Page 17 - 2018 Racecar Engineering Engine Parts and Accessories Catalog

CRANKSHAFTS

Chevrolet LS Based Gen III/IV 4.8L/5.3L/5.7L/6.0L/6.2L/7.0L
Forged Steel Crankshafts - Cont.
Dart Machinery
Features: 4340 billet steel, 8-counterweights front, center and rear added, heavy-duty rod cheeks, small hole trough the rod
pin, dual keyway provision, large radii for narrowed rod bearings, chamfered oil holes, highly polished journals, no Mallory
required. 800-900 HP naturally aspirated, and works in power-adder engines. Recommended for use with LS Next/SHP LS
Blocks. Fully polished option special order only.
Min. Rod Rod Rear Target Approx.
Part No. Description Stroke Length Pin Main Main Seal Balance Bobweight Grams Weight Lbs.
LS1/LS6 Short
DRT9-34640006125-8* Snout, 24-Tooth 4.000" 6.125" 2.100" 2.559" 1-PC. Int. 1780 60
Reluctor
Note: * These Dart cranks are precision fitment in Dart LS Next and SHP LS blocks.
Eagle
“ESP” Features: SAE 4340 steel non-twist forging, multi-stage heat-treated, stress-relieved, .125" radii for use with
narrowed bearings, chamfered oil holes, shot-peened, nitride hardened, X-rayed, magnafluxed, and sonic tested.
Recommended for use up to 1500 HP.
Min. Rod Rod Rear Target Approx.
Part No. Description Stroke Length Pin Main Main Seal Balance Bobweight Grams Weight Lbs.
LS1, 24-Tooth
EAG434636226100 3.622" 6.100" 2.100" 2.559" 1-Pc. Int. 1800 54
Reluctor
LS1, 24-Tooth
EAG434640006100 4.000" 6.100" 2.100" 2.559" 1-Pc. Int. 1800 54
Reluctor
LS7, 58-Tooth
EAG442740006100 4.000" 6.100" 2.100" 2.559" 1-Pc. Int. 1800 55
Reluctor
Manley
Lightweight Features: 4340 steel non-twist forging, heat-treated, precision ground, stress relieved, shot peened, nitride
hardened, large fillet radii for use with narrowed bearings, gun-drilled rod journals, chamfered oil holes, magnafluxed, and
micro-polished.
Min. Rod Rod Rear Target Approx.
Part No. Description Stroke Length Pin Main Main Seal Balance Bobweight Grams Weight Lbs.
LS1 Lightweight,
MAN190058 4.000" 6.100" 2.100" 2.559" 1-Pc. Int. 1800 54
58-Tooth Reluctor

Chevrolet Big Block “W” 409 Engine
Forged Steel Crankshafts
Eagle
“ESP” Features: SAE 4340 steel non-twist forging, multi-stage heat-treated, stress-relieved, .125" radii for use with
narrowed bearings, chamfered oil holes, shot-peened, nitride hardened, X-rayed, magnafluxed, and sonic tested.
Recommended for use up to 1500 HP.
Min. Rod Rod Rear Target Approx.
Part No. Description Stroke Length Pin Main Main Seal Balance Bobweight Grams Weight Lbs.
EAG440940026135 Standard Weight 4.000" 6.135" 2.200" 2.500" 2-Pc. Int. 2350 70-78

Chevrolet Big Block
Cast Steel Crankshafts
Eagle
“ESP” Features: 092" radius on rod and main journals, rear seal and snout, compatibility with standard OEM style bearings.
Min. Rod Rod Rear Target Approx.
Part No. Description Stroke Length Pin Main Main Seal Balance Bobweight Grams Weight Lbs.
EAG104544000 Early Style 4.000" 6.135" 2.200" 2.749" 2-Pc. Ext. 2440 65-67
EAG104564000 Late Style 4.000" 6.285" 2.200" 2.749" 1-Pc. Ext. 2420 65-67
EAG104544250 Early Style 4.250" 6.385" 2.200" 2.749" 2-Pc. Ext. 2420 65-67
EAG104564250 Late Style 4.250" 6.385" 2.200" 2.749" 1-Pc. Ext. 2420 65-67

16 2018 ENGINE BUILDER CATALOG