Re: [gremlintime]

["BRIAN DYBA" <DYBAMX@xxxx>]

Mark,
I don't know how to tell what year your 401 is, but there is only one
difference that matters. Is it a 71-73 or is it
74 and newer. The 74 and newer have the less desirable heads with bridged
rocker arms. These heads still have the big valves and breathe just as well
as the early ones, they just don't hold up to higher rpms because of the
weak aluminum
bridges. There are ways around this such as machining them for individual
rockers or by buying the roller rocker kit from
American Performance Products in Fla. This kit is supposed to replace the
bridged set-up without any machining.

I have not used this kit and I do not know anyone personally that has but I
would love to hear from someone who has.

Hope this helps
Brian Dyba

----- Original Message -----
From: Mark Kreutter
To: gremlintime@xxxxxxxxxxxxxxx
Sent: Monday, March 05, 2001 12:29 AM
Subject: [gremlintime]


Can anyone give me some help on identifying what year my 401 is? Where do I
look on the engine for numbers that will help. What will the numbers tell
me? Any help would be great. Thanks

Mark
71 232 auto
72 258 stick ( parts )


[Non-text portions of this message have been removed]



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