Small Block Chevy Intake Manifolds
- Port exit dimensions: 1.040 in. x 2.030 in.
- Recommended Intake Gasket: JEGS p/n 555-210003
- Intake gasket port matching is recommended for optimum performance
- Estimated runner length - Shortest: 4 in.
- Estimated runner length - Longest: 6 in.
- Manifold height: (A) 4.130 in., (B) 5.210 in.
- Click here to determine carburetor pad height.
- It May also be used on Vortec or 1995-Earlier blocks with Vortec pattern cylinder heads
- Accepts late model alternator, water neck, AC, and HEI
- No provision for divorced or heated choke
- Stock/stamped steel valve covers may require 3/16" (or thicker) valve cover gaskets. We recommend 555-210076 for adequate runner clearance.
|JEGS Carb Recommendations/Notes|
|570 CFM||670 CFM||770 CFM|
|Up to 300 HP||300 to 400 HP||400 to 500 HP|
|555-15840||1-1/2" Studs||Suggested for carb and gasket only|
|555-15841||2" Studs||Suggested for carb and 1/2" spacer|
|555-15842||2-1/2" Studs||Suggested for carb and 1" spacer|
|555-15846||3-1/2" Studs||Suggested for carb and 2" spacer|
|Carburetor Base Gaskets|
|Intake Manifold Bolts|
|555-83201||SBC - Vortec|
Dual Plane Performance!
JEGS Champion Series 331 Dual Plane Aluminum Intake Manifolds feature the latest machining techniques to ensure the best quality and results. The process to make these cast aluminum performance intake manifolds yields a lighter, more consistent casting for smoother intake runners, optimal fuel atomization, and improved fuel & air distribution to the cylinders. What does all this mean? MORE POWER!
Where are these manufactured?
What is a water neck that fits this? Just says accepts late model.
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