This plug fits the intake manifold, exhaust crossover on the bottom of a 1959-66 Buick 401/425 nailhead engine with a 2 or 4 barrel stock intake manifold.
For an easy installation, insert the plug into the bottom of the manifold and hit the center with a hammer, this will flatten and expand the plug for a secure fit.
If you have a Buick 364 engine and require the 3″ plug please click this link here.
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Note: Orders that contain more than one item are assigned a specific processing time, based on the individual product.
Prior to shipment, we check the item thoroughly. The majority of orders are shipped within 48-hours. The expected delivery time will be between 3-7 days.
Returns
The inventory is always changing, and is not completely managed by us due to the involvement of multiple different parties, such as the factory and our warehouse. The actual stock can be changed at any time. It's possible that you may not receive your purchase after it's been placed.
The policy is for 30 days. If the 30 days have elapsed from the date you purchased the product, we are unable to provide a refund or exchange.
To be eligible for a refund the item must be in good condition and in the same state as when you received it in. The item must be returned in its original packaging.
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