Dodge P450 Series Parts & Accessories

Dodge P450 Series Parts & Accessories

The Dodge P450 Series is the heaviest configuration within Dodge's P-series forward-control commercial van platform, designed for maximum payload capacity in step-van, walk-in delivery, and specialty utility applications. These trucks ran the 360 cubic inch LA V8 as their primary engine, supported by the stoutest axle, brake, and suspension packages in the P-series lineup. Restoration and maintenance parts for the P450 are available through Mopar commercial channels and classic truck restoration suppliers who specialize in these working platforms.

Popular Upgrades

High-demand P450 Series parts include complete 360 LA V8 tune-up kits, Carter and Holley carburetor rebuild components, exhaust manifold gaskets, and electronic ignition conversion kits for pre-electronic distributor applications. On the chassis side, heavy-duty brake hardware covering dual-circuit master cylinders, wheel cylinders, and high-friction brake shoe sets are essential for any P450 restoration. Leaf spring hardware including shackle kits, U-bolts, and spring eye bushings are also consistently ordered for chassis work on these high-GVW trucks.

Performance & Handling

The 360 LA V8 in P450 applications is the right engine for the platform, and it responds meaningfully to tube header upgrades and a four-barrel carburetor conversion. Edelbrock and Holley both offer intake manifold and carburetor combinations for the 360 LA that work well in commercial truck applications where torque across the mid-range matters more than peak horsepower.

What is the GVW rating for the Dodge P450 Series?

The P450 Series was rated in the heaviest class of P-series vans, typically carrying a GVW in the range of 14,000 to 16,000 lbs depending on configuration and year. This rating dictates the front axle, brake, and suspension specs on these trucks, which are heavier-duty than anything found on P300 or P410 platforms. Always confirm the axle code before ordering front end or brake components.

Are replacement exhaust manifolds available for the P450 360 LA V8?

Yes, replacement cast iron exhaust manifolds for the 360 LA V8 are available from Mopar and aftermarket suppliers. Aftermarket tube headers designed for the 360 LA are also available and provide significantly better exhaust flow than the factory manifolds. Header selection should account for the tight engine bay packaging of the P-series cab-over design.

Browse related categories including Mopar parts and accessories, exhaust systems and headers, and suspension components for more parts across your build.