Enginetech 123300 is a crankshaft kit for 1970-1990 Chevrolet, GMC engines (7.4L 454ci V8). Includes matching rod and main bearings. Sold individually (1 kit per order).
Important Notes
- This crankshaft is pre-ground and pre-packaged. The exact journal oversize cannot be confirmed prior to shipment. The correct matching oversized rod and main bearings are always included in the kit.
- Cast crankshaft. Engines with 2pc. rear main seal. Includes bearings. Forging # 3967463, 3875945, N353039, 3963524
- Cast crankshaft. Includes bearings. Forging # 3967463, 3875945, N353039, 3963524
- Cast crankshaft. Engines with 2 piece rear main seal. Includes bearings. Forging # 3967463, 3875945, N353039, 3963524
Product Specifications
| Part Number | 123300 |
| Brand | Enginetech |
| Type | Crankshaft Kit |
| Kit Contents | Crankshaft + matching rod & main bearings |
| Quantity | Sold individually (1 kit per order) |
| Year Range | 1970-1990 |
| Makes | Chevrolet, GMC |
| Engine | 7.4L 454ci V8 |
| Forging Number | 3967463, 3875945, N353039, 3963524 |
| Weight | 70 lbs |
| Country of Origin | US |
| UPC | 657570030007 |
| OEM Cross-References | Crankshaft Rebuilders:12450 |
Vehicle Fitment
- 1970 Chevrolet Estate 7.4L 454ci V8 OHV
- 1970-1971 Chevrolet Bel Air 7.4L 454ci V8 OHV
- 1970-1971 Chevrolet Biscayne 7.4L 454ci V8 OHV
- 1970-1971 Chevrolet Brookwood 7.4L 454ci V8 OHV
- 1970-1971 Chevrolet Caprice 7.4L 454ci V8 OHV
- 1970-1971 Chevrolet Chevelle 7.4L 454ci V8 OHV
- 1970-1971 Chevrolet Corvette 7.4L 454ci V8 OHV
- 1970-1971 Chevrolet Impala 7.4L 454ci V8 OHV
- 1970-1971 Chevrolet Kingswood 7.4L 454ci V8 OHV
- 1970-1971 Chevrolet Monte Carlo 7.4L 454ci V8 OHV
- 1970-1971 Chevrolet Nova 7.4L 454ci V8 OHV
- 1970-1971 Chevrolet Townsman 7.4L 454ci V8 OHV
- 1971 Chevrolet El Camino 7.4L 454ci V8 OHV
- 1971 Chevrolet El Camino 7.4L 454ci V8 OHV [VIN:E]
- 1971 Chevrolet P20 Van 7.4L 454ci V8 OHV [VIN:E]
- 1971 Chevrolet P20 Van 7.4L 454ci V8 [VIN:E]
- 1971 Chevrolet P30 Van 7.4L 454ci V8 [VIN:E]
- 1971 GMC P25/P2500 Van 7.4L 454ci V8 OHV [VIN:E]
- 1971 GMC P25/P2500 Van 7.4L 454ci V8 [VIN:E]
- 1971 GMC P35/P3500 Van 7.4L 454ci V8 OHV [VIN:E]
- ...and 192 additional applications
Enginetech crankshaft kits include a remanufactured crankshaft along with the matching rod and main bearings for simplified ordering and guaranteed compatibility. Each crankshaft casting is individually inspected and machined on precision equipment to meet OE specifications. Rod and main journals are measured and ground to the appropriate oversize - not to exceed .030 over - and the kit includes the corresponding oversized bearings to match. Because each crankshaft is pre-ground and packaged before the order is placed, the exact journal size cannot be confirmed prior to shipment; the correct matching bearings are always included in the kit. All crankshafts are securely packaged to prevent transit damage and undergo a final engineering inspection before leaving the facility. Always verify the crankshaft part number against your engine's forging number, casting number, VIN code, rear main seal type, and reluctor wheel tooth count before installation - multiple crankshaft configurations exist for many engine families.
WARNING: This product can expose you to chemicals including lead and nickel, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
