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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.
( 158 )
$7.99
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$23.99
Lakewood EZ-Adjustable bellhousing dowel pins are unique because they slip easily into the engine block and are designed to be turned with a wrench rather than a screwdriver. Once they're pointed in the correct direction, a set screw (which runs down the center) is then tightened, which prevents the dowel pin from turning. No need to pound the pins in and out—a no drilling or tapping is required! Order the model recommended for your vehicle and engine application.
( 29 )
$172.95
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.
( 79 )
$14.99
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$29.99
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.
( 72 )
$20.99
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$26.99
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!
( 57 )
$21.99
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$96.99
ARP main stud kits help eliminate main cap walk/fretting and protect the threads in your engine block. They include studs made from 8740 chromoly steel and heat-treated in-house to 190,000 psi tensile-strength rating. The precision J-form threads are rolled after heat-treat for much stronger threads than the competition. Kits come complete with hardened parallel-ground washers and high-quality nuts. Add confidence in the strength of your engine build with the ARP main stud kit designed for your application.
( 381 )
$69.99
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$202.99
Dorman expansion plugs are conveniently designed aftermarket replacements for stripped plugs. A leak-proof fit and long service life are assured every time, due to high-quality standards and materials used in the manufacturing process. Dorman engine and camshaft expansion plugs are offered in multiple sizes, styles, and materials for precise fitment on countless makes and models. They're easy to install and available individually or in multi-pack sets.
( 74 )
$4.99
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$31.99
Mr. Gasket brass freeze plug kits eliminate any chance of rusted-out engine expansion plugs. Though they're designed for marine applications, these kits are ideal for long-term stored vehicles, as well as for everyday street use. The plugs guard your engine against freeze damage and cracks when there is insufficient antifreeze protection. Each kit includes all of the plugs needed for a complete (and specific) engine block—for applications from 1955 and up.
Not Yet Reviewed
$38.34
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.
( 25 )
$42.27
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$66.45
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.
( 46 )
$22.99
Pioneer bellhousing dowel pins are 0.4 in. longer than stock to help simplify placing the bellhousing on your engine block. Simplifying the task makes successful alignment more likely, which helps provide cleaner clutch release, maximum component life, and reduced shifter issues. Pioneer bellhousing dowel pins are designed to fit several Chevy and GM engine sizes, including both small and big blocks.
Not Yet Reviewed
$21.39
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.
( 171 )
$43.99
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$54.99
ACDelco cylinder head pins offer accurate alignment. The precise positioning of your cylinder heads prevents leaks and keeps your engine running efficiently. So, maintain the quality performance of your ride by utilizing cylinder head dowel pins from ACDelco in your build.
( 9 )
$1.99
Protect your engine block with these Chevrolet Performance expansion plugs. Expansion plugs protect your engine block from freezes that can crack or permanently damage your expensive block. These plugs are made of brass and are designed to withstand thermal and corrosive effects under the hood of your car without failing. Don't risk expensive damage or deal with a leaky plug anymore--get these Chevrolet Performance expansion plugs.
( 4 )
$4.99
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$6.99
Properly align your transmission and block with Dart bellhousing dowel pins. These premium dowel pins will help to keep the alignment correct for a clean clutch release, reduced shifter problems, and maximum pilot bearing and transmission life.
( 8 )
$3.87
Melling engine expansion plug kits come with everything needed to replace the leaky "freeze" plugs on your current engine. When you have the motor out of the chassis, it's the ideal time to update the plugs before they start leaking. Order the kit recommended for your application—and stay ahead of the game with Melling!
( 10 )
$4.99
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$20.99
Avoid corrosion in your engine and replace your rusty freeze plugs with Proform's durable brass freeze plug kits. All of the necessary plugs are included for one complete engine block.
( 21 )
$19.99
TCI extra-long dowel pins are a must for any application running a mid-mount plate to ensure that the transmission bellhousing is properly aligned with the engine.
( 5 )
$31.95
Milodon main stud kits are required where maximum gasket loading and minimal wear and tear are exerted on the block threads. These engine studs are premium-grade, race-quality studs that are created from aircraft-quality 8740 chromoly steel right in Milodon's own plant. They are ground and thread-rolled after heat treatment to ensure the exacting tolerances that Milodon requires for all of their fasteners. This ensures strength and consistent torque readings. The tensile strength of these premium fasteners is 190,000 psi, which is more than adequate for the most demanding applications. All kits come complete with 4130 heat-treated, parallel-ground washers and high-strength nuts.
( 20 )
$81.95
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$132.95
Dorman main cap bolts keep your engine main caps in place. Featuring quality steel construction, these fasteners offer a direct replacement for a proper fit every time, and each bolt undergoes material testing to conform to product standards. When rebuilding your engine, replace your main cap fasteners with the reliability and strength of Dorman bolts.
Not Yet Reviewed
$59.99
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.
( 41 )
$22.99
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$49.99
Cloyes engine oil galley plugs will help maintain proper oil flow and prolong the life of your engine. They are made from durable steel and designed for your specific engine.
( 2 )
$2.99
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