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Vehicle Info NeededMILODONPART NUMBER: 697-45490-1
Megaflow Intake Valves 1959-1967 Pontiac 350, 389, 400, 421, 428, 455 - Sold Individually
$3095
Ships on 09/15/2026
Lowest Price GuaranteePontiac - 350, 389, 400, 421, 428, 455
Megaflow Intake Valves 1959-1967 Pontiac 350, 389, 400, 421, 428, 455 Head Diameter: 1.960 in. Length: 4.880 Sold Individually
Specs:
- Type: Intake
- Head Diameter: 1.960 in.
- Stem Diameter: .341 in.
- Length: 4.880 (1959-1967)
- Tip Length: .250 in.
- Head Angle/Radius: 12-Degrees 3/8 in. R
- Margin: .060 in.
- Seat: .060 in.
- Grams: 109.900
Part TypeValve
BrandMILODON
Package Height2.0
Package Width2.38
Package Length9.75
Weight6.88 PG
Part CategoryPerformance Parts
Valve Stem Diameter (Mm)8.661
Valve Head Diameter1.96 in (49.8 mm)
Overall Valve Length (Mm)123.952
Lock Groove Quantity1-groove
QuantitySold individually
Valve Seat Width0.06 in (1.5 mm)
Overall Valve Length4.88 in (124 mm)
Valve Material21-4N stainless steel
Approximate Weight (G)110
Valve Head Diameter (Mm)49.784
Valve Head Style12 degree dish
Valve Tip Length0.25 in (6.4 mm)
Valve Tip Length (Mm)6.35
Undercut StemYes
Valve Stem Diameter0.341 in (8.7 mm)
Swirl-PolishedYes
Lock Groove StyleConventional
Vendor Part Number45490-1
Package Qty1
Package TypeEA
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