Installation Time
(approx) 3 Hours
Difficulty Level:
Mechanical expertise or professional installation required.
Installation Guides
No guide available for this part yet.
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Features, Description, Q&A, Specs & Installation
Authentic Big Block Performance. The Intake Manifold is a premium reproduction component designed for enthusiasts restoring or upgrading big block Chevrolet engines. Engineered to maintain factory specifications, it provides the correct flow characteristics and performance associated with the original GM design. This manifold fits 1970 Chevrolet Corvette C3 models and serves as a direct replacement for GM part number 3963569, ensuring both accurate fitment and authentic appearance.
Construction and Appearance. Crafted from high-quality aluminum, this intake manifold combines strength and lightweight performance. The raw metal finish replicates the original casting texture, while the inclusion of the authentic “W” snowflake logo from the Winters Foundry adds historical accuracy. The correct GM casting number (3963569) is clearly displayed, making it ideal for factory restorations. Designed with a low-profile configuration, it provides excellent hood clearance and optimized air-fuel distribution for both performance and drivability.
Installation. The Intake Manifold installs as a direct replacement using factory-style gaskets and hardware. Professional installation is recommended to ensure proper sealing and alignment with cylinder heads and carburetor mounting surfaces. The included splash pan enhances engine protection and maintains correct airflow characteristics. Once installed, it restores or enhances original big block performance with reliable power delivery and factory-level fitment.
Application. This Intake Manifold fits 1970 Chevrolet Corvette C3 models equipped with big block 396 or 454 engines. Perfect for concours restorations or high-performance builds, it maintains period-correct authenticity while delivering durable performance. With its accurate reproduction details, Winters Foundry markings, and precision aluminum construction, this manifold represents the ideal combination of heritage and functionality for classic Chevrolet engines.
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation Info
Installation Time
(approx) 3 Hours
Difficulty Level:
Mechanical expertise or professional installation required.
Installation Guides
No guide available for this part yet.
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