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AFR 260cc LS3 Mongoose cylinder heads are 100 percent 5-axis, CNC-ported, and feature titanium retainers, A356 aluminum castings, and Pac Racing springs. These CARB certified heads require 4.000 in. or larger bore applications on up through 454 cu. in. engines operating at or below 7,000 rpm—and flow over 380 cfm at 0.700 in. lift and are designed primarily for street and strip applications. Other structural features include Air Flow Research's trademark 3/4 in. thick head deck, reinforced rocker stud bosses, and thick wall runners provide unparalleled durability. Use of AFR stud girdles and full roller rocker arms are required. When it comes to building power, start with these AFR 260cc LS3 Mongoose cylinder heads.
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$3,011.40
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$3,490.20
Edelbrock Victor LS3 Top-End kits deliver the ultimate in high performance for street/strip applications. To get great performance out of any engine, all of the components must work together, and for over 30 years, Edelbrock Total Power Packages have solved the parts-matching puzzle. Now, their dyno-matched component Power Package Top-End kits, will get you the best Edelbrock performance in-one-box, under one part number, with "no guesswork" involved. And all of the performance marks are real results from engine dynamometer tests on factory short blocks. Edelbrock Victor Jr. LS3 Top-End kits feature: * Victor Jr. intake manifold * Victor cylinder heads * Rollin' Thunder hydraulic roller camshafts with aggressive profiles for maximum power while retaining great drivability * MSD Ignition Control Module Installation notes: * Proper installation is the responsibility of the installer. Improper installation will void your warranty and may result in poor performance and engine or vehicle damage. * Use RTV sealant to properly seal end seals--DO NOT USE end seals gaskets * Sealant must be used on intake bolt threads if the threads extend into lifter valley or coolant passage * NPT/pipe thread fittings require the use of PTFE tape or paste on threads to ensure proper seal * DO NOT overtighten NPT/pipe fittings, this may cause the aluminum to crack around the fitting boss. NPT/pipe thread is a tapered thread.
Not Yet Reviewed
$5,900.95
Edelbrock Performer RPM LS3 Top-End kits deliver improved performance in 1,500 to 6,500 rpm street application range. To get great performance out of any engine, all of the components must work together, and for over 30 years, Edelbrock Total Power Packages have solved the parts-matching puzzle. Now, their dyno-matched component Power Package Top-End kits, will get you the best Edelbrock performance in-one-box, under one part number, with "no guesswork" involved. And all of the performance marks are real results from engine dynamometer tests on factory short blocks. Edelbrock Performer RPM LS3 Top-End kits feature: * Performer RPM intake manifold * E-CNC cylinder heads * Pushrods * Rollin' Thunder hydraulic roller camshafts * Complete bolt kits * Edelbrock gasket set * MSD ignition control module Installation notes: * Proper installation is the responsibility of the installer. Improper installation will void your warranty and may result in poor performance and engine or vehicle damage. * Use RTV sealant to properly seal end seals--DO NOT USE end seals gaskets * Sealant must be used on intake bolt threads if the threads extend into lifter valley or coolant passage * NPT/pipe thread fittings require the use of PTFE tape or paste on threads to ensure proper seal * DO NOT overtighten NPT/pipe fittings, this may cause the aluminum to crack around the fitting boss. NPT/pipe thread is a tapered thread.
Not Yet Reviewed
$5,494.95
Brodix BR 3 Chevy LS cylinder heads are the industry's most durable replacement for LS3-style cylinder heads, featuring a 280cc intake which flows over 348 cfm! These all-new heads utilize a 15 degree valve angle, a 71cc combustion chamber—with a 2.165 in. intake and 1.590 in. exhaust valve combination. The cylinder heads accept all standard LS3 components and share each of the legendary Brodix features, including easily repairable A-356 virgin aluminum alloy and the strongest deck surface in the industry. They are available bare or assembled. Order the model designed for your vehicle.
Not Yet Reviewed
$2,144.99
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$4,810.99
Are you still confused as to which parts you need to get the performance you want? Quit wasting time and second-guessing yourself. Trick Flow® has already done the work for you with GenX® Top-End Engine kits for GM LS. Designed and dyno-tested to deliver the performance you crave for less than purchasing the parts separately, these kits save time and money! What's in these GenX® Top-End Engine kits? * A pair of Trick Flow® GenX® street/strip cylinder heads * A specially matched hydraulic roller cam * Some kits contain roller rocker arms * Pushrods * Head gaskets * Head bolts * Exhaust gaskets * Balancer bolt
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$3,948.91
Mast Motorsports offers Factory Mast cylinder heads for a variety of Chevrolet small block LS and LT engines from the early 2000s and up. The aluminum rectangular heads are available bare or assembled in a wide range of combustion chamber volumes, intake and exhaust valve sizes, and other options. Combustion chambers and runners are CNC-machined for precision and performance; and valve guides are bronze or powdered metal material. Examine the specs and select the cylinder heads recommended for your application.
Not Yet Reviewed
$2,399.00
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$4,100.00
Mast Motorsports offers Black Label cylinder heads for a variety of Chevrolet small block LS and LT engines from the late 1990s and up. The aluminum rectangular or cathedral port heads are available bare or assembled in a wide range of combustion chamber volumes, intake and exhaust valve sizes, and other options. The Mast cylinder head product line is completely manufactured from a raw casting to a finished cylinder head. Mast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality. You're assured of getting the highest level of quality and performance on the market. Examine the specs and select the Black Label cylinder heads recommended for your application.
Not Yet Reviewed
$3,849.00
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$4,299.00
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