Pro Star™ 509 CID Big Block Chevy Shortblock featuring DART™ Big M Block

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Online Price $3,895.00

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Quick Overview

•Dart™ Big M Block
•Forged pistons
•4.00 Stroke, 4.500 Bore

This 509 CID shortblock engine is brand new and assembled with high quality components.

BBC High Performance Crate Engine Shortblock

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  • BBC High Performance Crate Engine Shortblock
  • BBC High Performance Crate Engine Shortblock
  • BBC High Performance Crate Engine Shortblock
  • BBC High Performance Crate Engine Shortblock

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Online Price $3,895.00

Details

509 CID Big Block engine featuring a new Dart™ Big M block. This shortblock is supplied with bearings, crank, pistons and rods. These blocks are machined and assembled to exact tolerances with the highest quality parts.

This Pro Star™ 509 shortblock is supplied with 2618 forged pistons, 4340 I-Beam rods and a Scat 9000 series cast crank (4340 forged crank with H-beam rods optional).

Dart™ Big M blocks have many features that make them superior to their competition including a priority main oiling system, siamese cylinder bores with extra-thick walls and a variety of other benefits (see the Block section for more details). These new Dart™ blocks are the obvious choice for serious performance and durability.

Additional Information

Block NEW Dart™ Big M Block
Featuring upgrades including...

True Priority Main Oiling System
Siamese cylinder bores with extra-thick walls that resist cracking and improve ring seal for more power
•Extra thick decks ensure reliable head gasket seal
•Blind head bolts don't go through to water jacket
Splayed outer bolts on middle main bearing caps
•All OE bolt holes for starter, clutch ball, etc...
•MADE IN THE USA
Short Block Features Deck height 9.800"
Rods 6.385
Stroke 4.00
Bore 4.500
2618 Forged Pistons
Scat 9000 series Cast Crank (Optional 4340 forged crank)
4340 Forged Rods
Brass frost plugs
Moly piston rings
HP cam bearings
Internally balanced
Camshaft Advertised Duration Optional
Camshaft Duration @ .050" Optional
Camshaft Lift Optional
Heads Not supplied
Additional Parts Included N/A
Options *Compression ratios listed are based on a cylinder head with 121cc combustion chambers.
Horsepower N/A
Torque N/A
Warranty Click here for warranty overview