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 ?