Utilizing a big bore engine block and a medium stroke forged crankshaft, this engine loves to rev! Using only top of the line components like a fully forged rotating assembly, hydraulic roller camshaft and aluminum heads, the 406" Long Block is the engine your car needs. Check out our custom options and packages below to find your perfect combination! Block: Smeding Heavy Duty 4 Bolt Mains, 9.025" Deck Height, 1 Piece Seal, 4.125" BoreCrankshaft: Smeding 4340 Forged Steel, Internal/External B...

The Power Adder SBC Long Block comes standard with many features designed to handle high horsepower levels (Turbo, Blower, Nitrous)The Dual Keyway option is highly recommended for supercharger applications.The Blower Balancer has both the 3 bolt SBC pattern and the standard 2.80" Chrysler Blower Bolt Pattern & extra thick BBC Hub.  406" Specs:Block: Smeding Heavy Duty 4 Bolt Mains, 9.025" Deck Height, 1 Piece Seal, 4.125" BoreCrankshaft: Smeding 4340 Forged Steel, Internal/External Balanc...

The Power Adder SBC Short Block comes standard with many features designed to handle high horsepower levels (Turbo, Blower, Nitrous)The Dual Keyway option is highly recommended for supercharger applications.The Blower Balancer has both the 3 bolt SBC pattern and the standard 2.80" Chrysler Blower Bolt Pattern & extra thick BBC Hub. Compression Ratio calculated with 65cc cylinder heads 406" Specs:Block: Smeding Heavy Duty 4 Bolt Mains, 9.025" Deck Height, 1 Piece Seal, 4.125" BoreCrankshaf...

Block: Smeding Heavy Duty 4 Bolt Mains, 9.025" Deck Height, 1 Piece Seal, 4.125" BoreCrankshaft: Smeding 4340 Forged Steel, Internal/External Balance, 3.800" StrokeRods: Smeding 5140 Forged Steel I-Beam with 3/8" Bolts, 5.700" LengthPistons: JE Custom 2618 Forged Aluminum, 18cc Dish, Coated SkirtsRings: Stainless Steel Top, Napier 2nd, Low Friction Oil, 1.2/1.2/3.0Compression Ratio: 10.0:1 w/ 64cc Heads, 9.3:1 w/ 72cc HeadsWarranty: 3 Year, Unlimited Miles Camshaft Kit Includes: Smeding 5150 ...

The Smeding 8-Stack EFI gives you the best of both worlds, the classic looks of the vintage 60's racing and the efficiency of today's modern electric fuel injection. This unit comes standard with the raw vintage finish but it is also available in a high polished finish. Don't worry about tuning because every engine comes individually dyno tuned on our in-house dyno. This unit is so clean and simple that those who are familiar with the classic Weber setup often confuse it with our modern fuel ...

The quick-revving 427" Cobra is a performance engine that is not for the faint of heart. Because it is based on a 351" Windsor race block, it is approximately 140 pounds lighter than the older big blocks. From the block, to the crank, to the rods, to the induction system, the 427" Cobra is built to be an all-conquering powerhouse, yet is still a street engine that runs on 91-octane pump gas. With its lumpy hydraulic roller cam, the exhaust note is one that says “don’t mess with me“, and has t...

The Smeding 427" LS Short Block is offered in two different configurations! Each package is meticulously assembled with the highest attention to detail and precision. Bearing clearance & ring gaps are measured, verified and set for each application's unique demands. Two different piston volumes are available, please select a horsepower rating and then the volume option will appear. We can also assist with selecting the correct camshaft for your build and goals! Call 210-446-0960 for more ...

The Smeding 427" LS3 Long Block is offered in two different configurations! Each package is meticulously assembled with the highest attention to detail and precision. Bearing clearance & ring gaps are measured, verified and set for each application's unique demands. Two different piston volumes are available, please select a horsepower rating and then the volume option will appear. We can also assist with selecting the correct camshaft for your build and goals! Call 210-446-0960 for more ...

The Smeding 427" LS7 Short Block is offered in two different configurations! Each package is meticulously assembled with the highest attention to detail and precision. Bearing clearance & ring gaps are measured, verified and set for each application's unique demands. Two different piston volumes are available, please select a horsepower rating and then the volume option will appear. We can also assist with selecting the correct camshaft for your build and goals! Call 210-446-0960 for more...

The Smeding Performance 427" Mighty Mouse combines a heavy-duty 4-bolt main block, forged 4340 steel rotating assembly, hydraulic roller camshaft, and high-flow aluminum cylinder heads to deliver outstanding street and strip performance. With exceptional torque, responsive power delivery, and a 3-year unlimited-mile warranty, the Mighty Mouse is ready for whatever you throw at it. Call the Smeding Performance sales team today and put 560 horsepower in your project. Block: Smeding Heavy Duty ...

Equipped with a 4.125" big bore engine block and a 4.000" stroke forged crankshaft, this engine packs a punch! Using only top of the line components like a fully forged rotating assembly, hydraulic roller camshaft and aluminum heads, the 427" Long Block is the engine your car needs. Check out our custom options and packages below to find your perfect combination! Block: Smeding Heavy Duty 4 Bolt Mains, 9.025" Deck Height, 1 Piece Seal, 4.125" BoreCrankshaft: Smeding 4340 Forged Steel, Interna...

Block: Smeding Heavy Duty 4 Bolt Mains, 9.025" Deck Height, 1 Piece Seal, 4.125" BoreCrankshaft: Smeding 4340 Forged Steel, Internal Balance, 4.000" StrokeRods: Smeding 4340 Forged Steel H-Beam w/ ARP2000 7/16" Bolts, 6.000" LengthPistons: Custom 2618 Forged Aluminum, 19cc Dish, Coated SkirtsRings: Stainless Steel Top, Napier 2nd, Low Friction Oil, 1.2/1.2/3.0Compression Ratio: 10.5:1 w/ 64cc Heads, 9.7:1 w/ 72cc HeadsWarranty: 3 Year, Unlimited Miles Camshaft Kit Includes: Smeding 5150 Steel...

Block: Smeding Heavy Duty w/ Billet 4 Bolt Mains, 4.125" Bore, 9.5" Deck HeightCrankshaft: Smeding 4340 Forged Steel, Internal Balance, 4.000” StrokeRods: Smeding 4340 Forged Steel H-Beam with 7/16" Bolts, 6.200" LengthPistons: Custom 2618 Forged Aluminum, 10.0:1 Compression, Coated SkirtsRings: Stainless Steel Top, Napier 2nd, Low Friction Oil, 1.2/1.2/3.0Rocker Arms: Smeding 1.6 Ratio, 7/16" Stud, Full-RollerCylinder Heads: Smeding Aluminum 205cc, 2.08"/1.60" Valves, 58cc Chambers Warranty:...

Block: Smeding Heavy Duty w/ Billet 4 Bolt Mains, 4.125" Bore, 9.5" Deck HeightCrankshaft: Smeding 4340 Forged Steel, Internal Balance, 4.000" StrokeRods: Smeding 4340 Forged Steel H-Beam with 7/16" Bolts, 6.200" LengthPistons: Custom 2618 Forged Aluminum, 27.5cc Dish Volume, Coated SkirtsRings: Stainless Steel Top, Napier 2nd, Low Friction Oil, 1.2/1.2/3.0 Camshaft Kit includes camshaft, hydraulic roller link-bar lifters, roller timing set & thrust plate - Installed Cam Specs:460hp: .508...

Remember when the 427" Ford was the king of the street and track? It is more than 60 years later and now you can now have the same cubic inches in a lightweight, smaller package that makes more power than the original big-blocks did. Because it is based on a 351" Windsor, the Smeding Performance 427" Windsor will fit perfectly in your Mustang, kit car or hot rod.  Block: Smeding Heavy Duty w/ Billet 4 Bolt Mains, 4.125" Bore, 9.5" Deck HeightCrankshaft: Smeding 4340 Forged Steel, Internal B...

Each Smeding 441" LS is meticulously assembled with the highest attention to detail and precision. Bearing clearance & ring gaps are measured, verified and set for each application's unique demands. We can also assist with selecting the correct camshaft for your build and goals! Call 210-446-0960 for more information. Block: Smeding Hvy Dty Iron 6-Bolt, 7/16" Head Threads, 7/16" Main Bolts, 4.125" BoreCrankshaft: Smeding 8-Cwt 4340 Forged Steel, Internal Balance, 4.125" Stroke, 58xRods: S...