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Big Block Chevy Intake Manifolds
Intake ManifoldBig Block Chevy 396-502 (Oval Port) Spread Bore/Square Bore Idle to 5500 RPM Cast Aluminum
- Port exit dimensions: 1.75" x 1.68"
- Recommended Intake Gasket: JEGS p/n 555-210102
- Estimated runner length - Shortest: 7.00"
- Estimated runner length - Longest: 8.50"
- Manifold height: (A) 4.75", (B) 5.06"
- Click here to determine carburetor pad height.
- Stock/stamped steel valve covers may require 3/16" (or thicker) valve cover gaskets. We recommend: 555-21110 or 555-210171 for adequate runner clearance.
| JEGS Carb Recommendations/Notes | ||||
| Carburetors | ||||
| 570 CFM | 670 CFM | 770 CFM | ||
| Up to 300 HP | 300 to 400 HP | 400 to 500 HP | ||
| Manual Choke | 510-0-81570* | 510-0-81670* | 510-0-81770* | |
| Electric Choke | 510-0-80570* | 510-0-80670* | 510-0-80770* | |
| * Square Flange Carburetors Require Adapter Plate 555-15442 | ||||
| Carburetor Studs | ||||
| 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 | ||||
| 555-16100 | Open | |||
| 555-16105 | 4-Hole | |||
| Intake Manifold Bolts | ||||
| 555-83205 | BB-Chevy | |||
Part TypeIntake Manifold
BrandJEGS
Package Height5.7
Package Width10.9
Package Length22.5
Weight17.92 PG
Engine Block StyleStock/OEM standard deck
UsageStreet/Hi-Performance
PositionN/A
Intake StyleDual plane
EmissionWithout EGR
Cylinder Head TypeOval Port- Small
MaterialAluminum
Carburetor QuantityOne
Engine Make/SizeChevy Big Block (396-502)
Intake Section IncludedComplete
Basic Operating Rpm RangeIdle-5,500
EgrWithout EGR
Rpm RangeIdle-5500
FinishNatural
Intake Manifold Height4.905 in (124.587 mm)
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations




![2161 Performer 2-O Intake Manifold for 1965-1990 Big Block Chevy Engines w/Oval Port Heads [Satin Finish]](https://www.jegs.com/images/mini_200/300/350/350-2161.jpg)