Moroso Filler Neck Manifold Housing Chevy V8 and 90 Degree V6 Aluminum
⚠ Call for Availability
This item may be on backorder. Please contact us to confirm supplier availability and estimated lead time before ordering.
This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.
Got Questions? Feel free to email us or call us at (503) 235-1947
The Moroso 63421 is a cast aluminum filler neck manifold housing base for Chevrolet V8 and 90 degree V6 intake manifolds. It accepts a separate bolt-on filler neck or block-off plate, so the cooling system can be configured for either a radiator cap or an -AN outlet.
Key Features
- Cast aluminum base locates the filler neck at the highest point to bleed off air on cars with low mounted radiators
- Accepts bolt-on filler necks or a block-off plate, sold separately
- Includes a 1/2 inch NPT port for a water temperature sending unit
- Two 1/4 inch NPT ports for return lines on popular aftermarket cylinder heads
- Can be rotated 180 degrees for a right or left hose outlet location
Fitment
Fits Chevrolet V8 and 90 degree V6 intake manifolds.
Product Details
- Manufacturer Part Number: 63421
- Brand: Moroso
- Material: Aluminum
- Designed for use with Moroso part number(s) 63460, 63461, 63465, 63466
Shipping Height: 2.8
Shipping Length: 5.0
Shipping Width: 4.0