how much should I mill them ? I want to have 11.1 compression

 

.030 is doable.

 

I just bought a Comp Cams 216/220 cam and pushrods from Internet Racers Supply. The pushrods they supplied were 7.350 long. When I called them about the error, they said that they always supply the shorter pushrods. I haven't installed the cam yet but when I do I'll make sure that the lifters have some preload.
So if you're going to mill your heads you had better go with shorter pushrods,IMO.
John

 

[quote]Originally posted by JohnR:
<strong>I just bought a Comp Cams 216/220 cam and pushrods from Internet Racers Supply. The pushrods they supplied were 7.350 long. When I called them about the error, they said that they always supply the shorter pushrods.
John</strong><hr></blockquote>

Why would they “always” supply the shorter pushrods? That seems just plain wrong to me. Most setups don't require a change in push rod lenght unless milling is done to the heads. I don't get it <img src="images/icons/confused.gif" border="0">

 

It seemed wrong to me too. The guys name is J.B. at Internet Racer's Supply in Houston. He said that guys have been having "Pump-up" problems at high RPM's and that the shorter pushrods solved the problem.
Maybe they sent me the wrong ones and he is just dancing around so he doesn't have to send me some new ones...I'm not sure?
Any thoughts, anyone?

John

 

which pushrods should I buy for my car? I plan on getting a GM hotcam and milling the stock heads .045 which should bring the compression to 11.1 <img src="gr_grin.gif" border="0">

I am not sure if I should get shorter pushrods or what. can someone help me out here?

 

Most likely will need set of 7.350 length pushrods. Stockers are 7.400 FYI.

.045 milling sounds like a lot.

 

7.350 pushrods would be the right ones to go with but you may want to rethink milling your heads .045.

 

If it doesn't seem right to you, I'd make them send new ones.

 

[quote]Originally posted by spiesscj:
<strong>If it doesn't seem right to you, I'd make them send new ones.</strong><hr></blockquote>

Personally, I'd send them back and purchase the stock length hardened pushrods.