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 Blocks and Heads

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79 Products

18° Aluminum Cylinder Head

 

18° Aluminum Cylinder Head

Chevrolet Performance
Part Number 12480009
UPC

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$668.93

 

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283 Main, 350 Bore Short-Deck Bowtie Race Block

 

283 Main, 350 Bore Short-Deck Bowtie Race Block

  • 283 main, 350 bore short-deck Bowtie race block
  • 4-bolt steel mains, 20° splayed caps on center three mains
  • 3.980" rough bore; 4.185" max bore
  • Tested to over 800 HP

Chevrolet Performance
Part Number 24502650
UPC

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$4,177.58

 

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350 Bare Block

 

350 Bare Block

  • 350 bare block
  • 1986 and later style
  • 1-Piece Rear Main Seal
  • 4.000" bore
  • Machined for hydraulic roller or flat tappets

Chevrolet Performance
Part Number 10105123
UPC

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$938.27

 

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350 Bare Block, Pre-1986

 

350 Bare Block, Pre-1986

  • 350 bare block
  • Pre-1986 style
  • 2-piece real main seal
  • 4.000" bore
  • Machined for flat tappets only

Chevrolet Performance
Part Number 10066034
UPC

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$838.56

 

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350 Cast Iron Bowtie Race Block

 

350 Cast Iron Bowtie Race Block

  • 350 Cast-iron competition block
  • 4-bolt steel mains, 20° splayed caps on center three mains
  • 3.980" finished bore; 4.155" max bore
  • Tested to over 700 horsepower

Chevrolet Performance
Part Number 24502503
UPC

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$2,287.16

 

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350 Main Bowtie Sportsman Block

 

350 Main Bowtie Sportsman Block

  • 350 main Bowtie Sportsman block
  • 1-piece real main seal
  • 4-bolt nodular mains
  • 3.980" finished bore; 4.155" max bore

Chevrolet Performance
Part Number 12480174
UPC

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$2,423.27

 

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350 Main Bowtie Sportsman Block

 

350 Main Bowtie Sportsman Block

  • 350 Bowtie Sportsman block
  • 2-piece rear main seal
  • 4-bolt nodular mains
  • 3.980" finished bore; 4.155" max bore

Chevrolet Performance
Part Number 12480047
UPC

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$2,000.78

 

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350 Main, 400 Bore Bowtie Sportsman Block

 

350 Main, 400 Bore Bowtie Sportsman Block

  • 350 main, 400 bore Bowtie Sportsman block
  • 2-piece rear main seal
  • 4-bolt nodular mains
  • 4.117" finished bore; 4.155" max bore

Chevrolet Performance
Part Number 12480157
UPC

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$1,949.14

 

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350 Main, 400 Bore Bowtie Sportsman Block

 

350 Main, 400 Bore Bowtie Sportsman Block

  • 350 main, 400 bore Bowtie Sportsman block
  • 1-piece rear main seal
  • 4-bolt nodular mains
  • 4.117" finished bore; 4.155" max bore

Chevrolet Performance
Part Number 12480175
UPC

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$2,332.03

 

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383 Bare Block

 

383 Bare Block

  • 383 bare block
  • 1986 and later style
  • 1-piece real main seal
  • 4.005" bore
  • Machined for hydraulic roller or flat tappets

Chevrolet Performance
Part Number 88962516
UPC

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$1,036.19

 

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400 Aluminum Bare Block

 

400 Aluminum Bare Block

  • 400 main aluminum bare race block
  • Splayed 4-bolt steel mains
  • 4.117" rough bore; 4.135" max bore
  • Tested to over 800 HP

Chevrolet Performance
Part Number 10134400
UPC

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$5,333.47

 

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400 Aluminum Tall Deck Bare Race Block

 

400 Aluminum Tall Deck Bare Race Block

  • A-356 aluminum tall deck competition block
  • Splayed 4-bolt steel mains
  • 4.117" rough bore; 4.135" max bore
  • Dry sump use only
  • Tested to over 800 HP

Chevrolet Performance
Part Number 24502495
UPC

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$6,914.70


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400 Main, 350 Bore Bowtie Sportsman Block

 

400 Main, 350 Bore Bowtie Sportsman Block

  • 400 main, 350 bore Bowtie Sportsman block
  • 2-piece rear main seal
  • 4-bolt nodular mains
  • 3.980" finished bore; 4.155" max bore

Chevrolet Performance
Part Number 12480049
UPC

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$2,229.61

 

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427/454 Bare Block

 

427/454 Bare Block

Chevrolet Performance
Part Number 19170538
UPC

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$1,361.24

 

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502 Mark IV/Gen VI Bare Block

 

502 Mark IV/Gen VI Bare Block

Chevrolet Performance
Part Number 19170540
UPC

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$1,951.93

 

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Aluminum C5R Racing Block

 

Aluminum C5R Racing Block

  • Premium “hipped” and X-rayed 356-T6M aluminum-alloy block casting
  • 6-bolt dowel-located steel main bearing caps
  • 4.117" finished bore; 4.160" maximum bore
  • For use with any LS or LSX series head

Chevrolet Performance
Part Number 12480030
UPC

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$8,007.40

 

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Bare C5R Racing Cubed Cylinder Head

 

Bare C5R Racing Cubed Cylinder Head

  • Capable of over 800 HP
  • Designed for big bore (4.100” min) LS7/C5R/LSX blocks
  • 210cc “as-cast” intake ports
  • 70cc “as-cast” exhaust ports, same as production LS6
  • 30cc “as-cast” combustion chambers

Chevrolet Performance
Part Number 25534393
UPC

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$1,445.48

 

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Bare Cast Iron Gen V and Gen VI Cylinder Head

 

Bare Cast Iron Gen V and Gen VI Cylinder Head

Chevrolet Performance
Part Number 12562926
UPC

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$577.49

 

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Bare Cast Iron Gen V and Gen VI Cylinder Head

 

Bare Cast Iron Gen V and Gen VI Cylinder Head

Chevrolet Performance
Part Number 12562925
UPC

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$567.59

 

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Bare Large-Port Bowtie Head

 

Bare Large-Port Bowtie Head

Chevrolet Performance
Part Number 19331473
UPC

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$446.64

 

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Bowtie 572/620 Cylinder Head Assembly

 

Bowtie 572/620 Cylinder Head Assembly

Chevrolet Performance
Part Number 19331429
UPC

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$1,067.45

 

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Bowtie 572/720R Cylinder Head Assembly

 

Bowtie 572/720R Cylinder Head Assembly

Chevrolet Performance
Part Number 19331430
UPC

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$1,227.13

 

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Bowtie Oval-Port Aluminum Bare Cylinder Head

 

Bowtie Oval-Port Aluminum Bare Cylinder Head

Chevrolet Performance
Part Number 19331422
UPC

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$770.76

 

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Bowtie Oval-Port Aluminum Cylinder Head Assembly

 

Bowtie Oval-Port Aluminum Cylinder Head Assembly

Chevrolet Performance
Part Number 19331425
UPC

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$1,048.59

 

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Bowtie Oval-Port Aluminum Cylinder Head Assembly

 

Bowtie Oval-Port Aluminum Cylinder Head Assembly

Chevrolet Performance
Part Number 19331424
UPC

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$1,022.91

 

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Bowtie Racing Cylinder Head

 

Bowtie Racing Cylinder Head

Chevrolet Performance
Part Number 12363425
UPC

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$770.27

 

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Bowtie Rectangular-Port Aluminum Bare Cylinder Head

 

Bowtie Rectangular-Port Aluminum Bare Cylinder Head

Chevrolet Performance
Part Number 19331427
UPC

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$872.53

 

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Bowtie Rectangular-Port Aluminum Cylinder Head Assembly

 

Bowtie Rectangular-Port Aluminum Cylinder Head Assembly

  • Aluminum performance head
  • 300cc rectangular intake port
  • 110cc exhaust ports
  • 118cc combustion chambers

Chevrolet Performance
Part Number 19331428
UPC

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$1,047.48

 

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Bowtie Rectangular-Port BBC Aluminum Bare Cylinder Head

 

Bowtie Rectangular-Port BBC Aluminum Bare Cylinder Head

  • Bare aluminum performance head
  • 300cc intake / 110cc exhaust ports
  • Machined for 2.250"/1.880" valves
  • 118cc combustion chambers

Chevrolet Performance
Part Number 19331426
UPC

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$768.30

 

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Cast Iron Gen V and Gen VI Cylinder Head Assembly

 

Cast Iron Gen V and Gen VI Cylinder Head Assembly

Chevrolet Performance
Part Number 12562920
UPC

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$726.27

 

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Cast Iron Rocket Block, Standard Deck

 

Cast Iron Rocket Block, Standard Deck

Chevrolet Performance
Part Number 22551788
UPC

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$2,951.38

 

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Cast Iron Vortec Cylinder Head Assembly

 

Cast Iron Vortec Cylinder Head Assembly

  • Cast iron Vortec replacement cylinder head
  • Completely assembled with 1.940"/1.500" valves
  • Uses bare head 12529093
  • For engines P/N 19258602, 19210009, 12499101, 19210007 and 19210008

Chevrolet Performance
Part Number 12558060
UPC

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$348.99

 

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Chevrolet Performance 350 Main NASCAR Busch Series Block

 

Chevrolet Performance 350 Main NASCAR Busch Series Block

Chevrolet Performance
Part Number 12480046
UPC

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$6,782.87

 

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COPO LS7 CNC Cylinder Head Assembly

 

COPO LS7 CNC Cylinder Head Assembly

Chevrolet Performance
Part Number 17802818
UPC

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$2,653.51

 

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DRCE 2 Bare Block, Gray Iron

 

DRCE 2 Bare Block, Gray Iron

Chevrolet Performance
Part Number 24502572
UPC

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$3,961.53

 

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DRCE 2 Raw Aluminum Cylinder Head

 

DRCE 2 Raw Aluminum Cylinder Head

Chevrolet Performance
Part Number 24502585
UPC

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$828.60

 

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DRCE 3 Aluminum Cylinder Head Casting

 

DRCE 3 Aluminum Cylinder Head Casting

Chevrolet Performance
Part Number 25534404
UPC

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$1,423.27

 

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