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Manley Pro Series Crankshafts

Manley Pro Series crankshafts can make your short block bulletproof. They feature forged 4340 construction and undergo a multi-step heat-treatment process and are then nitrided for added strength. The crankshafts are stress-relieved, shot-peened, and magnafluxed. Manley Pro Series crankshafts have micro-polished large .125 in. radius journals, gun-drilled mains, and lightened rod journals for weight reduction. The counterweights are fully profiled and they are designed for internal balancing.

4.89 out of 5 stars ( 9 )

$1,042.34

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$1,269.68

Manley Titanium Valves

Manley titanium valves feature forged one-piece construction with grain flow, not a head welded to a stem. These jewel-like valves are machined in state-of-the-art CNC turning centers and valve stem grinders to exacting tolerances. Manley utilizes the finest titanium alloys for both the intakes and exhausts, providing the best balance of mechanical properties, hardness, ductility, and fatigue strength at the given temperatures. All Manley titanium valves must pass their rigorous final inspection process, and strict quality control enables them to deliver parts within tight tolerance. Custom valves can be delivered within a very reasonable turnaround time. Seat coatings are also available on certain shelf stock part numbers, as well as on custom valves.

5.0 out of 5 stars ( 3 )

$1,158.62

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$1,465.29

Manley Pro Series I-Beam Turbo Tuff Connecting Rods

Manley Pro Series I-Beam Turbo Tuff connecting rods are assembled from high-quality 4340 forged steel. Every rod is fully machined to the highest standards, and the Turbo Tuff design combines the appropriate weight and rugged strength for ultimate horsepower utilization. Each rod is shot-peened after machining and individually magnafluxed. These connecting rods feature 7/16 in. ARP 2000 cap screws with 12-point heads for outstanding 200,000 psi tensile strength.

Not Yet Reviewed

$1,026.26

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$1,543.34

Manley Pro Series I-Beam Connecting Rods

Manley Pro Series I-beam connecting rods are forged from 4340 aircraft-quality vacuum degassed material. They're fully machined to produce the strongest rods possible. These rods are shot-peened to Mil specs and are 100 percent individually magnafluxed. They feature 7/16 in. ARP cap screws with 12-point heads and your choice of material grade to maximize your needed tensile strength! Manley Pro Series I-beam connecting rods are available in various sizes for a wide range of vehicles and horsepower ranges from 850 to 1,600 hp. Match up your specs, then order an individual rod or a larger set quantity.

Not Yet Reviewed

$1,028.90

Manley Platinum Series Pistons

Manley Platinum Series pistons are designed to provide trouble-free installation, excellent reliability, and maximum horsepower for your application. Available in 2618 and 4032 forgings, they provide the optimum balance between strength and weight, with no grain-interrupting internal milling. The Platinum Series pistons' 2618 alloy offers maximum high-temperature strength and fatigue resistance, while the 4032 alloy is ideal for moderate-horsepower street applications. Order the style and size pistons designed for your vehicle and engine.

4.33 out of 5 stars ( 6 )

$1,015.96

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$1,490.50

Manley NexTek Valve Springs

These Manley NexTek valve springs are better-designed valve springs using state-of-the-art machinery for purpose-built racing engines. They're manufactured from super-clean, high-tensile chrome silicon steel and are shot-peened to MIL specs for maximum fatigue life. They feature a proprietary, multi-step heat-treating that minimizes load loss and have computer-aided modeling to minimize valve bounce and valve gear separation. The Manley NexTek valve springs are smaller diameter and lightweight, allowing engines to rev higher faster. They have an extended tip thickness designed to eliminate overload breakage, and their tightly controlled open-end flatness reduces valve stem side loading.

5.0 out of 5 stars ( 4 )

$1,241.10

Manley Race Series Gen II Custom Valves

Do you have a boosted, high-heat, high-horsepower engine? Manley offers custom race valves for your high performance engine. These Race Series Gen II custom valves are manufactured from XH-426 (exhaust) and NK-842 (intake) materials with hard tips and hardened grooves. They are tailored to length, groove position, head diameter, margin, and other specifications that you request when ordering. So, whether you're building an engine or are a serious racer, Manley is committed to seeing that you're there at the finish.

Not Yet Reviewed

$1,516.01