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Old 05-04-2006, 02:54 AM
TerroRx7 TerroRx7 is offline
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SBC heads with weird valve seals

hello all

I bought a 1986 GMC K15 which has a mexican reproduction 350 which was rebuild recently

after inspecting the heads I found no valve seals and they won't accept regular 350 valve seals

I've tried many types and I found a set of stock 454 Umbrella style seals that fits perfictly

but after mounting the springs I found that they touch the seals even when uncompressed

what should I do ?
Replace the springs with something bigger ( wider ) ? stock? aftermarket?
try other seals ?

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