Blocks/Cranks

These Supercharged series dampers place the powerful protection of ATI Super Damper inside of the crankshaft blower pulley. Specially designed for supercharged 350ci LS engines.

• Made in the USA• Premium Iron Alloy• 4.125 Bore Size• 350 or 400 Mains• 9.025 Deck Height• Standard Cam Location• Standard Small Block Cam Diameter• 2-Piece Rear Main Seal• .842 o.d. Lifter Bore...

These brand new Chevrolet Performance 7.0L LS7 are manufactured from 319-T5 aluminum alloy with pressed-in sleeves, a production oiling system, 6-bolt dowel-located steel main bearing caps, and a 4.125 in. finished cylinder bore that will accept any LS...

Small Block Chevy Specifications:Material: Superior iron alloyBore: 4.000" (unfinished)Bore/Stroke: 4.165" x 3.750" (max recommended)Cam Bearing Bore ID: SBC 2.00"Cam Bearings: Specially-coated & grooved with three oil...

FREE SHIPPING!! (Free Shipping means free truck freight anywhere in the lower 48 US).  Dart’s Little M Sportsman block is the affordable alternative for sportsman racers and serious street performance.The Sportsman block shares most of the...

427 CI Short Block (6CW) LS3/LS7 CompatibleInternally BalancedSpecial High Performance LS NEXT Dart Block4.125” Bore x 4.000” StrokePlate Honed CylindersForged 4340 Steel Crankshaft (6 Counterweight)Forged 4340 H-Beam Rods –...

Dart's 427 cubic inch Chevy short block package has been rigorously tested and carefully designed and assembled by the same builders that build Dart's high performance racing engines. 10.5:1 compression with 72cc chamber heads 11.4:1...

Dart 4340 forged BBC fully counterweighted crankshaft Available strokes: 4.250″, 4.375″, 4.500″ • 8 counterweights. • Precision machined radius. • Thicker flanges. • Highly polished journals. • 1 or 2...

The Dart Big M big block Chevy cast iron bare blocks no-compromise design solves the problems that have plagued big blocks for the years. The Dart Big M features extra-thick cylinder walls, and are available with a choice of different deck heights and...

The Dart Big M big block Chevy cast iron bare blocks no-compromise design solves the problems that have plagued big blocks for the years. The Dart Big M features extra-thick cylinder walls, and are available with a choice of different deck heights and...

The Dart Big M big block Chevy cast iron bare blocks no-compromise design solves the problems that have plagued big blocks for the years. The Dart Big M features extra-thick cylinder walls, and are available with a choice of different deck heights and...

What is the foundation for a better big block build? It's Dart's Big M Sportsman Big Block Chevy Cast Iron Bare Blocks of course! Dart engineered the Big M to be the strongest, most reliable, and easiest to build big blocks on the market. Hey, engine...

What is the foundation for a better big block build? It's Dart's Big M Sportsman Big Block Chevy Cast Iron Bare Blocks of course! Dart engineered the Big M to be the strongest, most reliable, and easiest to build big blocks on the market. Hey, engine...

FREE SHIPPING!! (Free Shipping means free truck freight anywhere in the US). Buy this block and not only receive free shipping but a $100.00 credit with Patterson Racing to be applied towards a future purchase. Dart's Little M block is cast from premium...

EN III Fully Counterweighted Crankshaft • 8 counterweights.• Long and short snouts available.• Heavy duty rod cheeks.• Small hole through the rod pin.• Rough balanced @ 1780 grams.• No mallory required.• 4340 Billet...

LS Next Aluminum Block (4.125”) These blocks have all the cool features that Dart introduced in the cast iron version. With all new designed tooling and proprietary RMR alloy, blocks are supplied with steel billet main caps, ductile iron cylinder...

You get fully assembled Dart cylinder heads, valve covers, an intake manifold, all gaskets needed for installation, spark plugs, and head bolts for a worry-free, proven performance setup! Part Type:Cylinder Head Combos Product Line:Dart Pro 1 Aluminum...

Big Block Chevy Big M Engine Block 4.560'' Bore 9.800'' Deck Height Ductile Iron Main Caps   Rear Main Seal Style 2-piece Cam Bearings Included No Cylinder Bore as Shipped (in.) 4.55 Cylinder Bore Diameter (in.) 4.56 Deck Height...