Pontiac Connecting Rods 326 350 389 400 421 428 455 | Molnar

Molnar Technologies Connecting Rods

Molnar Technologies H Beam Pontiac rods are machined from billet 4340 steel, and then heat treated to provide improved strength. To make the rods even stronger, they are shot peened which also increases fatigue life. All Molnar Pontiac connecting rods are fitted with highly durable premium bronze bushings for use with floating pin type pistons. These rods work in the following displacement V8 Pontiac engines.

  • 326
  • 350
  • 389
  • 400
  • 421
  • 428
  • 455

Each con rod set for the Pontiac V8 engines includes ARP fasteners, lubricant and installation guidelines.

All Molnar Technologies Pontiac rods are finished in the United States at the Molnar machine shop in Michigan. Critical rod dimensions are are held to very precise tolerances of +/- .0001 of an inch, which is the tightest tolerance you will find in the performance and racing aftermarket.

V8 Pontiac Connecting Rods

H Beam Pontiac Rods

Pontiac Connecting Rod

Pontiac 326 350 400 421 428 455 Connecting Rod Length, Specs and Prices

  • Length Rod length of the connecting rod, as measured center to center, in inches.
  • Wt Weight in grams, of one complete connecting rod assembly
  • Notes Additional information about specific applications
  • Jrnl Crank rod journal diameter
  • Pin Size Piston pin diameter, in inches or millimeters
  • BE Width of the crankshaft end of one rod
  • PE Width of the piston end of one rod
  • Bolts Rods come with 7/16" diameter ARP2000 fasteners installed.
  • Part Number Molnar Technologies Connect Rod set part number
  • Price The price shown is for a complete set of rods for the engine
Part Number Length Wt Notes Jrnl Pin BE PE


$822.49 $710.38
6.625 779

Pontiac 326 through 455 CID for cranks with rod journals turned down to 2.200" diameter.

Use with floating piston pin.

2.200 .980 .994 1.140


$822.49 $710.38
6.625 766

Pontiac engines 326 through 455 CID with stock size rod journals

Use with floating piston pin.

2.249 .980 .994 1.140


$863.62 $745.91
6.625 766

Pontiac V8 engines 326 through 455 CID with stock size rod journals

For use with press fit piston pin.

2.249 .980 .994 1.140


If you do not find the Pontiac connecting rods you need, please contact us for assistance. New models are constantly in development so we may have rods available that have not been added to our site yet. We also sell other Pontiac engine performance parts including forged piston kits, bearings and more.