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Blocks and Heads

77 Products

Chevrolet Performance

Chevrolet Performance

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18° Aluminum Cylinder Head

18° Aluminum Cylinder Head

12480009

$668.93

 

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283 Main, 350 Bore Short-Deck Bowtie Race Block

283 Main, 350 Bore Short-Deck Bowtie Race Block

24502650

  • 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

$4,177.58

 

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350 Bare Block

350 Bare Block

10105123

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

$938.27

 

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350 Bare Block, Pre-1986

350 Bare Block, Pre-1986

10066034

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

$838.56

 

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350 Cast Iron Bowtie Race Block

350 Cast Iron Bowtie Race Block

24502503

  • 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

$2,287.16

 

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350 Main Bowtie Sportsman Block

350 Main Bowtie Sportsman Block

12480174

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

$2,423.27

 

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350 Main Bowtie Sportsman Block

350 Main Bowtie Sportsman Block

12480047

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

$2,000.78

 

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350 Main, 400 Bore Bowtie Sportsman Block

350 Main, 400 Bore Bowtie Sportsman Block

12480157

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

$1,949.14

 

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350 Main, 400 Bore Bowtie Sportsman Block

350 Main, 400 Bore Bowtie Sportsman Block

12480175

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

$2,332.03

 

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383 Bare Block

383 Bare Block

88962516

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

$1,036.19

 

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400 Aluminum Bare Block

400 Aluminum Bare Block

10134400

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

$5,333.47

 

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400 Aluminum Tall Deck Bare Race Block

400 Aluminum Tall Deck Bare Race Block

24502495

  • 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

$6,914.70

 

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400 Main, 350 Bore Bowtie Sportsman Block

400 Main, 350 Bore Bowtie Sportsman Block

12480049

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

$2,229.61

 

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427/454 Bare Block

427/454 Bare Block

19170538

$1,361.24

 

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502 Mark IV/Gen VI Bare Block

502 Mark IV/Gen VI Bare Block

19170540

$1,951.93

 

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Aluminum C5R Racing Block

Aluminum C5R Racing Block

12480030

$8,007.40

 

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Bare C5R Racing Cubed Cylinder Head

Bare C5R Racing Cubed Cylinder Head

25534393

$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

12562926

$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

12562925

$567.59

 

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Bare Large-Port Bowtie Head

Bare Large-Port Bowtie Head

19331473

$446.64

 

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Bowtie 572/620 Cylinder Head Assembly

Bowtie 572/620 Cylinder Head Assembly

19331429

$1,067.45

 

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Bowtie 572/720R Cylinder Head Assembly

Bowtie 572/720R Cylinder Head Assembly

19331430

$1,227.13

 

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Bowtie Oval-Port Aluminum Bare Cylinder Head

Bowtie Oval-Port Aluminum Bare Cylinder Head

19331422

$770.76

 

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Bowtie Oval-Port Aluminum Cylinder Head Assembly

Bowtie Oval-Port Aluminum Cylinder Head Assembly

19331425

$1,048.59

 

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Bowtie Oval-Port Aluminum Cylinder Head Assembly

Bowtie Oval-Port Aluminum Cylinder Head Assembly

19331424

$1,022.91

 

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Bowtie Racing Cylinder Head

Bowtie Racing Cylinder Head

12363425

$770.27

 

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Bowtie Rectangular-Port Aluminum Bare Cylinder Head

Bowtie Rectangular-Port Aluminum Bare Cylinder Head

19331427

$872.53

 

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Bowtie Rectangular-Port Aluminum Cylinder Head Assembly

Bowtie Rectangular-Port Aluminum Cylinder Head Assembly

19331428

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

$1,047.48

 

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Bowtie Rectangular-Port BBC Aluminum Bare Cylinder Head

Bowtie Rectangular-Port BBC Aluminum Bare Cylinder Head

19331426

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

$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

12562920

$726.27

 

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Cast Iron Rocket Block, Standard Deck

Cast Iron Rocket Block, Standard Deck

22551788

$2,951.38

 

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Cast Iron Vortec Cylinder Head Assembly

Cast Iron Vortec Cylinder Head Assembly

12558060

  • 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

$348.99

 

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Chevrolet Performance 350 Main NASCAR Busch Series Block

Chevrolet Performance 350 Main NASCAR Busch Series Block

12480046

$6,782.87

 

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COPO LS7 CNC Cylinder Head Assembly

COPO LS7 CNC Cylinder Head Assembly

17802818

$2,653.51

 

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DRCE 2 Bare Block, Gray Iron

DRCE 2 Bare Block, Gray Iron

24502572

$3,961.53

 

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DRCE 2 Raw Aluminum Cylinder Head

DRCE 2 Raw Aluminum Cylinder Head

24502585

$828.60

 

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DRCE 3 Aluminum Cylinder Head Casting

DRCE 3 Aluminum Cylinder Head Casting

25534404

$1,423.27

 

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Fast Burn Aluminum Cylinder Head Assembly

Fast Burn Aluminum Cylinder Head Assembly

19300955

  • Fast Burn 23-degree cylinder head
  • Completely assembled with 2.000"/1.550" valves
  • 210cc intake port, roof raised .240"
  • Requires no additional porting for optimal performance

$851.47

 

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Gen IV 6.0L Cast-Iron Block

Gen IV 6.0L Cast-Iron Block

19369841

$1,126.03

 

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LS2 Aluminum 6.0L Bare Block

LS2 Aluminum 6.0L Bare Block

12602691

$1,264.60

 

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LS3 CNC-Ported Cylinder Head

LS3 CNC-Ported Cylinder Head

88958758

  • Almost 10-percent increase in airflow
  • Greater power across the rpm band
  • CNC-ported version of LS3 cylinder head
  • For LS engines with 4.000" or larger bore

$756.72

 

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LS3 Cylinder Head Assembly

LS3 Cylinder Head Assembly

12629063

$561.37

 

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LS7 7.0L Corvette Bare Block

LS7 7.0L Corvette Bare Block

19213580

$3,177.83

 

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Aluminum Fast Burn Bare Cylinder Head

Aluminum Fast Burn Bare Cylinder Head

19300956

$575.12

 

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Cylinder Head Assembly with Valves for 290 HP

Cylinder Head Assembly with Valves for 290 HP

93438649

  • 350/290 service replacement head
  • Cast iron
  • Bare head P/N 93438648
  • 76cc combustion chamber

$336.54

 

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DRCE 3 Bare Block, Compacted Graphite

DRCE 3 Bare Block, Compacted Graphite

25534400

$6,752.27

 

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DRCE 3 Bare Block, Compacted Graphite

DRCE 3 Bare Block, Compacted Graphite

25534406

$6,752.27

 

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Large Port Vortec Bowtie Cylinder Head Assembly

Large Port Vortec Bowtie Cylinder Head Assembly

19331472

  • The most powerful cast-iron heads offered by Chevy Performance
  • Completely assembled, ready to bolt on
  • 225cc intake ports; 77cc exhaust ports
  • 65cc combustion chambers

$694.78

 

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18° Aluminum Cylinder Head 18° Aluminum Cylinder Head

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Retail Price $788.84
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283 Main, 350 Bore Short-Deck Bowtie Race Block 283 Main, 350 Bore Short-Deck Bowtie Race Block

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350 Bare Block 350 Bare Block

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350 Bare Block, Pre-1986 350 Bare Block, Pre-1986

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Retail Price $988.86
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350 Cast Iron Bowtie Race Block 350 Cast Iron Bowtie Race Block

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Retail Price $2,697.12
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350 Main Bowtie Sportsman Block 350 Main Bowtie Sportsman Block

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Retail Price $2,857.64
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350 Main Bowtie Sportsman Block 350 Main Bowtie Sportsman Block

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350 Main, 400 Bore Bowtie Sportsman Block 350 Main, 400 Bore Bowtie Sportsman Block

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Retail Price $2,298.53
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350 Main, 400 Bore Bowtie Sportsman Block 350 Main, 400 Bore Bowtie Sportsman Block

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383 Bare Block 383 Bare Block

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400 Aluminum Bare Block 400 Aluminum Bare Block

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400 Aluminum Tall Deck Bare Race Block 400 Aluminum Tall Deck Bare Race Block

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400 Main, 350 Bore Bowtie Sportsman Block 400 Main, 350 Bore Bowtie Sportsman Block

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Retail Price $2,629.26
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427/454 Bare Block 427/454 Bare Block

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502 Mark IV/Gen VI Bare Block 502 Mark IV/Gen VI Bare Block

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Aluminum C5R Racing Block Aluminum C5R Racing Block

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Bare C5R Racing Cubed Cylinder Head Bare C5R Racing Cubed Cylinder Head

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Retail Price $1,642.58
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Bare Cast Iron Gen V and Gen VI Cylinder Head Bare Cast Iron Gen V and Gen VI Cylinder Head

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Bare Cast Iron Gen V and Gen VI Cylinder Head Bare Cast Iron Gen V and Gen VI Cylinder Head

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Bare Large-Port Bowtie Head Bare Large-Port Bowtie Head

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Bowtie 572/620 Cylinder Head Assembly Bowtie 572/620 Cylinder Head Assembly

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Bowtie 572/720R Cylinder Head Assembly Bowtie 572/720R Cylinder Head Assembly

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Bowtie Oval-Port Aluminum Bare Cylinder Head Bowtie Oval-Port Aluminum Bare Cylinder Head

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Bowtie Oval-Port Aluminum Cylinder Head Assembly Bowtie Oval-Port Aluminum Cylinder Head Assembly

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Bowtie Oval-Port Aluminum Cylinder Head Assembly Bowtie Oval-Port Aluminum Cylinder Head Assembly

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Bowtie Racing Cylinder Head Bowtie Racing Cylinder Head

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Bowtie Rectangular-Port Aluminum Bare Cylinder Head Bowtie Rectangular-Port Aluminum Bare Cylinder Head

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Bowtie Rectangular-Port Aluminum Cylinder Head Assembly Bowtie Rectangular-Port Aluminum Cylinder Head Assembly

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Bowtie Rectangular-Port BBC Aluminum Bare Cylinder Head Bowtie Rectangular-Port BBC Aluminum Bare Cylinder Head

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Cast Iron Gen V and Gen VI Cylinder Head Assembly Cast Iron Gen V and Gen VI Cylinder Head Assembly

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Cast Iron Rocket Block, Standard Deck Cast Iron Rocket Block, Standard Deck

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Cast Iron Vortec Cylinder Head Assembly Cast Iron Vortec Cylinder Head Assembly

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Chevrolet Performance 350 Main NASCAR Busch Series Block Chevrolet Performance 350 Main NASCAR Busch Series Block

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COPO LS7 CNC Cylinder Head Assembly COPO LS7 CNC Cylinder Head Assembly

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DRCE 2 Bare Block, Gray Iron DRCE 2 Bare Block, Gray Iron

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DRCE 2 Raw Aluminum Cylinder Head DRCE 2 Raw Aluminum Cylinder Head

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DRCE 3 Aluminum Cylinder Head Casting DRCE 3 Aluminum Cylinder Head Casting

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Fast Burn Aluminum Cylinder Head Assembly Fast Burn Aluminum Cylinder Head Assembly

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Gen IV 6.0L Cast-Iron Block Gen IV 6.0L Cast-Iron Block

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LS2 Aluminum 6.0L Bare Block LS2 Aluminum 6.0L Bare Block

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LS3 CNC-Ported Cylinder Head LS3 CNC-Ported Cylinder Head

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LS3 Cylinder Head Assembly LS3 Cylinder Head Assembly

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LS7 7.0L Corvette Bare Block LS7 7.0L Corvette Bare Block

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Aluminum Fast Burn Bare Cylinder Head Aluminum Fast Burn Bare Cylinder Head

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Cylinder Head Assembly with Valves for 290 HP Cylinder Head Assembly with Valves for 290 HP

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DRCE 3 Bare Block, Compacted Graphite DRCE 3 Bare Block, Compacted Graphite

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DRCE 3 Bare Block, Compacted Graphite DRCE 3 Bare Block, Compacted Graphite

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Large Port Vortec Bowtie Cylinder Head Assembly Large Port Vortec Bowtie Cylinder Head Assembly

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18° Aluminum Cylinder Head

18° Aluminum Cylinder Head

12480009

$668.93

 

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283 Main, 350 Bore Short-Deck Bowtie Race Block

283 Main, 350 Bore Short-Deck Bowtie Race Block

24502650

  • 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

$4,177.58

 

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350 Bare Block

350 Bare Block

10105123

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

$938.27

 

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350 Bare Block, Pre-1986

350 Bare Block, Pre-1986

10066034

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

$838.56

 

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350 Cast Iron Bowtie Race Block

350 Cast Iron Bowtie Race Block

24502503

  • 350 Cast-iron competition block
  • 4-bolt steel mains, 20° splayed caps on center three mains
18° Aluminum Cylinder Head 18° Aluminum Cylinder Head

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GM
Retail Price $788.84
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283 Main, 350 Bore Short-Deck Bowtie Race Block 283 Main, 350 Bore Short-Deck Bowtie Race Block

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Retail Price $4,926.40
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350 Bare Block 350 Bare Block

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Retail Price $1,106.44
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350 Bare Block, Pre-1986 350 Bare Block, Pre-1986

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GM 0.00
Retail Price $988.86
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