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FREE SHIPPING ON PARTS ORDERS OVER $999
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...
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 ...
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...
Nothing attracts attention like a fully polished 8-71 blower poking out of the hood. With the thump of the exhaust and the whine of the blower, people will know you have arrived. This engine produces 800 tire burning horsepower and is streetable. "Tame?" give me a break, we are talking about a blown 540" cubic inch Chevy here. This engine will put you in the back of your seat and make your passengers look for something to hold on to. Block: Dart Big M Sportsman, 4.500" Bore, 9.8" Deck Height...
Block: Dart Big M Sportsman, 4.600" Bore, 10.2" Deck HeightCrankshaft: Smeding 4340 Forged Steel, Internal Balance, 4.750" StrokeRods: Smeding 4340 Forged Steel H-Beam with 7/16" Bolts, 6.700" LengthPistons: JE Forged Aluminum, Flat Top, 10.5:1 Comp w/ 120cc ChambersRings: Plasma-Moly Top, Low Friction Oil, 1/16" x 1/16" x 3/16"Warranty: 3 Year, Unlimited Miles Camshaft Kit Includes: camshaft, hydraulic roller lifters, roller timing set, & thrust plate - Installed Cam Specs: .680”/.680” L...
Block: Dart Big M Sportsman, 4.600" Bore, 10.200" Deck HeightCrankshaft: Smeding 4340 Forged Steel, Internal Balance, 4.700" StrokeRods: Smeding 4340 Forged Steel H-Beam with 7/16" Bolts, 6.700" LengthPistons: JE Forged Aluminum, Flat Top, 10.5:1 CompressionRings: Plasma-Moly Top, Low Friction Oil, 1/16" x 1/16" x 3/16" Camshaft: Smeding Hydraulic Roller, .680”/.680” Lift, 271°/283° Duration @ .050”Rocker Arms: Scorpion 1.7 Ratio, 7/16" Stud, Full-RollerCylinder Heads: Smeding 360cc Intake Po...
Block: Dart Big M Sportsman, 4.500" Bore, 9.800" Deck HeightCrankshaft: Smeding 4340 Forged Steel, Internal Balance, 4.250" StrokeRods: Smeding 4340 Forged Steel H-Beam with 7/16" Bolts, 6.385" LengthPistons: JE Forged Aluminum, Flat Top, 9.0:1 CompressionRings: Plasma-Moly Top, Std Friction Oil, 1/16" x 1/16" x 3/16" Camshaft: Smeding Hydraulic Roller, .614”/.614” Lift, 239°/249° Duration @ .050”Rocker Arms: Scorpion 1.7 Ratio, 7/16" Stud, Full-RollerCylinder Heads: Smeding 315cc Intake Port...
Block: Dart Big M Sportsman, 4.560" Bore, 10.200" Deck HeightCrankshaft: Smeding 4340 Forged Steel, Internal Balance, 4.375" StrokeRods: Smeding 4340 Forged Steel H-Beam with 7/16" Bolts, 6.535" LengthPistons: JE Forged Aluminum, Flat Top, 9.0:1 CompressionRings: Plasma-Moly Top, Std Friction Oil, 1/16" x 1/16" x 3/16" Camshaft: Smeding Hydraulic Roller, .614”/.614” Lift, 253°/263° Duration @ .050”Rocker Arms: Scorpion 1.7 Ratio, 7/16" Stud, Full-RollerCylinder Heads: Smeding 360cc Intake Por...
Block: Dart Big M Sportsman, 4.500" Bore, 9.8" Deck HeightCrankshaft: Smeding 4340 Forged Steel, Internal Balance, 4.250" Stroke - Dual KeyRods: Smeding 4340 Forged Steel H-Beam with 7/16" Bolts, 6.385" LengthPistons: JE 2618 Forged Aluminum, Coated Skirts, 9.0:1 Comp w/ 120cc ChambersRings: Plasma-Moly Top, Std Friction Oil, 1/16" x 1/16" x 3/16"Warranty: 3 Year, Unlimited Miles Camshaft Kit Includes: camshaft, hydraulic roller lifters, roller timing set, & thrust plate - Installed Cam S...
Block: Dart Big M Sportsman, 4.560" Bore, 10.200" Deck HeightCrankshaft: Smeding 4340 Forged Steel, Internal Balance, 4.375" Stroke - Dual KeyRods: Smeding 4340 Forged Steel H-Beam with 7/16" Bolts, 6.535" LengthPistons: JE 2618 Forged Aluminum, Coated Skirts, 9.0:1 Comp w/ 120cc ChambersRings: Plasma-Moly Top, Std Friction Oil, 1/16" x 1/16" x 3/16"Warranty: 3 Year, Unlimited Miles Camshaft Kit Includes: camshaft, hydraulic roller lifters, roller timing set, & thrust plate - Installed Ca...
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