Gaterman Link-Bar Lifters are the perfect upgrade for your LS or LT! These lifters utilize a link-bar to secure them to each other. They system allows you to delete & remove the plastic OEM trays that are known to fail with performance LS & LT valvetrains. Max Recommend Spring Pressure 420# Open Max Recommend Engine RPM 7,400 Recommend 0.050" Preload +/- 0.010" Maximum Strength Forged Chrome Alloy Steel Body Hardened & Carburized Alloy Steel Body Heat Treated & Precision Mach...

The same high quality parts we use in our Smeding LS engines, now available in a balanced rotating kit! Start by selecting how much horsepower you plan to make, followed by your engine block's bore diameter, what stroke crankshaft you want, and then your desired piston volume! All rotating assemblies come with coated tri-metal race main & rod bearings, and the correct piston rings for your horsepower goals. The crankshaft will be digitally spun balanced to the weight of the components, on...

100% Fully CNC Ported 260cc Intake, 100cc Exhaust & 69cc Chambers Virgin A356 Aluminum Castings 6 Bolt Head Casting with Extra Strength Decks Advanced 11° Valve Angle for Maximum Flow & PTV Clearance 2.165” Intake Valve 21-4N Alloy & 1.60” Exhaust Valve 23-8N Super Alloy 0.210" Intake Free Drop & 0.250" Exhaust Free Drop 23-8N Alloy has the same high temp characteristics of “Inconel” w/o the brittleness Available Complete w/ Chromoly Retainers, Ti Retainers, or Bare w/ Valves...

Smeding Performance Crankshafts start out as a 4340 billet steel alloy core, are forged by non-twist machinery, shot peened to decrease surface stress, heat treated in increase tensile strength and finally nitrided to prevent surface wear. All Smeding Performance Crankshafts come with the reluctor wheel already installed for you! LS 4.000" 6-Cwt Crankshaft:4.000" Stroke6 Counterweight DesignGun Drilled Main JournalsStandard LS Wet Sump Snout4340 Forged High Tensile Strength Alloy1,300hp Rated...

Smeding Performance LS 6.125" 4340 Rods start out as a 4340 steel alloy billet, are shot peened to decrease surface stress and heat treated in increase tensile strength. All Smeding Performance LS 6.125" 4340 Rods have a long-life bronze bushing wrist pin and come standard with SP8740 7/16" fasteners for performance applications. LS 6.125" 4340 H-Beam:6.125" Length Center-to-Center4340 Forged High Tensile Strength AlloyBronze Bushed .927" Wrist Pin2.100" Precision Honed Crank PinSP8740 7/16"...

Remove the trapped steam & gasses from the two rear cylinders on your LS powerhouse with the Smeding 4 corner steam vent kit! We wanted a system that was ten times easier to install than our competitors, so we decided to make our own! Instead of using NPT 90 degree fittings that you have to crank into the standoffs to align properly, our system uses a swivel O-Ring design. This design allows the cylinder head standoffs to be perfectly aligned to the stainless steel tubing, ensuring a 100%...

Clears 4.125” stroke w/ steel rod Comes with all hardware, pick-up tube, gaskets & baffle sheet.

Rectangle Port R1: .615”/.615” Valve Lift w/ 1.7 Rocker 229/242 Duration @ .050” 112LSA + 4* Advance Rectangle Port R2: .618”/.615” Valve Lift w/ 1.7 Rocker 233/250 Duration @ .050” 113LSA + 5* Advance Rectangle Port R3: .622"/.622" Valve Lift w/ 1.7 Rocker 240/252 Duration @ .050" 112LSA + 4* Advance Rectangle Port R4: .624”/.615” Valve Lift w/ 1.7 Rocker 245/256 Duration @ .050” 113LSA + 5* Advance Rectangle Port R5: .622"/.622" Valve Lift w/ 1.7 Rocker .659"/.659" Valve Lift w/...

Max Recommend Spring Pressure 520# Open Max Recommend Engine RPM 7,800 Cold Forged Steel Body Heat Treated for Exceptional Wear Resistance Precision Ground Needle Roller Bearings with High Chromium Steel Axle Cold Forged Extra Long Piston, Precision Ground and Fitted High Flow Disc Style Quick Reacting Check Valve for Better Reaction Precision Oil Metering Assuring Proper Oiling to Rocker Arms Proprietary Tie-Bar System

Clears 4.125” stroke w/ steel rod Comes with all hardware, pick-up tube, gaskets & baffle sheet.

Clears 4.125” stroke w/ steel rod Has two 3/4” NPT drain back ports Comes with all hardware, pick-up tube, gaskets & baffle sheet.

Smeding Performance Crankshafts start out as a 4340 billet steel alloy core, are forged by non-twist machinery, shot peened to decrease surface stress, heat treated in increase tensile strength and finally nitrided to prevent surface wear. All Smeding Performance Crankshafts come with the reluctor wheel already installed for you! LS 4.125" 6-Cwt Crankshaft:4.125" Stroke6 Counterweight DesignGun Drilled Main JournalsStandard LS Wet Sump Snout4340 Forged High Tensile Strength Alloy1,300hp Rated...

Designing a custom camshaft is not as simple as selecting the valve lift, duration & overlap to match the engine. At Smeding Performance, we specialize and direct our focus to ensuring the correct lobe is selected for the engine’s application & combination. There are hundreds of different lobes available on the market today, each with different ramp rates. Two different lobes can have the same duration @ .050” & lobe lift, but the speed of which the lobe accelerates the lifter can...

Clears 4.125” stroke w/ steel rod Has two 3/4” NPT drain back ports Comes with all hardware, pick-up tube, gaskets & baffle sheet.

Turbo R2: .615”/.610” Valve Lift w/ 1.7 Rocker 229/232 Duration @ .050” 114LSA + 4* Advance Turbo R3: .624”/.615” Valve Lift w/ 1.7 Rocker 243/248 Duration @ .050” 114LSA + 2* Advance

IN STOCK & READY TO SHIP!!Smeding Performance is now offering Dart LSN SHP engines blocks in a ready to assemble package! This engine block is fully machined with cam bearings, freeze plugs & oil galley plugs installed. Cylinders have been deburred & stroker clearanced as well!  Dart PN: 31867211 4.125" Final Cylinder Bore Diameter CNC Plateau Honed w/ Dual Torque Plates CNC Parallel Surfaced Decks Cylinders Deburred Top & Bottom Stroker Clearanced up to 4.125" w/ Steel Rods ...