ENGINE    DECODING

B/RB Engine Block Casting Numbers

1852 029 413 RB Truck &1962 Max Performance
2120 529 413 RB 59-65
2205 697 413 RB 59-65 Pass. Veh.
2205 697 426 RB 64 Pass. Veh.
2406 730 426 RB 63-65 Wedge & Max Perf. Wedge
2432 230 426 RB 64-66 Wedge & Max Perf. Wedge
2468 030 413 RB  
2468 330 426 RB 64-71 426 Hemi (Stage I & II)
2536 430 440 RB 66-72
2468 130 383 B 59-71 (Full Series)
2658 836 426 RB Commercial
3614 230 400 B 71-72 (Full Series)
3698 630 400 B 73-78 (Full Series)
3698 830 440 RB 73-78 (Full Series)
4006 530 400 B 76-78 (Full Series)
4006 630 440 RB 78


B/RB Mopar Head Casting Numbers

Casting# c.c. Application Intake Exhaust
1406 740   58-59 361 H.D. Truck 1.94" 1.60"
1737 622 78.5 58-60 350/361/383 1.94" 1.60"
1737 635 78.5 58 350/361 D500 & Similar 1.94" 1.60"
1844 705 78.5 58-59 350/361/383 LP 1.94" 1.60"
1851 509 78.5 59 383/361/HP413 2.08" 1.60"
1851 524   58-71 350/361/383/413 Commercial    
1944 705   58 350, 58 350, 61 361    
2128 521 78.5 60 361/383/413/300F 2.08" 1.60"
2128 522 78.5 60-61 361/383 LP 1.94" 1.60"
2202 594   58-71 (Commercial)    
2206 324   62-67 361 / 383 / 413    
2206 924 78.5 61-62 361 / 383 / 413, 61 300G-H 2.08" 1.60"
2264 547   60-71 361 Commercial / 413    
2268 341   65 426 (Standard Engine)    
2402 286 81.0 62 413 Max Wedge 2.08" 1.88"
2402 557 78.5 63 300J & 300K (Early Series) 2.08" 1.74"
2406 158 78.5 67 440 (Standard Engine) 2.08"1.60"  
2406 209 81.0 63 Max Wedge 2.08" 1.88"
2406 516 78.5 64-67 361 / 383 / 413 / 426 / 300L 2.08" 1.60"
2406 518 86.0 64 Max Wedge 2.08" 1.88"
2406 740   63-68 361 / 413 Marine / 413 Truck    
2406 780   65-67 383 Truck    
2408 520 78.5 64 Late Model 300K With Cross Ram Intake Manifold 2.08" 1.60"
2463 200 78.5 63 361 / 393 / 413 / 426 2.08" 1.74"
2466 676   71-77 361 truck / 361 Marine / 413    
2780 915 78.5 67 440 High Performance 2.08" 1.74"
2806 887   426 Marine / 426 Industrial    
2843 906 88 68-71 383 / 440 2.08" 1.74"
2899 913   60-71 413 Truck    
2899 943   71-77 361 Truck / 413    
3462 346 88 71 Late Model 383 / 440 2.08" 1.74"
3462 346 88 72-73 400 / 440 2.08" 1.74"
3751 213   73 400 / 440 MotorHome 2.08" 1.74"
3769 975 88 74-75 400 / 440 2.08" 1.74"
4006 452 88 76-78 400 / 440 2.08" 1.74"
3614 476   86- Stage 4 2.08" 1.74"


B/RB Common Intake Manifold Casting Numbers

Casting # Application
2408 156 63 Max Wedge NASCAR Single Plane
2806 178 68-69 440 4bbl
2806 301 68-69 383 4bbl
2951 666 70-71 383 4bbl
2951 736 70-71 440 4bbl
3614 014 72 440 4bbl
3614 046 72 400 4bbl
3671 879 73 400 4bbl
3698 442 74 400 4bbl
3698 444 73 440 4bbl
3751 721 74 440 4bbl
3830 733 74-76 440 4bbl
3830 949 75-76 440 4bbl
2946 278 70-71 440 6bbl
3412 048 69 440 6bbl (Aluminum)


B/RB Rod & Crankshaft Numbers

RODS

Rods Forging # Engine Application
1737 692 383 B 58-71
1737 692 400 72-78
1851 535 383 / 426 (RB) 59-65 (Standard)
1851 535 440 66-79 (Except 70- 72 HP)
1737 642 350 (Forged)

361 (Forged)

383 (Forged

58 (Car)

58-61 (Car)

59-61 (Car)

1851 127 413 (Forged) 59-64 (Car)
1851 436 413 (Forged) 60-77 (Truck with 8-bolt crank)
1855 527 383 (Forged) 59-61 (Car)
1978 698 RB (Forged) 59-61 (Car)
2203 155 B (Forged) 59-61 (Car)
2206 157 361 (Forged) 60-78 (Truck with 8-bolt crank
2206 158 440 (Forged)

413 (Forged)

426 (Forged)

66-72 (Car), 71-77 (Truck)

62-65 (Car)

63-65 (Car)

2206 159 400 (Forged)

383 (Forged)

361 (Forged)

71-72 (Car), 72 (Truck)

62-71 (Car), 67-71 (Truck)

62-66 (Car), 72-78 (Truck)

2206 160 440 (Forged)

413 (Forged)

426 (Forged)

66-78 (Car), 70-80 (Truck)

62-65 (Car)

63-66 (Car)

2402 330 426 (Forged) 63-64 Max Wedge
2463 548 426 (Forged) 64 Max Wedge, 8-bolt crank
3462 923 383 (Cast)

400 (Cast)

69-71 2bbl

71-78 (Car), 73-79 (Truck)

3751 877 400 (Cast) 73-78 (Car), 73-79 (Truck)
3751 888 440 (Cast) 73-78 (Car)
4027 172 400 (Cast) 73-78 (Car)
4027 175 440 (Cast) 73-78 (Car), 73-79 (Truck)

CRANKSHAFTS

Crank # Engine Type Application
1521 436 413 Forged Truck 8-bolt crank
1737 642 350

361

383

Forged

Forged

Forged

58 Car

58-61 Car

59-61 Car

1851 127 413 Forged 59-64 Car
1851 436 413 Forged 60-77 Truck 8-bolt crank
1855 527 383 Forged 59-61 Car
1978 698 RB Forged 59-61 Car
2203 155 B Forged 59-61 Car
2206 157 361 Forged 60-78 Truck 8-bolt crank
2206 158 440

413

426

Forged

Forged

Forged

66-72 Car, 71-77 Truck

62-65 Car

63-65 Car

2206 159 400

383

361

Forged

Forged

Forged

71-72 Car, 72 Truck

62-71 Car, 67-71 Truck

62-66 Car, 72-78 Truck

2206 160 440

413

426

Forged

Forged

Forged

66-78 Car, 70-80 Truck

62-65 Car

63-66 Car

2402 330 426 Forged 63-64 Max Wedge
2463 548 426 Forged 64 Max Wedge, 8-bolt crank
3462 923 383

400

Cast

Cast

69-71 2bbl

71-78 Car, 73-79 Truck

3751 877 400 Cast 73-78 Car, 73-79 Truck
3751 888 440 Cast 73-78 Car
4027 172 400 Cast 73-78 Car
4027 175 440 Cast 73-78 Car, 73-79 Truck

Big Chrysler

361, 383, 400, 440, B/RB Engines

Firing Order

Cylinder Numbering Distributor Rotation

Rotor Under Cap Spins:

Counter

Clockwise

Torque Specs

always torque bolts in three equal increments

Bolts or Parts Lube or Sealer Torque to:
Main Caps Engine Oil 85 ft-lbs.
Connecting Rod (Plain) Engine Oil 45 ft-lbs.
Connecting Rod (Heavy Duty) Engine Oil 55 ft-lbs.
Crankshaft Rear Bearing Seal Engine Oil 30 ft-lbs.

Cylinder Heads

     Iron Heads

Engine oil

(blind hole)

Sealer

(water jacket)

 

70 ft-lbs.

Rocker Shaft brackets Engine Oil 25 ft-lbs.
Oil Pump Cover Engine Oil 10 ft-lbs.
Oil Pump Engine Oil 35 ft-lbs.
Oil Pan Engine Oil 15 ft-lbs.
Camshaft Locking Bolt Thread Locker 35 ft-lbs.
Timing Cover Engine Oil 10 ft-lbs.

Intake Manifold

(Cast Iron Heads)

Non- Hardening Sealer 40 ft-lbs.
Valve Cover Engine Oil 6 ft-lbs.
Water Pump Non- Hardening Sealer 30 ft-lbs.
Fuel Pump Engine Oil 30 ft-lbs.
Starter mounting Bolts Engine Oil 50 ft-lbs.
Exhaust Manifold Anti-Seize Lubricant 30 ft-lbs.
Spark Plugs No Lube or Sealer 20 ft-lbs.

Flexplate/Flywheel Cap Screws

Thread Locker 55 ft-lbs.
Flexplate to Torque Converter Thread Locker 270 in-lbs.

Centerbolt

(Harmonic Damper)

Engine Oil 135 ft-lbs.

Bellhousing

(Transmission to Block)

Engine Oil 50 ft-lbs.