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What length pushrods?

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Old Jul 26, 2005 | 06:22 PM
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Default What length pushrods?

Im fixing to start ordering parts for a buddies car ive been working on. I am among other things putting on a set of patroit 5.7 stage II heads (unmilled) and a set of comp cams 850-16 lifters (the stock replacements).

I installed the TSP 233/239 in his car along with 7.4 hardened pushrods about 4,000 miles ago. will the 7.4's still work or will i need a shorter rod, I thought I heard the comp lifters are a hair taller thus requiring a shorter 7.35 rod. what do i need for this application.

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Old Jul 26, 2005 | 08:27 PM
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The 850-16's are stock replacements. If they are a hair taller i wouldn't think it would be enough to need shorter pushrods. I say save the money and run the 7.40's that you already have. What head gaskets are you guys going to run?
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Old Jul 26, 2005 | 10:03 PM
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Originally Posted by HavATampa
The 850-16's are stock replacements. If they are a hair taller i wouldn't think it would be enough to need shorter pushrods. I say save the money and run the 7.40's that you already have. What head gaskets are you guys going to run?
thats what i was thinking, i just wanted to check.I was going to get a set of the GM replacements. I guess the only differance in height would be with the lifters.

does anyone else have any knowledge on the comp lifters?
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Old Jul 26, 2005 | 11:30 PM
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I've had to install 7.350" pushrods on the comp 850 lifters (slightly taller) with both stock/aftermarket heads. We just recently been having custom length pushrods made in the 7.375" length for those "in-between" cars, I have used these in a few cars with good results also.
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