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Product Discontinued
EDELBROCKPART NUMBER: 350-5857
Sure Seat Valve Springs for 1965-1979 Pontiac 389-455 V8 OE Cast Iron Head
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This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
Pontiac
- Sure Seat Valve Springs
- 1965-1979 Pontiac 389-455 V8
- Outside Diameter: 1.390"
- Inside Diameter: 0.768"
- Seat Pressure: 100 lbs
- Installed Height: 1.590"
- Coil Bind: 0.990"
- Cast Iron OE Heads
- Non-Rotator
- For Use With Original Equipment Cast Iron Heads Only
- Designed for use with 350-2157 Performer cams
- Open Pressure: 242 lbs @ .470"
Since founder Vic Edelbrock Sr. began building performance intake manifolds in 1938, Edelbrock has grown into one of the most trusted names in American high-performance parts, from carburetors and intake manifolds to cylinder heads, crate engines, and EFI systems. JEGS has spent decades supplying Edelbrock components to racers, engine builders, and street enthusiasts, backing this extensive lineup with in-house technical support, fast shipping, and a Price Match Guarantee so you can choose proven Edelbrock parts with confidence.
Designed for use with Edelbrock Performer-Plus, Performer RPM, and Torker-Plus Camshafts, Sure Seat Valve Springs are made of the highest quality spring wire and precision wound to close specifications.Part TypeValve Spring
Product LineEdelbrock Sure Seat Valve Springs
BrandEDELBROCK
Package Height2.4
Package Width3.7
Package Length12.5
Weight3.69 PG
Part CategoryPerformance Parts
CoatedNo
Coil Bind HeightOEM
Damper Spring IncludedNo
PositionExhaust Or Intake
Open Height1.59 in (40.4 mm)
Open Pressure (Lbs.)285
Installed Pressure (Lbs.)100
QuantitySold as a set of 16
Installed Height1.59 in (40.386 mm)
Inside Diameter Of Inner Spring0.776 in (19.71 mm)
Valve Spring StyleStandard
Outside Diameter Of Outer Spring1.39 in (35.3 mm)
Inside Diameter Of Outer Spring0.776 in (19.71 mm)
Inside Diameter0.776 in (19.71 mm)
Spring TypeSingle
Spring Rate (Lbs./In.)N/A
Part FitmentSemi Universal
Outside Diameter1.39 in (35.3 mm)
Number Of Springs Per ValveDual
Camshaft TypeMechanical
Vendor Part Number5857
Package Qty1
Package TypeEA
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