Page 51 - 2021-22_EngineCatalogAP

CHEVROLET SMALL BLOCK
Competition Rotating Assemblies with 4340 Crankshaft
Unbalanced Assemblies
“ESP” Competition rotating assemblies are
designed for small block engine builds up to
750 horsepower and big block up to 850. They
include high-quality brand components to build
a durable competition race engine. Rotating
assemblies include: “ESP” 4340 forged steel
crankshaft, “ESP” H-Beam 3-D connecting
rods, Mahle or SRP forged pistons, file-fit
piston rings, Speed-Pro or Clevite 77 rod and
main bearings. Flexplate/flywheel and balancer
not included. Requires balancing at a profes-
sional machine shop. Eagle Specialty products
reserves the right to substitute parts due to
availability. Each kit part number is specified by bore size.
Chevrolet Small Block 350
Compression ratio is based on 64cc combustion chamber. Requires balancing. 2-piece seal crankshaft unless noted.
Part No.
Eagle
EAG12007030 EAG12008030 EAG12008040 EAG12011030 EAG12011060 EAG12012030 EAG12012040 EAG12012060 EAG12107030 †
Cubic Bore
Inch Size Stroke
383 4.030" 3.750" 383 4.030" 3.750" 385 4.040" 3.750" 383 4.030" 3.750" 388 4.060" 3.750" 383 4.030" 3.750" 383 4.040" 3.750" 383 4.060" 3.750" 383 4.030" 3.750"
Rod Balance Length Needed
5.700" Int. 5.700" Int. 5.700" Int. 6.000" Int. 6.000" Int. 6.000" Int. 6.000" Int. 6.000" Int. 5.700" Int.
Piston Type
4032 Mahle/Inv. Dome -16cc 4032 Mahle/Flat-Top -5cc 4032 Mahle/Flat-Top -5cc 4032 Mahle/Flat-Top -5cc 4032 Mahle/Flat-Top -5cc 2618 Mahle/Dome +6cc 2618 Mahle/Dome +6cc 2618 Mahle/Dome +6cc 4032 Mahle/Inv. Dome -16cc
Piston Rings
File-Fit File-Fit File-Fit File-Fit File-Fit File-Fit File-Fit File-Fit File-Fit
Comp. Ratio/64cc
9.4:1 10.5:1 10.5:1 10.5:1 10.5:1 12.0:1 12.0:1 12.0:1 9.4:1
† Designed for use with 1-piece seal crankshaft
Chevrolet Small Block 400
400 Mains designed for internal balance with no heavy metal needed. Compression ratio is based on 64cc combustion chamber. 2-piece seal crankshaft.
Part No.
Eagle
EAG12001030 EAG12001040 EAG12029030 EAG12004030 EAG12004060 EAG12020040 EAG12501030 EAG12503030 EAG12503040 EAG12504030 EAG12504040
Cubic Bore
Inch Size Stroke
355 4.030" 3.480" 357 4.040" 3.480" 355 4.030" 3.480" 355 4.030" 3.480" 360 4.060" 3.480" 357 4.030" 3.500" 406 4.155" 3.750" 406 4.155" 3.750" 409 4.165" 3.750" 406 4.155" 3.750" 409 4.165" 3.750"
Rod Balance Length Needed
5.700" Int. 5.700" Int. 5.700" Int. 6.000" Int. 6.000" Int. 6.000" Int. 5.700" Int. 6.000" Int. 6.000" Int. 6.000" Int. 6.000" Int.
Piston Type
4032 Mahle/Flat-Top -5cc 4032 Mahle/Flat-Top -5cc 4032 SRP/Inv. Dome -24cc 2618 Mahle/Dome +11cc 2618 Mahle/Dome +11cc 4032 Mahle/Flat-Top -5cc 4032 Mahle/Flat-Top -5cc 4032 Mahle/Flat-Top -5cc 4032 Mahle/Flat-Top -5cc 2618 Mahle/Dome +4cc 2618 Mahle/Dome +4cc
Piston Rings
File-Fit File-Fit File-Fit File-Fit File-Fit File-Fit File-Fit File-Fit File-Fit File-Fit File-Fit
Comp. Ratio/64cc
9.6:1 9.6:1 8.2:1 11.6:1 11.6:1 9.9:1 11.0 :1 11.0 :1 11.0 :1 12.2:1 12.2:1
ROTATING ASSEMBLIES
2021-22 ENGINE BUILDER CATALOG 49