Has anybody put valves w 5/16/8mm stems in BB RPM heads? - Moparts Forums

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Has anybody put valves w 5/16/8mm stems in BB RPM heads? #2398530 11/04/17 08:36 PM 11/04/17 08:36 PM
Joined: Jan 2003 Posts: 4,395 The Pale Blue Dot Skeptic OP master
Skeptic OP master Joined: Jan 2003 Posts: 4,395 The Pale Blue Dot	I haven't been able to find anything here, but since smaller valve stems is a trend, just curious if anybody's tried it out.

Re: Has anybody put valves w 5/16/8mm stems in BB RPM heads? [Re: Skeptic] #2398539 11/04/17 09:06 PM 11/04/17 09:06 PM
Joined: Jan 2007 Posts: 7,664 IN A ahy master
ahy master A Joined: Jan 2007 Posts: 7,664 IN	Edelbrock lists 11/32" valves as standard. I am sure you could find a 5/16" valve in the right length. It would require fitting new valve guides. Sounds like a lot of work and expense to gain (lose) 1/32".

Re: Has anybody put valves w 5/16/8mm stems in BB RPM heads? [Re: Skeptic] #2398568 11/04/17 09:56 PM 11/04/17 09:56 PM
Joined: Dec 2007 Posts: 12,587 Great Neck,LI,new york hemi-itis I Live Here
hemi-itis I Live Here Joined: Dec 2007 Posts: 12,587 Great Neck,LI,new york	Recently changed my intakes to improve geometry.Bought a set of Manley severe duty,the stems were .010.Had to return them and get Ferrea valves because all my stuff has a .008 stems & guides. What does your guide measure? HEMI-ITIS has no cure. My condition is fully BLOWN!!

Re: Has anybody put valves w 5/16/8mm stems in BB RPM heads? [Re: Skeptic] #2398578 11/04/17 10:46 PM 11/04/17 10:46 PM
Joined: Jul 2009 Posts: 490 IL E EchoSixMike mopar
EchoSixMike mopar E Joined: Jul 2009 Posts: 490 IL	Haven't done so in RPM heads, but I've put 7mm titanium valves in 452 iron heads as well as Stage 6 heads. I think I'm going to try the same with some of the chinesium victor knock off since they'll have the flow to turn the rpm to make the Ti valves really worth it. S/F....Ken M

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