Block: Smeding Heavy Duty 4 Bolt Mains, 9.025" Deck Height, 1 Piece Seal, 4.000" BoreCrankshaft: Smeding 4340 Forged Steel, Internal/External Balance, 3.800" StrokeRods: Smeding 5140 Forged Steel I-Beam with 3/8" Bolts, 5.700" LengthPistons: UEM Custom Hypereutectic Aluminum, 13.5cc Dish, Coated SkirtsRings: Plasma-Moly Top, Low Friction Oil, 5/64" x 5/64" x 3/16"Compression Ratio: 10.0:1 w/ 64cc Heads, 9.3:1 w/ 72cc HeadsWarranty: 3 Year, Unlimited Miles Camshaft Kit Includes: camshaft, hydr...

With the knock-out punch of a big-block in a small-block package, this engine has become our most popular Chevy stroker. Gobs of tire-frying low end torque and a very noticeable exhaust thump are the signature for this engine. Do not let the big power numbers scare you, this is a street engine through and through with some bad boy thrown into the mix. This engine produces a very broad, strong torque curve that is good not only for cruising, but for high performance as well. Power brakes and o...

Why buy a rebuilt engine or some production line 350" when you can have a BRAND NEW 383" for nearly the same price? And do not think this is some cheapie engine, these are 100% completely new engines built with quality parts like a new 4 bolt main block, forged crankshaft & rods, roller cams & roller valvetrain. These engine are built with the same details Smeding Performance has become known for, QUALITY! Built using all 100% brand new parts, including the block, this engine was desi...

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" Eliminator 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 ...

Do you want muscle under your hood and driveability too? Here it is, the 383" Hot Rod. Featuring a broad power range that is excellent for all cars and trucks, even those with automatic overdrives, the 383" Hot Rod also has the exhaust tone that has a lope to it for that hot rod sound. Good for every day cruising, and hot rodding too. With a wide range of available options, you can customize it to your liking. And like all Smeding Performance engines, it is broken-in, calibrated, and tested f...

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 camshaft, hydr...

The 383" Cruiser engine is our daily driver of the bunch. This engine is built with a mild hydraulic roller camshaft for a very slight idle, easy driving and great fuel economy. Because it is so mild mannered, the 383" Cruiser works well with automatic overdrive transmissions and stock torque converters. Get out on the road and cruise with this Cruiser, the easy driving engine. Block: Smeding Heavy Duty 4 Bolt Mains, 9.025" Deck Height, 1 Piece Seal, 4.000" BoreCrankshaft: Smeding 4340 Forge...

The Smeding 427" LS Short Block is offered in three 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 mor...

The Smeding 427" LS Long Block is offered in three 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...

If you are a big-block sort of guy, then you are really going to like our smallest rat motor; 540" Cruiser. Using a proven combination of top-quality parts with meticulous machining and assembly, then dyno tuning and testing each one, this engine puts out enough horsepower and torque to melt the pavement with the slightest tickle of the throttle.Like all Smeding Performance crate engines, the 540" Cruiser runs on premium pump gas and works with either a stick or automatic transmission, even w...

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...

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" Mighty Mouse is the engine your car needs. Check out our custom options and packages below to find your perfect combination! Block: Dart SHP 4 Bolt Mains, 9.025" Deck Height, 1 Piece Seal, 4.125" BoreCrankshaft: Smeding 4340 Forged Steel, Internal Balan...

This is the most powerful, naturally aspirated, pump gas, hydraulic roller, true street engine we have to offer. Everything about this engine is just epic. The cubic inch, the cylinder heads, the camshaft, everything is turned up to the max, yet this beast still makes peak power under 6,000rpm, has a very street friendly valve train and runs great on pump gas. It truly is a B.M.F'r. Like all Smeding Performance engines it is backed by our industry leading 3 year/unlimited mile warranty. Block...

So our 540" Extreme isn’t a big enough big-block for you? Let us introduce the 572" Extreme...Over 700 rampaging horsepower and 700 traction-annihilating lb/ft of torque, all on pump gas! Have we got your attention? Mixing all of the right severe-duty parts into a potent, streetable combination, along with precise machining and balancing, all hand-assembled with the skill of more than 30 years of craftsmanship, you have an engine that makes more normally-aspirated power with a single 4v carb ...

Block: Dart SHP 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 with 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: 10.7:1 w/ 64cc Heads, 10.0:1 w/ 72cc HeadsWarranty: 3 Year, Unlimited Miles Camshaft Kit includes camshaft, hydraulic roller lifters...

The Smeding Performance 572" Blown, for the guy that wants to be King Kong of the street, it is the biggest and baddest engine we produce. If you love the look of a polished 8-71 blower and dual-quads sticking through the hood, and that unmistakable horsepower-inducing whine of a blower, this is the engine for you. Using top quality parts, the latest in engine machining techniques, along with precision engine assembly, ensures you of being the baddest boy on the block. Checking in at 900 hors...