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Best Speedmaster Mopar La Heads 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

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

Speedmaster PCE435.1075 Compatible with Mopar and Compatible with Chrysler SB 318 340 360 Hyd Roller Cylinder Head Top End Engine Combo Kit

Don't spend hours figuring out which pieces and parts you need to get what you want from your engine. Speedmaster has already done the work for you; our Top-End engine kits will save you the time and hassle of mixing and matching components yourself. These kits are specifically designed to deliver the performance you want, at a better price than purchasing the parts separately.

Speedmaster creates unique & 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.

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Speedmaster

Speedmaster PCE281.2140 Compatible with Mopar and Compatible with Chrysler BB 383 440 265cc 74cc Hydraulic Flat Assembled Cylinder Heads

281 Cylinder Head : 281 Cylinder Head [Assembled]

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

Includes Valves &...

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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 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

Speedmaster PCE435.1074 Compatible with Mopar and Compatible with Chrysler SB 318 340 360 Hyd FT Cylinder Head Top End Engine Combo Kit

Don't spend hours figuring out which pieces and parts you need to get what you want from your engine. Speedmaster has already done the work for you; our Top-End engine kits will save you the time and hassle of mixing and matching components yourself. These kits are specifically designed to deliver the performance you want, at a better price than purchasing the parts separately.

Speedmaster creates unique & 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.

Compare

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Speedmaster

Bare Aluminum Cylinder Head Compatible with Mopar Big Block 361/383/400/413/426/440 265cc/74cc - Build-Your-Own Ready, Machined for Performance Springs and Stud Mount Rockers

[BUILD IT YOUR WAY] Bare aluminum cylinder head ready for your spring, valve, and retainer choice. 265cc intake / 74cc chamber for high-flow performance on Mopar Big Block.

[FITS Mopar Big Block 361/383/400/413/426/440] Standard-deck OEM bolt pattern. Verify pushrod length and intake port match. Designed for stud-mount rocker conversion.

[PRECISION MACHINED] CNC-ported intake/exhaust runners, hardened seats, machined for screw-in studs and guide plates. Ready for your component choice.

[ALUMINUM ADVANTAGES] Lighter than iron, dissipates heat faster, reduces detonation risk under boost or high compression. Premium-grade casting.

[SOLD INDIVIDUALLY] One bare cylinder head per order. Buy two for a complete pair. Springs, valves, guides, and rockers sold separately.

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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 Mopar La Heads deals are available from: Amazon, starting from $337.37.

The biggest discount we found is 15% on Speedmaster PCE281.2140 Compatible with Mopar and Compatible with Chrysler BB 383 440 265cc 74cc Hydraulic Flat Assembled Cylinder Heads (746-PCE281.2140) at Amazon.

The lowest price we found is $337.37 while the highest is $2,815.89. Prices for the best Speedmaster Mopar La Heads deals average at $1,473.48.

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

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