Match Race = 1968 Road Runner '383' vs. 1964 Belvedere '426-S' Street Wedge

[Abodybomber]

Chino,

The 426 Street Wedge was really a long stroke 383.

The only difference in Engine Components besides {+43 Cubic Inches}, was that the
426 Street Wedge had different Exhaust Manifolds, with a rear outlet exit angled at 45*.

Both had 2.25" Manifold Header outlets, and 2.25" Primary Piping, with 2.25" Tail Pipes.

The 1964/1965 > 426 'Street Wedge' and 383 4-Barrel both had the same
* Carter AFB {575 CFM} Carburetor
* Cylinder Heads {#2406516}
* Valve Size {Intake 2.08" / Exhaust 1.60"}
* Camshaft {Hydraulic}
* Valve Springs
* Dual-Point Distributor

* Compression 426/365 HP = {10.3-1}
* Compression 383/330 HP = {10.0-1}

Essentially a low rpm torque mill,keep the non racing customers satisfied. Makes sense.

 

[69 Cuda 440]

January 1964

Motor Trend

Tested a 1964 Plymouth 'Sport Fury' ~ "426 Commando"
* 4-Speed {Hurst Shifter}
* 2.93 Gears {Open Rear}
* 7.50 x 14" Tires

Performance........ 15.20 @ 95 MPH