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This big block Chevy Engine is exactly what a big block should be. Power Power Power. Look at the graph and you can tell. Those torque numbers will impress even the seasoned hobbyist. Don't get me wrong, this engine is very street friendly, yet aggressive and unapologetic for it. For you muscle car purists who need a big block in your early 70's muscle car, this brute is for you.


• Individually dyno tested and tuned with print out
• Strong exhaust tone
• Requires 2,200 stall converters
• Works with power brakes
• Requires 91 Octane fuel
• Requires electric fuel pump
• 2 year limited warranty, unlimited mileage
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Smeding 540 Extreme Features
Block: Gen VI, 4 Bolt Mains, C.N.C machined, 4.500" Bore, Standard Deck Height, 1 piece seal
Crankshaft: 4340 Steel, Non-Twist Forging, Micro Polished, and Chamfered, Internal Balance, 4.250" Stroke
Rods: 4340 Steel "H" Beam with 7/16" ARP Cap Bolts, 6.385" Length
Pistons: Light Weight Forged, 8cc Dome, 10/0 Compression, Full Floating
Rings: Low Friction Single Moly 1/16” x 1/16” x 3/16”
Camshaft: Custom Ground Hydraulic Roller .544”/.573” lift 238°/248° Duration @.050”
Rocker Arms: 1.7 Ratio, Full Roller To Reduce Friction
Intake: Performer RPM Air Gap
Cylinder Heads: Smeding / AFR, 305cc Intake Port, 2.25" / 1.88" valves, 119cc Chambers
Carburetor: Holley 850, Dual Feed, Double Pumper, Calibrated and Tuned
Distributor: High Energy, HEI Polished Aluminum Housing
Warranty: Limited 2 Year, Unlimited Mileage
Smeding 540 Extreme Options
Standard Flywheel: Add $175
Aluminum Flywheel: Add $395
Polished Intake Manifold: Add $150
Electronic Fuel Injection: Call
Polish Package:
Includes: Polished Intake Manifold, polished cylinder heads, polished aluminum timing cover, and stainless steel A.R.P Bolts
Add $850
Early Chevelle Oil Pan: Add $100
Accessory Drives:
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With A/C and With Power Steering $2,245
With A/C and Without Power Steering $1,895
Without A/C and With Power Steering $1,845
Without A/C and Without Power Steering $1,495