LG G5x2 cam owners what pushrods
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09-04-2011, 12:44 PM
#11
The amount if misinformation being thrown around this section these days is enough to give me an f'ing migraine headache.
Let me explain something to the rookies. And I'm gonna bold it, so hopefully I can get my point across.....
An aftermarket camshaft will have anywhere from .030-.060 shaved off the base circle to allow large lobes to pass cam bearings. This will create a need for more travel, therefor calling for a longer pushrod. No how, no way, will an XE-R camshaft of this size have proper valvetrain geometry with a stock length pushrod. The internet mechanics are wrong.
That being said, all the LG cams I've installed called for a 7.450 pushrod with a stock unmilled GM gasting.
Let me explain something to the rookies. And I'm gonna bold it, so hopefully I can get my point across.....
An aftermarket camshaft will have anywhere from .030-.060 shaved off the base circle to allow large lobes to pass cam bearings. This will create a need for more travel, therefor calling for a longer pushrod. No how, no way, will an XE-R camshaft of this size have proper valvetrain geometry with a stock length pushrod. The internet mechanics are wrong.
That being said, all the LG cams I've installed called for a 7.450 pushrod with a stock unmilled GM gasting.
09-04-2011, 02:35 PM
#12
The amount if misinformation being thrown around this section these days is enough to give me an f'ing migraine headache.
Let me explain something to the rookies. And I'm gonna bold it, so hopefully I can get my point across.....
An aftermarket camshaft will have anywhere from .030-.060 shaved off the base circle to allow large lobes to pass cam bearings. This will create a need for more travel, therefor calling for a longer pushrod. No how, no way, will an XE-R camshaft of this size have proper valvetrain geometry with a stock length pushrod. The internet mechanics are wrong.
That being said, all the LG cams I've installed called for a 7.450 pushrod with a stock unmilled GM gasting.
Let me explain something to the rookies. And I'm gonna bold it, so hopefully I can get my point across.....
An aftermarket camshaft will have anywhere from .030-.060 shaved off the base circle to allow large lobes to pass cam bearings. This will create a need for more travel, therefor calling for a longer pushrod. No how, no way, will an XE-R camshaft of this size have proper valvetrain geometry with a stock length pushrod. The internet mechanics are wrong.
That being said, all the LG cams I've installed called for a 7.450 pushrod with a stock unmilled GM gasting.
09-04-2011, 07:20 PM
#13
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The amount if misinformation being thrown around this section these days is enough to give me an f'ing migraine headache.
Let me explain something to the rookies. And I'm gonna bold it, so hopefully I can get my point across.....
An aftermarket camshaft will have anywhere from .030-.060 shaved off the base circle to allow large lobes to pass cam bearings. This will create a need for more travel, therefor calling for a longer pushrod. No how, no way, will an XE-R camshaft of this size have proper valvetrain geometry with a stock length pushrod. The internet mechanics are wrong.
That being said, all the LG cams I've installed called for a 7.450 pushrod with a stock unmilled GM gasting.
Let me explain something to the rookies. And I'm gonna bold it, so hopefully I can get my point across.....
An aftermarket camshaft will have anywhere from .030-.060 shaved off the base circle to allow large lobes to pass cam bearings. This will create a need for more travel, therefor calling for a longer pushrod. No how, no way, will an XE-R camshaft of this size have proper valvetrain geometry with a stock length pushrod. The internet mechanics are wrong.
That being said, all the LG cams I've installed called for a 7.450 pushrod with a stock unmilled GM gasting.
09-05-2011, 03:54 AM
#14
TECH Senior Member
The bottom line, Damian is correct, internet is not the place to chose you p-rods.
That should be done under your hood in your engine bay. MEASURE
There is no sure way around it.
When you go to the bathroom and ****, first you have to grab your Shlong. Failing to do so can be most of the times MESSY. The same applies to push rods, MEASURE for correct p-rod length and lifter pre-load.
(Now repeat the above until set in your conscious)
09-05-2011, 07:49 AM
#15
Alrighty Predator im a little confused....and granted im not mechanic BY ANY MEANS, the most complex thing I ever did was install my converter w/ a buddy in which he did 75% of the work and it was a friggin nightmare for me...I just don't have the patience but Damian said on non milled factory head those were the pushrods he used w/ this cam so what would make any measurement different from the next on the same motor...Not being an *** i honestly just don't understand
09-05-2011, 05:41 PM
#17
TECH Senior Member
Alrighty Predator im a little confused....and granted im not mechanic BY ANY MEANS, the most complex thing I ever did was install my converter w/ a buddy in which he did 75% of the work and it was a friggin nightmare for me...I just don't have the patience but Damian said on non milled factory head those were the pushrods he used w/ this cam so what would make any measurement different from the next on the same motor...Not being an *** i honestly just don't understand
You confidently reply .xxx
09-06-2011, 12:10 AM
#19
Alrighty Predator im a little confused....and granted im not mechanic BY ANY MEANS, the most complex thing I ever did was install my converter w/ a buddy in which he did 75% of the work and it was a friggin nightmare for me...I just don't have the patience but Damian said on non milled factory head those were the pushrods he used w/ this cam so what would make any measurement different from the next on the same motor...Not being an *** i honestly just don't understand
I've probably installed 150-200 XE-R lobe camshafts since the XE-R lobe came out. I'd like to think at this point I've got a pretty good feel for what pushrod they call for on a stock unmilled head, with a stock LS1/6 lifter which is typically a 7.450. On a rare occasion they'll want a 7.425.
I guess for me it's safe to assume pushrod length now, since I'm typically right on the money and regardless I measure anyway. If I've ordered the wrong length, I just get on the phone and order the right one. For the DIY'er, pushrods are the absolute last thing that need to be ordered. Once the cam swap is buttoned up, length needs to be measured. Then you can order your correct length pushrod.
But I'll say it one more time. Never, will an XE-R cam have good geometry with a 7.4 pushrod. Just because "it'll be fine" doesn't make it right. There's a lot of things that an engine will let you get away with temporarily, but you'll pay for it in the long wrong.