383" Extreme 450hp

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 overdrive automatics work great with this powerful combination too.

Block: Smeding Heavy Duty 4 Bolt Mains, 9.025" Deck Height, 1 Piece Seal, 4.000" Bore
Crankshaft: Smeding 4340 Forged Steel, Internal/External Balance, 3.800” Stroke
Rods: Smeding 5140 Forged Steel I-Beam with 3/8" Bolts, 5.700" Length
Pistons: UEM Custom Hypereutectic Aluminum, Dish, 9.8:1 Compression, Coated Skirts 
Rings: Plasma-Moly Top, Low Friction Oil, 5/64” x 5/64” x 3/16”
Camshaft: Smeding Hydraulic Roller, .510”/.521” Lift, 231°/236° Duration @ .050”
Rocker Arms: Smeding 1.5 Ratio, 3/8" Stud, Full-Roller
Intake: Mid Rise, Air-Gap Dual Plane
Cylinder Heads: Smeding Aluminum, 180cc Intake Port, 2.02"/1.60" Valves, 65cc Chambers
Warranty: 3 Year, Unlimited Miles

Torque Converter: 2,400-2,800rpm Stall Recommended