MERCURY Engine Blocks & Accessories Engines & Components

PRW Billet Steel Main Girdles

PRW billet steel main girdles help eliminate the block flex and cap walk that occurs as a result of stress while under extreme loads, or during nitrous oxide power bursts in high performance engines. PRW main stud girdles are manufactured from premium quality 1045 billet steel, and include high-quality PRW fasteners and hardware. Select the girdle designed for your vehicle's engine.

3.0 out of 5 stars ( 2 )

$240.06

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$243.23

ARP Main Stud Kits

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.

4.8 out of 5 stars ( 398 )

$132.99

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!

4.84 out of 5 stars ( 61 )

$102.99

PRW Billet Steel Main Caps

PRW billet steel main caps raise the bar in the high performance industry. The main caps are precision-machined from high strength steel, which offers both the proper balance of strength and flexibility to allow transfer of increased shock loads to the crank and bearings. These main caps stabilize the entire crankshaft rotating assembly in your high-performance engine by eliminating annoying cap walk, and reducing main bearing bore distortion. With a combination of top-quality performance components and reasonable pricing, we know that when you receive your new PRW billet steel main caps, you will have no trouble seeing what the excitement is all about!

2.33 out of 5 stars ( 3 )

$219.97

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$227.76

World Products Main Stud Kits

World Products engine block main studs are made from 8740 chromoly steel and have a 190,000 psi tensile strength rating. They are precision centerless-ground and thread-rolled to Mil-S-8879 specs, with a black oxide finish for corrosion resistance. The kits come complete with hardened washers and high-strength nuts.

Not Yet Reviewed

$187.34

Melling Performance Cylinder Sleeves

Melling uses top-grade materials to produce these performance cylinder sleeves. They provide longer life with less distortion and enhanced reliability. These proven sleeves have been used successfully for years in heavy-duty diesel and performance engines. Melling Performance cylinder sleeves are compatible with all ring materials and are designed for a variety of bore sizes.

5.0 out of 5 stars ( 2 )

$102.99

Pioneer Cylinder Head Dowel Pins

Pioneer offers quality new cylinder head dowel pins at an affordable price. These dowel pins are great to have on hand when you do machine work on your block. Pioneer cylinder head dowel pins are made with first-rate materials and are available in a choice of sizes for accurate cylinder head alignment.

4.78 out of 5 stars ( 59 )

$104.99