Thread: Budget SD455
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Old 02-17-2026, 07:27 PM
Maxthe222 Maxthe222 is offline
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Quote:
Originally Posted by RossGN View Post
The goal would be to build a standard 455 to stock SD455 performance and appearance. Without the expensive SD455 heads, manifolds and intake, what would be a formula for the build.
So... just a regular Pontiac 455 with a valve cover sticker?

At that point, you can just source any Pontiac 455, complete a mild or reasonable build to achieve ~310hp, and all you really need is the sticker? It won't look any closer to a SD engine if you don't have the heads or quadrajet etc, there's nothing that will look any different externally aside from the casting numbers specific to the SD.

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