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Best Speedmaster Small Block Mopar Deals of Nov 2026

Updated November 10, 2026·Our site contains affiliate links for which we may be compensated.

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Speedmaster

Assembled Cylinder Heads Compatible with Mopar Small Block (LA) 273/318/340/360 170cc/65cc - Hydraulic Flat Compatible, Springs/Valves Installed, Bolt-On Pair

[FLOWS BIG, BUILDS POWER] Aluminum 170cc intake runners deliver high-velocity charge for strong mid-range and top-end power on your Mopar Small Block (LA) - matched to hydraulic flat cam profiles.

[FITS Mopar Small Block (LA) 273/318/340/360] Direct bolt-on for standard-deck blocks with stock head bolt pattern. Verify pushrod length and intake manifold port match.

[ASSEMBLED & READY] Springs, retainers, locks, valves, valve seals installed. 65cc combustion chambers with stainless intake/exhaust valves. Just bolt on, gasket, torque, and run.

[PREMIUM ALUMINUM BUILD] Precision-cast for weight savings and improved heat dissipation vs cast iron. Hardened seats, machined for stud-mount rockers, high-RPM ready.

[SHIPS AS A PAIR] Set of 2 fully assembled cylinder heads, matched. Head gaskets, head bolts/studs, intake gaskets, and rocker arms sold separately.

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Speedmaster

Assembled Cylinder Heads Compatible with Mopar Small Block (LA) 273/318/340/360 170cc/65cc - Hydraulic Roller Compatible, Springs/Valves Installed, Bolt-On Pair

[FLOWS BIG, BUILDS POWER] Aluminum 170cc intake runners deliver high-velocity charge for strong mid-range and top-end power on your Mopar Small Block (LA) - matched to hydraulic roller cam profiles.

[FITS Mopar Small Block (LA) 273/318/340/360] Direct bolt-on for standard-deck blocks with stock head bolt pattern. Verify pushrod length and intake manifold port match.

[ASSEMBLED & READY] Springs, retainers, locks, valves, valve seals installed. 65cc combustion chambers with stainless intake/exhaust valves. Just bolt on, gasket, torque, and run.

[PREMIUM ALUMINUM BUILD] Precision-cast for weight savings and improved heat dissipation vs cast iron. Hardened seats, machined for stud-mount rockers, high-RPM ready.

[SHIPS AS A PAIR] Set of 2 fully assembled cylinder heads, matched. Head gaskets, head bolts/studs, intake gaskets, and rocker arms sold separately.

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Speedmaster

Top End Kit Compatible with Mopar Big Block 361/383/400/413/426/440 - Assembled Cylinder Heads, Intake Manifold, Roller Rocker Arms, Valve Covers (Camshaft Not Included)

[BOLT-ON TOP END POWER] Matched top-end kit for Mopar Big Block 361/383/400/413/426/440 - heads built around a hydraulic flat tappet camshaft for a 50-100+ HP gain over stock when paired with a properly matched cam. Heads, intake, and rockers engineered to work together.

[FITS Mopar Big Block 361/383/400/413/426/440] Designed for standard-deck short blocks and a hydraulic flat tappet camshaft (camshaft sold separately). Verify piston-to-valve clearance with your chosen cam. Tune required for best results.

[COMPLETE TOP END] Includes assembled cylinder heads (pair), roller rocker arms, single plane shootout intake manifold, valve covers, valve springs, retainers, and valve stem seals, and intake manifold gasket set.

[HEAD, INTAKE & ROCKER MATCHED] Head port flow, intake runner design, and rocker ratio selected to complement each other for balanced top-end airflow - removes the guesswork of mixing mismatched components.

[WHAT YOU STILL NEED] hydraulic flat tappet camshaft, lifters, pushrods, carburetor, distributor, exhaust headers, harmonic balancer, and tune. Short block, oil pan, and accessories not included.

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Speedmaster

Speedmaster Cast Iron Magnum Style Cylinder Head Small Block Mopar 318/340/360

Small Block Magnum Style Mopar...

62cc Combustion...

179cc Intake...

1.920 in. Intake...

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Speedmaster

Assembled Cylinder Heads Compatible with Mopar Big Block 361/383/400/413/426/440 265cc/74cc - Hydraulic Roller Compatible, Springs/Valves Installed, Bolt-On Pair

[FLOWS BIG, BUILDS POWER] Aluminum 265cc intake runners deliver high-velocity charge for strong mid-range and top-end power on your Mopar Big Block - matched to hydraulic roller cam profiles.

[FITS Mopar Big Block 361/383/400/413/426/440] Direct bolt-on for standard-deck blocks with stock head bolt pattern. Verify pushrod length and intake manifold port match.

[ASSEMBLED & READY] Springs, retainers, locks, valves, valve seals installed. 74cc combustion chambers with stainless intake/exhaust valves. Just bolt on, gasket, torque, and run.

[PREMIUM ALUMINUM BUILD] Precision-cast for weight savings and improved heat dissipation vs cast iron. Hardened seats, machined for stud-mount rockers, high-RPM ready.

[SHIPS AS A PAIR] Set of 2 fully assembled cylinder heads, matched. Head gaskets, head bolts/studs, intake gaskets, and rocker arms sold separately.

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Speedmaster

Roller Rocker Arm Set Compatible with Mopar Small Block (LA) 273/318/340/360 - Premium Build, Matched Ratio for Aggressive Cam Profiles, Set of 16

[PERFORMANCE GRADE] Roller Rocker Arm Set for Mopar Small Block (LA) 273/318/340/360 - aluminum build engineered for serious enthusiast applications.

[FITS Mopar Small Block (LA) 273/318/340/360] Direct OEM-style fit. Verify exact application compatibility before final install. Standard bolt pattern.

[QUALITY BUILD] Premium materials and precision machining throughout for long service life under demanding conditions.

[BOLT-ON INSTALL] Standard OEM bolt pattern - no modifications required for most applications. Hardware included where applicable.

[SPEEDMASTER QUALITY] Backed by Speedmaster's reputation for performance parts since 1979 - 12-month limited worldwide warranty.

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Speedmaster

Speedmaster PCE281.1654 Small Block Chrysler 318/340/360 Aluminum Cylinder Head

Small Block Mopar 318/340/360

65cc Combustion Chamber

170cc Intake Runner

2.020 in. Intake...

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Speedmaster

Assembled Cylinder Heads Compatible with Mopar Big Block 361/383/400/413/426/440 265cc/74cc - Hydraulic Flat Compatible, Springs/Valves Installed, Bolt-On Pair

[FLOWS BIG, BUILDS POWER] Aluminum 265cc intake runners deliver high-velocity charge for strong mid-range and top-end power on your Mopar Big Block - matched to hydraulic flat cam profiles.

[FITS Mopar Big Block 361/383/400/413/426/440] Direct bolt-on for standard-deck blocks with stock head bolt pattern. Verify pushrod length and intake manifold port match.

[ASSEMBLED & READY] Springs, retainers, locks, valves, valve seals installed. 74cc combustion chambers with stainless intake/exhaust valves. Just bolt on, gasket, torque, and run.

[PREMIUM ALUMINUM BUILD] Precision-cast for weight savings and improved heat dissipation vs cast iron. Hardened seats, machined for stud-mount rockers, high-RPM ready.

[SHIPS AS A PAIR] Set of 2 fully assembled cylinder heads, matched. Head gaskets, head bolts/studs, intake gaskets, and rocker arms sold separately.

Details & specs

Compare

ProductPage Image

Speedmaster

Roller Rocker Arm Set Compatible with Mopar Big Block 361/383/400/413/426/440 - Premium Build, Matched Ratio for Aggressive Cam Profiles, Set of 16

[PERFORMANCE GRADE] Roller Rocker Arm Set Compatible with Mopar Big Block 361/383/400/413/426/440 - aluminum build engineered for serious enthusiast applications.

[FITS Mopar Big Block 361/383/400/413/426/440] Direct OEM-style fit. Verify exact application compatibility before final install. Standard bolt pattern.

[QUALITY BUILD] Premium materials and precision machining throughout for long service life under demanding conditions.

[BOLT-ON INSTALL] Standard OEM bolt pattern - no modifications required for most applications. Hardware included where applicable.

[SPEEDMASTER QUALITY] Backed by Speedmaster's reputation for performance parts since 1979 - 12-month limited worldwide warranty.

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Speedmaster

Speedmaster PCE473.1001 Compatible with Mopar and Compatible with Chrysler BB 413 426 440 RB Block Zinc Plated Valley Pan

Included components as shown in product images

Speedmaster creates unique and distinctive DNA items inspired by the blend of old and new technology. Its empowered work forced drives innovation not only in the products it sells but with the way it goes about doing it.

TRACK PROVEN - Surviving the longevity of road, race and recreation is mandatory for all Track Proven products, Bringing you closer to product perfection.

12-Month Limited Worldwide Warranty

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Our #1 Pick Today

ProductPage Image

Speedmaster

Assembled Cylinder Heads Compatible with Mopar Small Block (LA) 273/318/340/360 170cc/65cc - Hydraulic Flat Compatible, Springs/Valves Installed, Bolt-On Pair

[FLOWS BIG, BUILDS POWER] Aluminum 170cc intake runners deliver high-velocity charge for strong mid-range and top-end power on your Mopar Small Block (LA) - matched to hydraulic flat cam profiles.

[FITS Mopar Small Block (LA) 273/318/340/360] Direct bolt-on for standard-deck blocks with stock head bolt pattern. Verify pushrod length and intake manifold port match.

[ASSEMBLED & READY] Springs, retainers, locks, valves, valve seals installed. 65cc combustion chambers with stainless intake/exhaust valves. Just bolt on, gasket, torque, and run.

[PREMIUM ALUMINUM BUILD] Precision-cast for weight savings and improved heat dissipation vs cast iron. Hardened seats, machined for stud-mount rockers, high-RPM ready.

[SHIPS AS A PAIR] Set of 2 fully assembled cylinder heads, matched. Head gaskets, head bolts/studs, intake gaskets, and rocker arms sold separately.

Details & specs

Compare

Disclaimer: While we make every effort to ensure accuracy, we cannot guarantee that all product specifications, pricing, discounts, and details are complete or error-free. Because information is subject to change, we recommend verifying all details directly with the retailer prior to making a purchase. As an Amazon Associate, we earn from qualifying purchases.

10 Speedmaster Small Block Mopar deals are available from: Amazon, starting from $33.60.

The biggest discount we found is 15% on Speedmaster Cast Iron Magnum Style Cylinder Head Small Block Mopar 318/340/360 (746-PCE281.1773) at Amazon.

The lowest price we found is $33.60 while the highest is $2,343.60. Prices for the best Speedmaster Small Block Mopar deals average at $927.02.

Compare prices across stores, find real deals, and get an email when the products you want drop in price.

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