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 Length
Rod Pin
Rear Main Seal Balance
Target Bobweight Grams
Approx. Weight Lbs.
Part No.
Description
Stroke
Main
LS1/LS6 Short Snout, 24-Tooth Reluctor
DRT9-34640006125-8*
4.000"
6.125" 2.100" 2.559"
1-PC.
Int.
1780
60
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 Length
Rod Pin
Rear Main Seal Balance
Target Bobweight Grams
Approx. Weight Lbs.
Part No.
Description LS1, 24-Tooth Reluctor LS1, 24-Tooth Reluctor LS7, 58-Tooth Reluctor
Stroke 3.622"
Main
EAG434636226100
6.100" 2.100" 2.559"
1-Pc.
Int.
1800
54
EAG434640006100
4.000"
6.100" 2.100" 2.559"
1-Pc.
Int.
1800
54
EAG442740006100
4.000"
6.100" 2.100" 2.559"
1-Pc.
Int.
1800
55
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 Length
Rod Pin
Rear Main Seal Balance
Target Bobweight Grams
Approx. Weight Lbs.
Part No.
Description
Stroke 4.000"
Main
LS1 Lightweight, 58-Tooth Reluctor
MAN190058
6.100" 2.100" 2.559"
1-Pc.
Int.
1800
54
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 Length
Rod Pin
Rear Main Seal Balance
Target Bobweight Grams
Approx. Weight Lbs.
Part No.
Description
Stroke 4.000"
Main
EAG440940026135
Standard Weight
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 Length
Rod Pin
Rear Main Seal Balance
Target Bobweight Grams
Approx. Weight Lbs.
Part No.
Description Early Style Late Style Early Style Late Style
Stroke 4.000" 4.000" 4.250" 4.250"
Main
EAG104544000 EAG104564000 EAG104544250 EAG104564250
6.135" 2.200" 2.749" 6.285" 2.200" 2.749" 6.385" 2.200" 2.749" 6.385" 2.200" 2.749"
2-Pc. 1-Pc. 2-Pc. 1-Pc.
Ext. Ext. Ext. Ext.
2440 2420 2420 2420
65-67 65-67 65-67 65-67
2018 ENGINE BUILDER CATALOG
16
Made with FlippingBook flipbook maker