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Old 08-31-2009, 03:24 PM   #1
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Default LT4 hot cam kit questions

I have pretty much decided on the hotcam. It fits my performance goals and budget. I had a couple questions about it though. It doesn't come with pushrods. Do i need a different length or just stock replacements? If they are stock length how important is it to replace them? Also do i need bigger injectors? What size should i get? I already have full exhaust. I'm planing on a cut out and electric water pump, probably a 52 mm tb. CAI, and msd coil and 6al. Is all of this necessary? Anything i could omit? Any info will be appreciated thanks.
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Old 08-31-2009, 03:27 PM   #2
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You really don't need new pushrods with the LT4 springs, they aren't stiff enough and the rockers in the kit are SA. If you were to replace them and no changes have been made to the heads (milling, valve seats...) you should be fine with stock replacements, but it is always better to measure.

You will be fine with stock injectors on that cam, as for the other stuff it will add a few hp here or there, no need to buy it all at once.
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Old 08-31-2009, 03:57 PM   #3
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i was getting pretty close to maxing out my stock injectors with the hotcam. i reused my stock pushrods without remeasuring, but i really would recommend measuring like 95z said.
also, make sure you get it tuned. there is a crazy difference between that cam being tuned and untuned
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Old 08-31-2009, 04:46 PM   #4
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If my memory is correct, 95 and older didn't need to replace the pushrods as they were already hardened. The 96-97 pushrods should be replaced.
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Old 08-31-2009, 05:09 PM   #5
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I have seen several Hotcam setups that were close to leaning out or actually did, usually over 5000 RPM or so. It wouldn't hurt to get some 28# or 30# fuel injectors just to be safe. You can usually find used Ford SVOs pretty cheaply online, like $100-$150 for 30#ers.
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Old 08-31-2009, 05:36 PM   #6
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Or just get an adjustable FPR.

The 95's and 95 only were the ones with hardened pushrods, but its not needed on SA rocker arms anyway. Spring pressure on LT4 springs is only around 100 seated and 260 open. Not that much.
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Old 08-31-2009, 06:41 PM   #7
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ok thanks for all the info guys. So when you say measure are you talking about the pushrods themselves or using the adjustable pushrod tool?
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Old 08-31-2009, 08:18 PM   #8
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Pushrod checking tool. You really need a test spring or solid lifter lifter to check too, test spring being cheaper/easier.
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Old 09-01-2009, 12:27 AM   #9
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my only question with the test spring is this, how do you get the tip to wear off the marker on the valve stem with no pressure? i had to turn it over a few times just to get the wear mark to even be slightly visible, and that was with regular springs installed. you could always go with proforms tool as well. i really like mine anyway, really easy to use
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Old 09-01-2009, 11:07 AM   #10
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If you use the stuff your suppose to use (can't recall name, blue stuff lol) it should wear off much easier. As opposed to perm marker.
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Old 09-01-2009, 11:09 AM   #11
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You talking bout the marking paint for machine shops?
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Old 09-01-2009, 11:12 AM   #12
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Yes sir...del chem or something I believe.
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Old 09-01-2009, 12:40 PM   #13
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you dont need to change the pushrods, stockers will work just fine, but it would be nice to change them since you are there and prevent any thing wrong due to time of use and stuff, go with trickflows one piece chromemoly, they are tuff and cheap!
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Old 09-01-2009, 06:40 PM   #14
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Hey does that lt4 hot cam kit have a nice lope and give you a lot of hp and torque? I was thinkin of going that route too
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Old 09-01-2009, 06:57 PM   #15
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Quote:
Originally Posted by juggalotus View Post
Hey does that lt4 hot cam kit have a nice lope and give you a lot of hp and torque? I was thinkin of going that route too
actually the lt4 hot cam is a really mild cam, nice for the street it does pull up some hp, nice lope btw!
but as far as ive seen most of the people, swap for bigger cam, like the cc503 cam on stock heads should be the largest one, there is a seccion
**LT1 Camshaft/Valve Train Selection Guide**

this should help you out a lot,,,, and by the way I would save and get a LE pacage, if you really want to see big numbers
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