quote:

Originally posted by nomad:
Did you go to a smaller diameter spring on the last go round? Like from a 1.625 spring to a 1.55 or 1.50? I can't imagine running an aluminum head and no protection from the spring.

When I first saw your posts my thoughts were a spring eating a titanium retainer. A lack of head protection never crossed my mind.

For the record I use PAC-1325 springs, PAC-S103 seats, and PAC-R606 retainers.

quote:

Originally posted by nomad:
Correct me if I'm wrong but, those valve springs don't look happy. Somehow, they're banging the edge of the pocket and rolled it. Harmonics?

Looking at the parts sheet from your engine. They don't list Manley springs. Just a 408-409 dual vasco jet valve spring. Maybe a generic spring wound to R&M specs.

Fix the heads, freshen the bottom end, and you'll be good to go.

quote:

Originally posted by imakehp:
I don't know how close you run your springs from coil bind, so whichever you use (cups or locators)
recheck pressure and coil bind. They are .060" thick so they matter.
BTW, in your situation, I'd run the ID locator if it will fit inside your inner spring. No expanding the spring pockets needed that way. Cups are preferred, and maybe cutting for the cups could clean up the rolled/flaking aluminum....like others here I'm kinda surprised R&M would not have one of the two in there.

quote:

Originally posted by nomad:
Funny, R&M doesn't list a spring seat on the parts list. This list is pretty detailed. I mean I was charged for one gallon of VP 114 used in the dyno test. As mentioned before there are separate part numbers for the retainers, locks, and springs. The BB-2+ heads are listed as "complete". Maybe they used the seats supplied by Brodix and changed out the springs, retainers, and locks.

I can't believe R&M would send an engine out with out spring seats. I can't find any pictures with the valve covers off but, I'm willing to bet there were spring seats on that motor when your Dad and I loaded it into your trailer.

If I were to hazard a guess and it's just a guess, you had springs seats until your heads were freshened last. Missing one, I'd say that's an accident. All of them gone it's time for either a conversation or a close inspection when the engine comes back.