Performance Series main bolts are rated at 180,000 psi and a popular premium replacement for OEM fasteners. Designed to meet the exacting standards and demands of professional engine builders, ARP bolts are forged from 8740 chromoly steel and feature a reduced wrenching head, large underhead radius, and rolled threads for the utmost in reliability. The threads are rolled after heat-treating which gives them about 2,000 percent better fatigue strength than most main bolts that are threaded prior to heat-treating. Hardened parallel-ground washers are included with each kit.

4.87 out of 5 stars ( 171 )

$35.99

$53.99

Melling Cylinder Sleeves

Melling cylinder sleeves are available for a variety of bore sizes to fit all sorts of cylinders. They are great for fixing damaged cylinders. Get your cylinder sleeves from Melling on order today!

4.82 out of 5 stars ( 57 )

$20.99

$56.99

Summit Racing™ Bellhousing Dowel Pins

Ensure proper alignment with Summit Racing™ bellhousing dowel pins. Our pins are a must for easier alignment when installing the bellhousing on your engine block. They contribute to fewer shifter problems and maximum life for your bearings and transmission. The dowel pins are available in a variety of sizes and offsets. Order the pair recommended for your vehicle application.

4.13 out of 5 stars ( 79 )

$25.99

$29.99

Derale Oil Galley Bypass Plugs

From the leader in performance cooling, Derale oil galley bypass plugs for Gen III and IV LS engines helps improve flow, oil pressure, and completely block dirty engine oil from bypassing the filter with a triple O-ring design. A direct replacement for the plastic OEM barbell plug, they are made from 6061 T-6 billet aluminum and black anodized. Derale plugs have three preinstalled Viton® O-rings and threaded #6-32 holes for easy installation.

5.0 out of 5 stars ( 2 )

$21.49

Moroso Oil Galley Barbell Plugs

Replace a worn out or old rear oil passage plug with Moroso oil galley barbell plugs. Your vehicle's old plug could be allowing dirty engine oil to bypass the oil filter. Moroso's improved design features a secondary O-ring to seal dirty oil from flowing to the engine bearings. These dog bones also have a smaller shaft diameter than the OEM piece to minimize any flow restriction. Moroso's oil galley diverters are machined from billet aluminum, not plastic like the original OE piece, and are supplied with quality, high-temperature rated Viton® O-rings to withstand all types of engine oils and compression cycles. Whether you call them passage plugs, dog bones, or barbells, these Moroso components can be easily removed from the engine block once installed with its 4mm threaded hole.

5.0 out of 5 stars ( 4 )

$22.99

COMP Cams Engine Finishing Kits

These COMP Cams engine finishing kits contain the often-forgotten components missing during final engine assembly. They include parts like Woodruff keys, cylinder head alignment dowels, cam bolts, timing cover dowels, and oil pump dowels. Available for small and big block Chevrolet and small block Ford engines, the COMP Cams engine finishing kits make engine assembly easy.

4.73 out of 5 stars ( 66 )

$20.95

$51.95

Summit Racing™ Oil Cooler Block-Off Plates

Cover your oil cooler outlet with Summit Racing™ oil cooler block-off plates. Our covers are machined from billet aluminum and are clear anodized for added durability and looks. They are available with or without ports and include mounting hardware.

5.0 out of 5 stars ( 4 )

$24.99

$25.99

Summit Racing™ LS Main Cap Bolt Kits

Rebuilding your GM LS engine? Replace those old main cap bolts with our Summit Racing™ LS main cap bolt kits for peace of mind. Our kit includes all 30 bolts to get the job done. They meet the same high-quality and specifications as your factory bolts.

4.67 out of 5 stars ( 15 )

$41.99

Moroso Extra Long Bellhousing Dowel Pins

Moroso extra long bellhousing dowel pins provide an easy method of properly aligning the transmission input shaft to the crankshaft pilot bearing. They are extra long to simplify the task of placing the bellhousing on the engine block. Proper alignment provides a clean clutch release, maximum pilot bearing and transmission life, and reduces shifter problems.

4.39 out of 5 stars ( 72 )

$20.99

$26.99

Trick Flow® Cylinder Head Locating Dowels

These Trick Flow® cylinder head locating dowels provide positive location of the cylinder head in relation to the engine block during installation.

4.66 out of 5 stars ( 35 )

$23.99

ICT Billet Camshaft Thrust Plate Bolts

ICT Billet camshaft thrust retainer plate bolts are high-quality replacements for your stock fasteners. If you're doing an engine rebuild, cam swap project, or maybe misplaced your stock bolts—why not upgrade with a premium set of camshaft thrust retainer plate fasteners from ICT Billet?

4.67 out of 5 stars ( 3 )

$21.99

ARP Pro Series Main Bolts

ARP Pro Series main bolts are application-specific and rated at 190,000 psi. Designed for use in competition engines, as well as to meet the exacting standards and demands of professional engine builders, ARP bolts are forged from 8740 chromoly steel and feature a reduced wrenching head, large underhead radius, and rolled threads for the utmost in reliability. The threads are rolled after heat-treating which gives them about 2,000 percent better fatigue strength than most main bolts that are threaded prior to heat-treating. Hardened parallel-ground washers are included with each kit.

5.0 out of 5 stars ( 13 )

$47.99

$49.99

Dura-Bond Engine Hardware Finishing Kits

The engine tear down and cleaning process can lead to broken, bent, distorted, or lost service parts. These items can be troubling to any engine re-builder, especially when they are difficult to obtain. That is why Dura-Bond offers many of the hard-to-find OEM service parts you need. All hardware is manufactured to precise OEM dimensions for exact fit.

4.61 out of 5 stars ( 66 )

$21.99

$48.99

Milodon Freeze Plug Kits

Milodon freeze plugs will not rot out, like lower cost steel ones. Your new engine assembly deserves the best. Don't get stuck trying to replace a leaking steel freeze plug behind a motor mount a year or two from now. Milodon freeze plug kits include all of the necessary external block freeze plugs, and cam and oil galley plugs for one complete engine.

4.5 out of 5 stars ( 46 )

$22.95

$42.95

Summit Racing™ Main Bolt Kits

Summit Racing™ main bolt kits contain alloy steel hardware that's been heat-treated to a 180,000 psi tensile strength rating. They're available in a variety of main bolt and head styles. Order the kit recommended for your application.

4.5 out of 5 stars ( 18 )

$28.99

$41.99

Pioneer Performance Freeze Plugs

These Pioneer performance freeze plugs are designed by engine rebuilders, for engine rebuilders. Several types of freeze plugs are offered in a choice of materials and sizes for a large variety of applications.

4.66 out of 5 stars ( 41 )

$21.29

$49.99

Lakewood Bellhousing Dowel Pins

Dial-in your bellhousing alignment to the engine block with Lakewood offset dowel pins. These adjustable pins can correct improper alignment. They're offered in a variety of offsets, lengths, and diameters for nearly a dozen makes, including Chevy, Oldsmobile, Pontiac, Buick, Ford, Lincoln, Mercury, and Mopar models. Stock pins for Ford and GM applications are also available. Lakewood bellhousing dowel pins are simple, affordable keys to aligning the transmission housing with your engine.

3.84 out of 5 stars ( 25 )

$42.27

$51.59

Ford Performance Parts Plug and Dowel Kits

When rebuilding your Ford engine, you'll want to use the proper plugs and dowels for the job. These Ford Performance Parts Plug and Dowel kits include the necessary dowels, cup plugs, and pipe plugs for your rebuild.

4.75 out of 5 stars ( 8 )

$32.99

$42.99

Ford Performance Parts Main Stud and Bolt Kits

Do you need main cap fasteners for your Ford engine? Ford Performance Parts main stud and bolt kits are available for a variety of Ford V8s. Their kits contain all main bolts, studs, washers, and nuts for one block. Secure your main caps the right way with Ford Performance Parts main stud and bolt kits. Note: some bolts and studs are torque-to-yield and must be replaced after each use.

5.0 out of 5 stars ( 1 )

$49.99

Earl's Performance Oil Cooler Block-Off Plates

Earl's Performance oil cooler block-off plates are billet covers—built with an extra 1/8 in. NPT port that can be used for an oil pressure gauge or a turbo oil supply port. The 1/8 in. port is located on the top to provide extra header clearance. These oil cooler block-off plates are designed to fit most GM LS/LT oil pans. Earl's Performance oil cooler block-off plate feature: * Billet aluminum construction with black anodized finish * Includes block-off plate, O-ring seal (no gasket required), and mounting screws

4.78 out of 5 stars ( 9 )

$48.86

$49.79

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