Valve spring questions for you 218/230 gurus


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Posted by DDD [209.253.157.5] on Tuesday, August 18, 2015 at 09:09:39 :

looking for an inexpensive place to buy intake and exhaust valve springs for a 1952 plymouth P23 motor.

all experience I have, as well as looking at places like VPW website indicate that ALL dodge/plymouth 218/230 motors use the same spring, for either EXHAUST or INTAKE.
(Part #CC869449 with VPW)

Is that first assumption correct?

I also surmize that the 218 and the 230 engines also use the same springs.

Am I also correct so far? again, the VPW website list ONE spring and for "all flat heads" as it states

well, then, looking at the Rock Auto website, I can find this spring under a 1954 truck, 218 application.

however.... it lists two different springs so not sure what to do:

SEALED POWER VS304
w/o Rotocaps; 2.0000" Free Height

or...

SEALED POWER VS506
w/Rotocaps; Use w/Rotocaps; 1.8570" Free Height

I think its the first one..VS304
Max OD = 1.174
height open - 1.375
closed height = 1.75"
coils: 8:1

can anyone confirm the exact spring I would order.. again, they have two different springs in the same application listing.

Or am I to think maybe the exhaust and the intake use a different spring by chance?

thanks all



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