Specifications

 
1962 Max Wedge     Available in all intermediate (B-body) Dodges except station wagons, including Dart, Polara, and Polara 500. Engine was the Ramcharger 413 with either 11.0:1 compression (410 horsepower) or 13.5:1 compression (420 horsepower). 

1962 Max Wedge      Available in all intermediate (B-body) Plymouths except station wagons, including Savoy, Belvedere, Fury and Sport Fury. Engine was the Super Stock 413 with either 11.0:1 compression (410 horsepower) or 13.5:1 compression (420 horsepower). 

1963 Max Wedge     Available in all intermediate (B-body) Dodges including 330, 440, Polara and Polara 500. Engine was the Ramcharger 426 with either 11.0:1 compression (415 horsepower) or 13.5:1 compression (425 horsepower). 

1963 Max Wedge     Available in all intermediate (B-body) Plymouths including Savoy, Belvedere, Fury and Sport Fury. Engine was the Super Stock 426 with either 11.0:1 compression (415 horsepower) or 13.5:1 compression (425 horsepower). 

1964 Max Wedge      Available in all intermediate (B-body) Dodges including 330, 440, Polara and Polara 500. Engine was the Ramcharger 426 with either 11.0:1 compression (415 horsepower) or 12.5:1 compression (425 horsepower).

1964 Max Wedge      Available in all intermediate (B-body) Plymouths including Savoy, Belvedere, Fury and Sport Fury. Engine was the Super Stock 426 with either 11.0:1 compression (415 horsepower) or 12.5:1 compression (425 horsepower).

Horsepower peaked at 5600, torque peaked at 4400 advertised for all engines.
1962 Features

Unique heads with 25% larger intake and exhaust ports (Can't use on 383 or 400)
No heat crossover passages
2.08 intake valves and 1.88 exhaust valves, tulip design
510 lift mechanical camshaft with 300 degree duration
Special tubular pushrods Dual valve springs-and nodular iron adjustable rockers
One piece ram induction manifold with 15 inch runners Staggered dual Carter AFBs with 650 cfm each, model  3447,  1 7/16" primary   1 11/16" secondary
11.0 or 13.5 TRW forged pistons
Forged and magnafluxed rods
Cast iron headers
Deep grove pulleys
Special baffled oil pan and custom swinging pickup, No valve seals in heads

The 1962 Melrose Missile was the first production passenger car with a factory option engine to achieve a quarter mile time in the 11's. Tom Grove ran an 11.93 @ 118.57 on July 15th, 1962.

1963-64 Stage II and III Features

Increased displacement, 426 cubic inches for the Stage II. For Stage III, carburetors were changed to model 3705, 1 11/16" primary   1 11/16" secondary. The camshaft was increased to 520 lift and 320 degrees of duration on the Stage III 425 HP engines. 415 HP engines used the 300-308 degree cam with 520 lift. There was a new cast iron header offered which was referred to as the Tri-Y. Cam specs vary according to publications.

Some Original Part Numbers

1963-4 Max Wedge Engine Block                                2406728

1963-4 Max Wedge Connecting Rod                            2406885

1962 Max Wedge  Cylinder Head                                 2402286

1963 Max Wedge  Cylinder Head                                 2463209

1964 Max Wedge  Cylinder Head                                 2406518

1964 Max Wedge  415 HP Camshaft                            2495055  

1964 Max Wedge  425 HP Camshaft                            2525077

 

 

 

 
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