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Suitable For The Following Models:
Compatible for Chevy 400 350 327 307 305 283
Packeage Includes: 16 ×Beehive Valve Springs
17 × Hardened Valve Retainers
32 × Valve Locks
Product Parameters：
Outside Diameter 1.260 Inside Diameter 0.785
Closed: 114 lbs @ 1.710
Open: 318 lbs @ 1.210
Coil Blind @: 1.160
Spring Type: Double with Damper
For .500'' Lift
lucas
2025-05-26 19:25:35
i was buy but i need all new heads, but is good product !!
Mike
2025-04-25 12:53:38
Springs a retainers are fine but the valve retainer locks don’t fit a stock 3/8 valve I think they are for a 11/32 valve
Customer
2025-04-15 16:08:05
Don't buy. 100 miles on these springs. Correct lift and correct pounds correct specs. No Reason for these to break as they did other than bad parts.
John v torres
2025-02-12 12:16:21
Great parts
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