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Olds 307-403
- 1966-1985 Small Block Oldsmobile 307-403ci
- 4-bbl Spread-Bore Carb Flange (non EGR)
- 1500-6500 RPM Range
- Polished Finish
Designed for 330-350-403 c.i.d. Oldsmobiles and 1980-1/2 to 1985 307-inch engines with 5A heads (casting #3317). The Performer RPM Olds manifold is a high-rise, dual-plane design with 180° firing order engineered for maximum top-end horsepower while maintaining throttle response.
Installation Notes: - Recommended intake gasket: Jegs 555-210700
- Port exit dimensions: 1.22' x 1.86'
- Manifold height: (A) 4.80' , (B) 5.80' (2" taller then stock)
- Carb pad height = 5.30' View Manifold 'A/B' Measurement Guide.
- Port flange has extra material above the runner for use with 455 heads or Edelbrock Performer RPM heads 350-60519
- Has clearance for HEI distributor
- Accepts square bore 4150 style carb flange without adapter
- No provision for OEM choke
- OEM carb requires conversion to electric/manual choke
- Will not clear hood on 403 Olds Firebird/TA
Carb Recommendations - Edelbrock Thunder AVS 650 cfm Carburetor Manual Choke p/n 350-1805 , Electric Choke p/n 350-1806
- Edelbrock Performer 750cfm Carburetor Manual Choke p/n 350-1407 , Electric Choke p/n 350-1411
- Edelbrock Performer 800cfm Carburetor Manual Choke p/n 350-1412 , Electric Choke p/n 350-1413
- Edelbrock Thunder AVS 800cfm Carburetor Manual Choke p/n 350-1812 , Electric Choke p/n 350-1813
Part TypeIntake Manifold
BrandEDELBROCK
Package Height7.3
Package Width14.6
Package Length24.1
Weight26.15 PG
Part CategoryPerformance Parts
Engine Block StyleStock/OEM standard Deck
UsageStreet/Hi-Performance
Number Of CarbsOne
Intake MaterialAluminum
PositionN/A
Intake StyleDual plane
EmissionWithout EGR
QuantitySold individually
Cylinder Head TypeStandard
Intake FinishPolished
Carburetor QuantityOne
Engine Make/SizeOlds 307-403
Intake Section IncludedComplete
Basic Operating Rpm Range1,500-6,500
EgrWithout EGR
Rpm Range1500-6500
Vendor Part Number71111
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
