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ragtop71 Profile
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Registered: 11-2009
Posts: 17
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Valve spring install height


Can I use .100 taller valve spring retainers on a 340, and be legal?
1/14/2010, 10:36 pm Link to this post Send Email to ragtop71   Send PM to ragtop71
 
Greg Gessler Profile
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Registered: 08-2007
Location: Blairstown,NJ
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Re: Valve spring install height


I just updated our F/S rules page to be the same as the PSMCDR rules. It appears that the PSMCDR will have some possible rule updates in 2010.

This is from the F/S rules:
Valve Train: The complete valve train must be factory stock for the year, make, and horsepower claimed. Rocker arm ratio must be correct for the year and horsepower claimed. Roller tip rockers allowed as long as correct ratio is used. No full-roller rocker arms allowed. Random requests for valve cover removal WILL happen. Poly-lock type adjustable nuts, jam (crimp) nuts, and adjustable pushrods are allowed. Valve covers must be correct for the make, year, and horsepower claimed.



---
Rochester, Carter & Ford Carburetor Parts
www.QuadrajetParts.com
1/15/2010, 12:52 am Link to this post Send Email to Greg Gessler   Send PM to Greg Gessler
 
Black Cloud Profile
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Registered: 12-2009
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Re: Valve spring install height


Valve Train: The complete valve train must be factory stock for the year, make, and horsepower claimed.


So that means OEM factory materials only, right? If so, alum. roller tipped rockers are the only exemption?

are there specific limitations on differences in valve train parts size specs from OEM to aftermarket?

Black Cloud
1/28/2010, 12:40 pm Link to this post Send Email to Black Cloud   Send PM to Black Cloud
 


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