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Re: [Fot] TR4 stock lifter weight?

To: "Larry Young" <cartravel@pobox.com>, "Steven Belfer"
Subject: Re: [Fot] TR4 stock lifter weight?
From: "Stutzman" <stutzmans@comcast.net>
Date: Sun, 31 May 2009 15:30:20 -0400
I asked the guy at BPNW (the son) when I bought my lifters from him - how 
many do you test?
He said they buy them in batches of 1000 and test 3.
I bought them anyway because of good reports from listers.
Bruce

----- Original Message ----- 
From: "Larry Young" <cartravel@pobox.com>
To: "Steven Belfer" <colordog.1@earthlink.net>
Cc: "FOT" <fot@autox.team.net>
Sent: Sunday, May 31, 2009 2:03 PM
Subject: Re: [Fot] TR4 stock lifter weight?


> Early last year uncle jack did a lot of research on lifter hardness (check 
> the archives).  He found the BPNW lifters consistently tested about 57 Rc. 
> The only problem with them is that someone in India or Pakistan, or 
> wherever they are made decided to put a rather large chamfer on the edge. 
> This cuts down the effect diameter by about 0.040.  If your cam requires a 
> full sized lifter, don't use them without removing the chamfer.
> Larry
>
> Steven Belfer wrote:
>> I too have a new set of BP Northwest lifters that are going into my new 
>> engine build.  We shall see what happens. Their website states their 
>> hardness specs and since this is a mild race engine, I'm taking a chance 
>> with them.  Obviously, there are tons of searchable posts on lifter 
>> hardness.
>>
>> My new lifters weigh in at 68g
>> My stock lifter that handled 20 races weighed 72g
>> My race-prepped stock lifter that came out of another well used and 
>> successful race motor weighed 52g.
>>
>> ~STEVE
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