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The 347 Cobra is the big brother of the 347 Extreme. We decided to make a completely new package instead of just adding upgrades to the Extreme. From the crankshaft all the way up to the carburetor, the 347 Cobra has been redesigned for greater power and performance. At over 440 horsepower, the benefits of this engine are well worth the upgraded cost. If you want maximum out-put from a 347 small block, this engine is for you.

• Dyno tuned and calibrated with print out
• Very strong exhaust tone
• Requires standard transmission or 2,500+ stall converter
• Works with power brakes
• minimum vacuum for power brakes
• Requires 91 octane fuel
• Accepts mechanical fuel pump
• Recommended for light vehicles only
• 2 year limited warranty, unlimited mileage
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Smeding 347 Cobra Special Features
Block: Splayed Cab Four Bolt Mains, C.N.C Machined, 4.000" Bore, Scalloped Water Jackets, One Piece Rear Main Seal
Crankshaft: Forged 4340 Steel with 3.400" Stroke, Micro Polished, Chamfered, Balanced with 28oz Balancer
Rods: 4130 Forged “I” Beam With 3/8" ARP WaveLoc Bolts, 5.315" length, Ballanced in Sets
Pistons: Forged, 10.2 to 1 compression, Wrist Pin Below Ol Ring
Rings: Low Friction, Single Moly
Camshaft: Custom Ground Hydraulic Roller .508”/.532” lift 222°/232° Duration @.050”
Rocker Arms: 1.5 Ratio, Full Roller To Reduce Friction
Intake: Victor Jr. Single Plane
Cylinder Heads: Smeding/AFR 2.02"/1.60" Stainless Valves, 185cc Intake Port, 60cc Chambers
Carburetor: Holley 650 Dual Feed, Double Pumper
Distributor: Hall Effect Electronic
Warranty: 2 Year Limitd Warranty, Unlimited Mileage
Smeding 347 Cobra Special Options
Standard Flywheel: Add $175
Aluminum Flywheel: Add $395
Polished Intake Manifold: Add $150
Eight Stake E.F.I: Call
Polish Package:
Includes: Polished Intake Manifold, polished cylinder heads, polished aluminum timing cover, and stainless steel A.R.P Bolts
Add $850
Rear Sump Oil Pan: Add $100
Accessory Drives:
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With A/C and With Power Steering $2,295
With A/C and Without Power Steering $1,945
Without A/C and With Power Steering $1,895
Without A/C and Without Power Steering $1,545