Original 351C 4V 2-piece, 4-groove valves vs. single-groove (PHOTOS)

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Jul 21, 2012
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South Florida
My Car
'71 Mustang Mach 1 M-code "Soylent Green"
'69 Plymouth Valiant 100
'68 Plymouth Satellite
Had a very hard time finding a comparison shot online when I went to buy my new ones, so I figured I'd add some here for reference.

The 2-piece, 4-groove valves on the left are the originals from my open-chamber '72 D1ZE heads. Those on the right are new Alex's Parts stainless 1-piece single-groove valves with matching Alex keepers and retainers:

2znoc9u.jpg


21cci1x.jpg


FoMoCo lettering on the original intake valve:

6gd1ro.jpg


Alex's parts single groove locks and matching retainers:

2czyic1.jpg


-Kurt

 
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