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More FP350S parts leaking out, this time valvetrain kits

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captdistraction

GrumpyRacer
1,954
1,698
Phoenix, Az
Some interesting tidbits here:

https://performanceparts.ford.com/part/M-6505-FP350S

Titanium retainers have a limited lifetime, I'm surprised tool steel isn't used instead (as the weight difference is marginal). I wonder what the OEM ones are made of.

Solid valves as well.

Discuss
 
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Nice. Glad to see more 350S parts becoming available.
 
242
125
I Have been running the PAC Springs in my 5.2, Worked well for the 9 Hours I ran the car !
 

captdistraction

GrumpyRacer
1,954
1,698
Phoenix, Az
Unrelated, but after talking to Comp, PAC, JPC and others I'm running the stock retainer on a PAC-1234x spring. This will expand the retainer's refresh interval to that of the spring (which I was advised up to 4 years given I stay off the limiter, though 2 sounds like a good number vs every year for the oem boss spring).

I'm not sure the voodoo parts fit the 18 head without shimming work. I'm also curious about the solid valves over their hollow/sodium filled counterparts.
 

ArizonaBOSS

Because racecar.
Moderator
8,730
2,734
Arizona, USA

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