Chevy R20 Engine Blocks

Get an exact fit for your

Chevy R20

Year

Choose Year

Year

Make

Chevy

Make

Model

R20

Model

Select Main Journal Style

All

400 mains

454 mains

350 mains

LS mains

302 mains

Ford 351 Cleveland

38 products

Sort By:

Clear All

Fitment

Chevy R20

Products

BluePrint Engines |

#227BPP12110340

BluePrint Engines BPP12110340 SBF Block, 8.200 Deck x 4.000 Bore

Main Journal Style:

302 mains

Deck Height:

8.200"

Material Type:

Cast Iron

$2,899.00

/each

BluePrint Engines |

#227BPP12110341

BluePrint Engines BPP12110341 SBF Block, 8.200 Deck x 4.000 Bore

Main Journal Style:

302 mains

Deck Height:

8.200"

Material Type:

Cast Iron

$2,599.00

/each

BluePrint Engines |

#227BPP12110342

BluePrint Engines BPP12110342 SBF Block, 8.200 Deck x 4.125 Bore

Main Journal Style:

302 mains

Deck Height:

8.200"

Material Type:

Cast Iron

$2,599.00

/each

BluePrint Engines |

#227BPP12110343

BluePrint Engines BPP12110343 SBC Block, 4.125 Bore, 350 Mains

Main Journal Style:

350 mains

Deck Height:

9.025"

Material Type:

Cast Iron

$2,299.99

/each

BluePrint Engines |

#227BPP12110345

BluePrint Engines BPP12110345 SBC Block, 4.125 Bore, 400 Mains

Main Journal Style:

400 mains

Deck Height:

9.025"

Material Type:

Cast Iron

$2,299.99

/each

Small Block and Big Block Chevy Engine Flexplate Guide

Over several generations of small block Chevy (and big block Chevy) engines there have been several changes that dictate what flexplate works with them. We’ll help you determine the correct flexplate for your Chevy engine in this buyer’s guide.

How to Paint Engine Blocks- Complete Guide

Make Your Engine Stand Out with These Engine Block Painting Tips

Chevy Small Block Casting Numbers

Decode small block Chevy engine suffix codes and block casting numbers with our SBC decoding info guide. Learn how to find and decipher your small block Chevy engine codes quickly and easily!

Small Block Chevy Head Identification Guide | Casting Numbers Explained

Identify SBC heads using casting numbers, style tips, and year-by-year guides for your small block Chevy engine projects

55 Chevy Engine Build

Derek kicks off his 55 Chevy rebuild with a fresh small block.

How To Replicate LS Engine Dimensions with a Steel LS Mock Up Block

The new Steel LS Mock Up Block from Speedway Motors makes it easy to fab mounts and check clearances while LS swapping your car.

Upgrading the Cooling System for a Small Block Chevy

Learn how to successfully upgrade the cooling system for a 400 small block Chevy. Read tips for installing a water pump and auxiliary coolant lines using fittings and fuel hoses.

Alternator Bracket Install on a 454 Big Block Chevy

Kevin W. walks through each step of installing a new alternator bracket on a 454 Big Block Chevy.

454 Big Block Chevy Radiator Install

How to maintain coolant temperature for a Big Block Chevy engine. Installation instructions for a double pass radiator and electric fan in a 1954 Chevy Bel Air.

Radiator Hose Replacement - Big Block Chevy

How to install a chrome radiator hose kit and aluminum thermostat housing on a big block Chevy for an added touch to your engine bay.

BluePrint Engines |

#227BPP12110348

BluePrint Engines BPP12110348 SBC Block, 4.125 Bore, 400 Mains

Main Journal Style:

400 mains

Deck Height:

9.025"

Material Type:

Cast Iron

$3,999.00

/each

BluePrint Engines |

#227BPP12110349

BluePrint Engines BPP12110349 SBC Block, 4.125 Bore, 350 Main 1pc

Main Journal Style:

350 mains

Deck Height:

9.025"

Material Type:

Cast Iron

$2,299.99

/each

BluePrint Engines |

#227BPP12110350

BluePrint Engines BPP12110350 LS Block, 4.125 Bore, Billet Caps

Main Journal Style:

LS mains

Deck Height:

9.240"

Material Type:

Cast Iron

$4,799.99

/each

BluePrint Engines |

#227BPP12110330

BluePrint Engines BPP12110330 BBC Block, 9.800 Deck x 4.600 Bore

Main Journal Style:

454 mains

Deck Height:

9.800"

Material Type:

Cast Iron

$4,799.99

/each

BluePrint Engines |

#227BPP12110332

BluePrint Engines BPP12110332 BBC Block, 9.800 Deck x 4.250 Bore

Main Journal Style:

454 mains

Deck Height:

9.800"

Material Type:

Cast Iron

$4,799.99

/each

BluePrint Engines |

#227BPP12110334

BluePrint Engines BPP12110334 BBC Block, 9.800 Deck x 4.560 Bore

Main Journal Style:

454 mains

Deck Height:

9.800"

Material Type:

Cast Iron

$4,799.99

/each

BluePrint Engines |

#227BPP12110335

BluePrint Engines BPP12110335 SBF Block, 9.500 Deck x 4.125 Bore

Main Journal Style:

Ford 351 Cleveland

Deck Height:

9.500"

Material Type:

Cast Iron

$4,399.99

/each

BluePrint Engines |

#227BPP12110337

BluePrint Engines BPP12110337 SBF Block, 9.500 Deck x 4.125 Bore

Main Journal Style:

Ford 351 Cleveland

Deck Height:

9.500"

Material Type:

Cast Iron

$3,599.00

/each

BluePrint Engines |

#227BPP12110339

BluePrint Engines BPP12110339 SBF Block, 8.200 Deck x 4.125 Bore

Main Journal Style:

302 mains

Deck Height:

8.200"

Material Type:

Cast Iron

$2,899.00

/each

BluePrint Engines |

#227BPP12110325

BluePrint Engines BPP12110325 BBC Block, 10.200 Deck x 4.500 Bore

Main Journal Style:

454 mains

Deck Height:

10.200"

Material Type:

Cast Iron

$4,799.99

/each

BluePrint Engines |

#227BPP12110356

BluePrint Engines BPP12110356 LS Block, 4.000, Cast Caps, 4-Bolt

Main Journal Style:

LS mains

Deck Height:

9.240"

Material Type:

Cast Iron

$3,999.99

/each

BluePrint Engines |

#227BPP12110357

BluePrint Engines BPP12110357 LS Block, 4.125, Cast Caps, 4-Bolt

Main Journal Style:

LS mains

Deck Height:

9.240"

Material Type:

Cast Iron

$3,999.99

/each

BluePrint Engines |

#227BPP12110358

BluePrint Engines BPP12110358 LS Block, 4.000, Billet Cap, 4-Bolt

Main Journal Style:

LS mains

Deck Height:

9.240"

Material Type:

Cast Iron

$4,799.99

/each

BluePrint Engines |

#227BPP12110359

BluePrint Engines BPP12110359 LS Block, 4.125, Billet Cap, 4-Bolt

Main Journal Style:

LS mains

Deck Height:

9.240"

Material Type:

Cast Iron

$4,799.99

/each

BluePrint Engines |

#227BPP12110360

BluePrint Engines BPP12110360 LS Block, 9.705 Deck x 4.000 Bore

Main Journal Style:

LS mains

Deck Height:

9.705"

Material Type:

Cast Iron

$4,799.99

/each

BluePrint Engines |

#227BPP12110361

BluePrint Engines BPP12110361 LS Block, 9.705 Deck x 4.125 Bore

Main Journal Style:

LS mains

Deck Height:

9.705"

Material Type:

Cast Iron

$4,799.99

/each

BluePrint Engines |

#227BPP12110362

BluePrint Engines BPP12110362 SBC Block, 4.125 Bore, 350 Main 1pc

Main Journal Style:

350 mains

Deck Height:

9.025"

Material Type:

Cast Iron

$3,999.00

/each

BluePrint Engines |

#227BPP12110324

BluePrint Engines BPP12110324 BBC Block, 9.800 Deck x 4.500 Bore

Main Journal Style:

454 mains

Deck Height:

9.800"

Material Type:

Cast Iron

$3,999.99

/each

BluePrint Engines |

#227BPP12110326

BluePrint Engines BPP12110326 BBC Block, 10.200 Deck x 4.600 Bore

Main Journal Style:

454 mains

Deck Height:

10.200"

Material Type:

Cast Iron

$3,999.00

/each

BluePrint Engines |

#227BPP12110328

BluePrint Engines BPP12110328 BBC Block, 9.800 Deck x 4.600 Bore

Main Journal Style:

454 mains

Deck Height:

9.800"

Material Type:

Cast Iron

$3,999.00

/each

BluePrint Engines |

#227BPP12110329

BluePrint Engines BPP12110329 BBC Block, 10.200 Deck x 4.500 Bore

Main Journal Style:

454 mains

Deck Height:

10.200"

Material Type:

Cast Iron

$3,999.00

/each

BluePrint Engines |

#227BPP12110353

BluePrint Engines BPP12110353 SBC Block, 4.000 Bore, 350 Main 1pc

Main Journal Style:

350 mains

Deck Height:

9.025"

Material Type:

Cast Iron

$2,299.99

/each

BluePrint Engines |

#227BPP12110331

BluePrint Engines BPP12110331 BBC Block, 10.200 Deck x 4.600 Bore

Main Journal Style:

454 mains

Deck Height:

10.200"

Material Type:

Cast Iron

$4,799.99

/each

BluePrint Engines |

#227BPP12110333

BluePrint Engines BPP12110333 BBC Block, 10.200 Deck x 4.250 Bore

Main Journal Style:

454 mains

Deck Height:

10.200"

Material Type:

Cast Iron

$4,799.99

/each

BluePrint Engines |

#227BPP12110336

BluePrint Engines BPP12110336 SBF Block, 9.500 Deck x 4.000 Bore

Main Journal Style:

Ford 351 Cleveland

Deck Height:

9.500"

Material Type:

Cast Iron

$4,399.99

/each

BluePrint Engines |

#227BPP12110338

BluePrint Engines BPP12110338 SBF Block, 9.500 Deck x 4.000 Bore

Main Journal Style:

Ford 351 Cleveland

Deck Height:

9.500"

Material Type:

Cast Iron

$3,599.00

/each

BluePrint Engines |

#227BPP12110344

BluePrint Engines BPP12110344 SBC Block, 4.000 Bore, 350 Mains

Main Journal Style:

350 mains

Deck Height:

9.025"

Material Type:

Cast Iron

$2,299.99

/each

BluePrint Engines |

#227BPP12110346

BluePrint Engines BPP12110346 SBC Block, 4.125 Bore, 350 Mains

Main Journal Style:

350 mains

Deck Height:

9.025"

Material Type:

Cast Iron

$3,999.00

/each

BluePrint Engines |

#227BPP12110351

BluePrint Engines BPP12110351 LS Block, 4.000 Bore, Billet Caps

Main Journal Style:

LS mains

Deck Height:

9.240"

Material Type:

Cast Iron

$4,799.99

/each

BluePrint Engines |

#227BPP12110352

BluePrint Engines BPP12110352 SBC Block, 4.000 Bore, 350 Main 1pc

Main Journal Style:

350 mains

Deck Height:

9.025"

Material Type:

Cast Iron

$3,999.00

/each

Dart |

#30431161411

Dart 31161411 High Performance RaceSaver Chevy 305 Block, 3.75

Cylinder Wall:

Siamese

Sold in Quantity:

Each

$3,799.99

/each

Showing 1 - 36 of 38 results

Shop Feedback:

Did you find what you are looking for?

Chevy R20 Engine Blocks

Year

Main Journal Style

Brand

Availability

Engine Family

Price

Products

BluePrint Engines BPP12110340 SBF Block, 8.200 Deck x 4.000 Bore

BluePrint Engines BPP12110341 SBF Block, 8.200 Deck x 4.000 Bore

BluePrint Engines BPP12110342 SBF Block, 8.200 Deck x 4.125 Bore

BluePrint Engines BPP12110343 SBC Block, 4.125 Bore, 350 Mains

BluePrint Engines BPP12110345 SBC Block, 4.125 Bore, 400 Mains

Related Articles

BluePrint Engines BPP12110348 SBC Block, 4.125 Bore, 400 Mains

BluePrint Engines BPP12110349 SBC Block, 4.125 Bore, 350 Main 1pc

BluePrint Engines BPP12110350 LS Block, 4.125 Bore, Billet Caps

BluePrint Engines BPP12110330 BBC Block, 9.800 Deck x 4.600 Bore

BluePrint Engines BPP12110332 BBC Block, 9.800 Deck x 4.250 Bore

BluePrint Engines BPP12110334 BBC Block, 9.800 Deck x 4.560 Bore

BluePrint Engines BPP12110335 SBF Block, 9.500 Deck x 4.125 Bore

BluePrint Engines BPP12110337 SBF Block, 9.500 Deck x 4.125 Bore

BluePrint Engines BPP12110339 SBF Block, 8.200 Deck x 4.125 Bore

BluePrint Engines BPP12110325 BBC Block, 10.200 Deck x 4.500 Bore

BluePrint Engines BPP12110356 LS Block, 4.000, Cast Caps, 4-Bolt

BluePrint Engines BPP12110357 LS Block, 4.125, Cast Caps, 4-Bolt

BluePrint Engines BPP12110358 LS Block, 4.000, Billet Cap, 4-Bolt

BluePrint Engines BPP12110359 LS Block, 4.125, Billet Cap, 4-Bolt

BluePrint Engines BPP12110360 LS Block, 9.705 Deck x 4.000 Bore

BluePrint Engines BPP12110361 LS Block, 9.705 Deck x 4.125 Bore

BluePrint Engines BPP12110362 SBC Block, 4.125 Bore, 350 Main 1pc

BluePrint Engines BPP12110324 BBC Block, 9.800 Deck x 4.500 Bore

BluePrint Engines BPP12110326 BBC Block, 10.200 Deck x 4.600 Bore

BluePrint Engines BPP12110328 BBC Block, 9.800 Deck x 4.600 Bore

BluePrint Engines BPP12110329 BBC Block, 10.200 Deck x 4.500 Bore

BluePrint Engines BPP12110353 SBC Block, 4.000 Bore, 350 Main 1pc

BluePrint Engines BPP12110331 BBC Block, 10.200 Deck x 4.600 Bore

BluePrint Engines BPP12110333 BBC Block, 10.200 Deck x 4.250 Bore

BluePrint Engines BPP12110336 SBF Block, 9.500 Deck x 4.000 Bore

BluePrint Engines BPP12110338 SBF Block, 9.500 Deck x 4.000 Bore

BluePrint Engines BPP12110344 SBC Block, 4.000 Bore, 350 Mains

BluePrint Engines BPP12110346 SBC Block, 4.125 Bore, 350 Mains

BluePrint Engines BPP12110351 LS Block, 4.000 Bore, Billet Caps

BluePrint Engines BPP12110352 SBC Block, 4.000 Bore, 350 Main 1pc

Dart 31161411 High Performance RaceSaver Chevy 305 Block, 3.75

Popular Parts