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Chevrolet K20 Engine Block Parts

This page brings together engine block parts for the Chevrolet K20, covering model years 1961–1996. The range includes piston rings, pistons, connecting rod bearing sets, crankshaft main bearing sets, intake manifolds, valve covers, and cylinder heads in OE replacement and performance styles. Choose your model year above and this page keeps only the engine block parts that fit your Chevrolet K20. Each listing is matched to our vehicle fitment data before it appears here.

811 - 840 of 967 results

Best Seller
Picture of Speedmaster PCE239.1007 SBC 350 Billet Aluminum Short Water Pump Single Groove Crankshaft Pulley

Speedmaster PCE239.1007 SBC 350 Billet Aluminum Short Water Pump Single Groove Crankshaft Pulley

56 reviews
Part: PCE239.1007
$19.10
In Stock (10+)
Picture for manufacturer Speedmaster
Best Seller Free Shipping
Picture of Speedmaster PCE274.1003 I-Beam Connecting Rods 5.700" Length 5140 Chromoly Steel for Chevy SBC 350

Speedmaster PCE274.1003 I-Beam Connecting Rods 5.700" Length 5140 Chromoly Steel for Chevy SBC 350

53 reviews
Part: PCE274.1003
$264.08
In Stock (10+)
Picture for manufacturer Speedmaster
Best Seller Free Shipping
Picture of Speedmaster PCE281.1157 SBC 350 190cc Aluminum Cylinder Head with CNC Angle Chambers

Speedmaster PCE281.1157 SBC 350 190cc Aluminum Cylinder Head with CNC Angle Chambers

65 reviews
Part: PCE281.1157
$278.70
In Stock (10+)
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster PCE281.1153 SBC 350 190cc Aluminum Cylinder Head CNC Ported Bare

Speedmaster PCE281.1153 SBC 350 190cc Aluminum Cylinder Head CNC Ported Bare

43 reviews
Part: PCE281.1153
$433.49
In Stock (10+)
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster PCE281.1106 SBC 350 190cc 64cc Aluminum Cylinder Head Bare

Speedmaster PCE281.1106 SBC 350 190cc 64cc Aluminum Cylinder Head Bare

5 reviews
Part: PCE281.1106
$329.82
In Stock (10+)
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster PCE274.1088 I-Beam Race 4340 Connecting Rods 6.700" BBC 454

Speedmaster PCE274.1088 I-Beam Race 4340 Connecting Rods 6.700" BBC 454

46 reviews
Part: PCE274.1088
Vehicle Specific
$357.10
In Stock (10+)
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster PCE274.1087 I-Beam Connecting Rods 6.535" 4340 Steel Chevy BBC 454

Speedmaster PCE274.1087 I-Beam Connecting Rods 6.535" 4340 Steel Chevy BBC 454

70 reviews
Part: PCE274.1087
$357.10
In Stock (10+)
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster PCE274.1089 I-Beam 6.800" Connecting Rods 4340 Chromoly BBC Chevy 454

Speedmaster PCE274.1089 I-Beam 6.800" Connecting Rods 4340 Chromoly BBC Chevy 454

45 reviews
Part: PCE274.1089
Vehicle Specific
$357.60
In Stock (10+)
Picture for manufacturer Speedmaster
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Picture of Speedmaster PCE291.1076 BBC 454 Harmonic Balancer 6.75" External Balanced SFI 18.1

Speedmaster PCE291.1076 BBC 454 Harmonic Balancer 6.75" External Balanced SFI 18.1

18 reviews
Part: PCE291.1076
$140.79
In Stock (10+)
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster PCE276.1089 BBC 454 Cast Steel Crankshaft 4.250 Stroke 2-Piece Rear Main Seal

Speedmaster PCE276.1089 BBC 454 Cast Steel Crankshaft 4.250 Stroke 2-Piece Rear Main Seal

46 reviews
Part: PCE276.1089
$408.29
1 left at this price
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster PCE274.1121 H-Beam 4340 Connecting Rods 6.435" 2.200" .990" Bronze Bush BBC 454 Set

Speedmaster PCE274.1121 H-Beam 4340 Connecting Rods 6.435" 2.200" .990" Bronze Bush BBC 454 Set

63 reviews
Part: PCE274.1121
$377.58
In Stock (10+)
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster PCE279.1029 Chevy SBC 350 Head Stud Kit 3/8" to 7/16" Donovan Aluminum Block

Speedmaster PCE279.1029 Chevy SBC 350 Head Stud Kit 3/8" to 7/16" Donovan Aluminum Block

63 reviews
Part: PCE279.1029
$147.86
In Stock (10+)
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster PCE281.1275 SBC 350 Aluminum Cylinder Head 217cc 74cc Angle Plug CNC

Speedmaster PCE281.1275 SBC 350 Aluminum Cylinder Head 217cc 74cc Angle Plug CNC

47 reviews
Part: PCE281.1275
$631.82
In Stock (10+)
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster PCE281.1196 SBC 350 205cc 64cc Aluminum Cylinder Head Straight Plug

Speedmaster PCE281.1196 SBC 350 205cc 64cc Aluminum Cylinder Head Straight Plug

15 reviews
Part: PCE281.1196
$305.46
In Stock (10+)
Picture for manufacturer Speedmaster
Picture of Speedmaster PCE279.1003 SBC 350 Chromoly Head Bolt Kit 1/4 Inch Longer

Speedmaster PCE279.1003 SBC 350 Chromoly Head Bolt Kit 1/4 Inch Longer

55 reviews
Part: PCE279.1003
$35.67
In Stock (10+)
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster PCE281.2003 SBC Aluminum Cylinder Heads Assembled - 350 190cc

Speedmaster PCE281.2003 SBC Aluminum Cylinder Heads Assembled - 350 190cc

29 reviews
Part: PCE281.2003
$864.07
In Stock (10)
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster PCE281.2002 SBC 350 Assembled Cylinder Heads 190cc 64cc Angle Plug

Speedmaster PCE281.2002 SBC 350 Assembled Cylinder Heads 190cc 64cc Angle Plug

76 reviews
Part: PCE281.2002
$821.93
In Stock (10)
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster PCE287.1027 Chevy BBC 454 Main Bolt Kit 4-Bolt 12-Point

Speedmaster PCE287.1027 Chevy BBC 454 Main Bolt Kit 4-Bolt 12-Point

74 reviews
Part: PCE287.1027
$71.40
In Stock (10+)
Picture for manufacturer Speedmaster
Picture of Speedmaster PCE287.1026 Chevy BBC 396 454 Main Bolt Kit 2-Bolt 12-Point Chromoly

Speedmaster PCE287.1026 Chevy BBC 396 454 Main Bolt Kit 2-Bolt 12-Point Chromoly

31 reviews
Part: PCE287.1026
$31.78
In Stock (10+)
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster 1-435-006 SBC 350 Cylinder Head Top End Engine Combo Kit Hydraulic Roller

Speedmaster 1-435-006 SBC 350 Cylinder Head Top End Engine Combo Kit Hydraulic Roller

70 reviews
Part: 1-435-006
$1,379.44
In Stock (10)
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster 1-435-002 SBC 350 Angle Cylinder Head Top End Engine Combo Kit Solid Flat Tappet

Speedmaster 1-435-002 SBC 350 Angle Cylinder Head Top End Engine Combo Kit Solid Flat Tappet

70 reviews
Part: 1-435-002
$1,399.12
In Stock (10+)
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster 1-435-001 Street Series SBC 350 Top End Engine Combo Kit Hydraulic Flat Tappet Angle Plug

Speedmaster 1-435-001 Street Series SBC 350 Top End Engine Combo Kit Hydraulic Flat Tappet Angle Plug

69 reviews
Part: 1-435-001
Vehicle Specific
$1,367.66
In Stock (10+)
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster PCE281.1755 Chevy SBC 350 Vortec 180cc 64cc Straight Plug Cast Iron Cylinder Head

Speedmaster PCE281.1755 Chevy SBC 350 Vortec 180cc 64cc Straight Plug Cast Iron Cylinder Head

71 reviews
Part: PCE281.1755
$360.53
In Stock (10+)
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster PCE276.1132 BBC 454 Forged 4340 Steel Crankshaft 4.500 Stroke 8-Counterweight

Speedmaster PCE276.1132 BBC 454 Forged 4340 Steel Crankshaft 4.500 Stroke 8-Counterweight

68 reviews
Part: PCE276.1132
$797.91
3 left at this price
Picture for manufacturer Speedmaster
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Picture of Speedmaster PCE276.1068 SBC 350 Forged Steel Crankshaft 3.480 Stroke 2.100 Rod Journal

Speedmaster PCE276.1068 SBC 350 Forged Steel Crankshaft 3.480 Stroke 2.100 Rod Journal

7 reviews
Part: PCE276.1068
$531.57
In Stock (10+)
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster PCE300.1025 Chevy SBC 350 Circle Track Oil Pan 7 Quart Zinc Plated

Speedmaster PCE300.1025 Chevy SBC 350 Circle Track Oil Pan 7 Quart Zinc Plated

79 reviews
Part: PCE300.1025
$89.76
In Stock (10+)
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster PCE291.1064 BBC 454 8.000" Fluid Damper Harmonic Balancer SFI 18.1

Speedmaster PCE291.1064 BBC 454 8.000" Fluid Damper Harmonic Balancer SFI 18.1

70 reviews
Part: PCE291.1064
$186.80
In Stock (10+)
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster PCE276.1037 Chevy BBC 454 Forged Steel Crankshaft 4.250 Stroke

Speedmaster PCE276.1037 Chevy BBC 454 Forged Steel Crankshaft 4.250 Stroke

24 reviews
Part: PCE276.1037
$1,224.47
1 left at this price
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster PCE276.1032 BBC 454 4340 Forged Steel Crankshaft 4.250 Stroke Internal Balance 2-Piece Seal

Speedmaster PCE276.1032 BBC 454 4340 Forged Steel Crankshaft 4.250 Stroke Internal Balance 2-Piece Seal

35 reviews
Part: PCE276.1032
$988.89
In Stock (6)
Picture for manufacturer Speedmaster
Free Shipping
Picture of Speedmaster PCE276.1026 Forged 4340 Steel Crankshaft Chevy 400 4.000" Stroke External Balance

Speedmaster PCE276.1026 Forged 4340 Steel Crankshaft Chevy 400 4.000" Stroke External Balance

19 reviews
Part: PCE276.1026
$896.20
In Stock (5)
Picture for manufacturer Speedmaster

What's here for your Chevrolet K20

  • Engine piston ring sets and individual piston rings
  • Engine pistons, including kit configurations
  • Engine connecting rod bearing sets
  • Engine crankshaft main bearing sets
  • Engine intake manifolds, available in cast iron and performance variants
  • Engine valve covers in chrome, black, and polished finishes
  • Engine cylinder heads

The widest selection of Chevrolet K20 engine block parts here comes from Speedmaster, MAHLE, King Engine Bearings, and Hastings, covering everything from OE replacement gasket-matched components to performance-oriented kits. Other categories Chevrolet K20 owners shop for: Chevrolet K20 Body Frame Parts, Chevrolet K20 Springs and Suspension Parts and Chevrolet K20 Steering Gear and Parts, or browse all Chevrolet K20 parts and accessories.