Hi-Nodular Cast Iron/Steel
New std./std. crankshaft offers:
- .092 radius on rod, main journals, rear seal & snout for increased strength & still use inexpensive OE bearings!
- Reliability at an affordable price.
- Each "ESP" crankshaft is inspected for dimension, size and stroke accuracy.
- Journal finish of 6 R.A. or less.
$190
103503750
| Stroke |
Rod Length |
Bobweight |
Rod Journal |
Main Journal |
Balance |
Seal Type |
| 3.750 |
5.700 |
1870 |
2.100 |
2.450 |
External |
2 PC |
104003750
| Stroke |
Rod Length |
Bobweight |
Rod Journal |
Main Journal |
Balance |
Seal Type |
| 3.750 |
5.700 |
1870 |
2.100 |
2.650 |
External |
2 PC |
103523480
| Stroke |
Rod Length |
Bobweight |
Rod Journal |
Main Journal |
Balance |
Seal Type |
| 3.750 |
5.700 |
1870* |
2.100 |
2.45 |
Internal |
1 PC |
$220
103503750I
| Stroke |
Rod Length |
Bobweight |
Rod Journal |
Main Journal |
Balance |
Seal Type |
| 3.750 |
6.000 |
1870 |
2.100 |
2.450 |
Internal |
2 PC |
$290
10350375057I
| Stroke |
Rod Length |
Bobweight |
Rod Journal |
Main Journal |
Balance |
Seal Type |
| 3.750 |
5.700 |
1870 |
2.100 |
2.450 |
Internal |
2 PC |
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SB Chevy Eagle 4340 Crankshaft $580
Chrome-Moly-Nickel Forged Steel
"ESP" 4340 steel cranks feature exceptional strength and unsurpassed quality at a reasonable price. The perfect choice for demanding applications.
- Forged 4340 steel non-twist forging
- Multi-stage heat treat process
- Cranks are 100% x-rayed, magnafluxed & sonic tested
- Stress relieved & shot peened
- .125 radius on rod & main journals for increased strength
- Full Counterweight designed for easy balancing
- Precision ground & micro-polished journals to less than 5 R.A.
- Cross drilled & chamfered oil holes for improved oiling
- Indexed for correct stroke
- Nitrided journal surfaces for superior wear resistance
350 Block
435037506000
| Stroke |
Rod Length |
Bobweight |
Rod Journal |
Main Journal |
Balance |
Seal Type |
| 3.750 |
6.000 |
1875 |
2.100 |
2.450 |
Internal |
2 PC |
435038756000
| Stroke |
Rod Length |
Bobweight |
Rod Journal |
Main Journal |
Balance |
Seal Type |
| 3.875 |
6.000 |
1875 |
2.100 |
2.450 |
Internal |
2 PC |
435040006000
| Stroke |
Rod Length |
Bobweight |
Rod Journal |
Main Journal |
Balance |
Seal Type |
| 4.000 |
6.000 |
1875 |
2.100 |
2.450 |
Internal |
2 PC |
435041256000
| Stroke |
Rod Length |
Bobweight |
Rod Journal |
Main Journal |
Balance |
Seal Type |
| 4.125 |
6.000 |
1875 |
2.100 |
2.450 |
Internal |
2 PC |
4350375057LW
| Stroke |
Rod Length |
Bobweight |
Rod Journal |
Main Journal |
Balance |
Seal Type |
| 3.750 |
5.700/6.000 |
1750 |
2.100 |
2.45 |
Internal |
2 PC |
Lighter Weight
4350375057LA
| Stroke |
Rod Length |
Bobweight |
Rod Journal |
Main Journal |
Balance |
Seal Type |
| 3.750 |
5.700 |
1830 |
2.100 |
2.45 |
Internal |
2 PC |
One Piece
4353337505700
| Stroke |
Rod Length |
Bobweight |
Rod Journal |
Main Journal |
Balance |
Seal Type |
| 3.750 |
5.700/6.000 |
1875* |
2.100 |
2.45 |
Internal |
1 PC |
435338756000
| Stroke |
Rod Length |
Bobweight |
Rod Journal |
Main Journal |
Balance |
Seal Type |
| 3.875 |
6.000 |
1875* |
2.100 |
2.45 |
Internal |
1 PC |
435340006000
| Stroke |
Rod Length |
Bobweight |
Rod Journal |
Main Journal |
Balance |
Seal Type |
| 4.000 |
6.000 |
1875* |
2.100 |
2.45 |
Internal |
1 PC |
Lighter Weight
4353375057LA
| Stroke |
Rod Length |
Bobweight |
Rod Journal |
Main Journal |
Balance |
Seal Type |
| 3.750 |
5.700/6.000 |
1850* |
2.100 |
2.45 |
Internal |
1 PC |
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400 Block $580
440037505700
| Stroke |
Rod Length |
Bobweight |
Rod Journal |
Main Journal |
Balance |
Seal Type |
| 3.750 |
5.700 |
1900* |
2.100 |
2.65 |
Internal |
2 PC |
440037506000
| Stroke |
Rod Length |
Bobweight |
Rod Journal |
Main Journal |
Balance |
Seal Type |
| 3.750 |
6.000 |
1900* |
2.100 |
2.65 |
Internal |
2 PC |
440038756000
| Stroke |
Rod Length |
Bobweight |
Rod Journal |
Main Journal |
Balance |
Seal Type |
| 3.875 |
6.000 |
1900* |
2.100 |
2.65 |
Internal |
2 PC |
440040006000
| Stroke |
Rod Length |
Bobweight |
Rod Journal |
Main Journal |
Balance |
Seal Type |
| 4.000 |
6.000 |
1900* |
2.100 |
2.65 |
Internal |
2 PC |
440041256000
| Stroke |
Rod Length |
Bobweight |
Rod Journal |
Main Journal |
Balance |
Seal Type |
| 4.125 |
6.000 |
1900* |
2.100 |
2.65 |
Internal |
2 PC |
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SB Chevy Eagle 4130 Crankshaft $470
Chrome-Moly Forged Steel (Almost as strong as 4340)
"ESP" Cranks Feature:
- Forged 4130 Steel
- Multi-stage heat treat process
- Medium frequency induction hardened rod & main journal surfaces for superior wear resistance
- Precision ground & micro-polished journals
- Cranks are 100% x-rayed, magnafluxed & sonic tested
- No machining required for block clearance
- .125 radius on rod, main journals, rear seal & snout for increased strength
- Stress relieved & shot peened
- Indexed for correct stroke
- Cross drilled & chamfered oil holes for improved oiling
- Counterweights designed for easy balancing
Note: All crankshaft forgings are heat treated to provide core strength. All "ESP" cranks also feature Medium Frequency Induction Hardened Rod & Main Journals (55 Rockwell hardness) at no additional cost. Hardened journals are required on heavy duty and Hi-Performance engines.
53503750
| Stroke |
Rod Length |
Rod Journal |
Main Journal |
Bobweight |
Balance Type |
Seal Type |
| 3.750 |
5.7 or longer |
2.100 |
2.450 |
1850* |
Internal |
2 PC Seal |
