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 Post Posted: Wed May 17, 2006 5:34 pm 
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Location: Douglasville Ga
Hey guys, I have another question, seems like I always do doesn't it. I thought I read on the other forum when you go to torque head bolts, you should use oil on the threads to ensure correct torque value, am I right about this or are you suppose to use lock tight. Also, what is the torque for stock 305 heads? Question 2 We about ready to replace the cam, what is the correct way to break it in. I thought I read bring the engine up to about 2,000-2,500 rpm and run it like that for about 15 min. It is going to be strictly for the strip until we get the other engine built. Thanks in advance for the help.

Chris


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 Post Posted: Wed May 17, 2006 7:22 pm 
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bowtie4542001 wrote:
Hey guys, I have another question, seems like I always do doesn't it. I thought I read on the other forum when you go to torque head bolts, you should use oil on the threads to ensure correct torque value, am I right about this or are you suppose to use lock tight. Also, what is the torque for stock 305 heads? Question 2 We about ready to replace the cam, what is the correct way to break it in. I thought I read bring the engine up to about 2,000-2,500 rpm and run it like that for about 15 min. It is going to be strictly for the strip until we get the other engine built. Thanks in advance for the help.

Chris





On a stock block where the threads in the block are exposed to the coolant I always use sillycone and for a SBC w/ stock bolts the torque is 75 ft. lbs and it is common for the short outside ones to be done at 70 to get the stratch out of them.

And if its s flat tappet cam you are correct in that you want to run it at approx. 2,000 rpm to keep oil splashing onto the cam/lifters for anywhere from 10 to 20 min. I have always gone with 10 min. and only 1 failure and it was on engine that sat for 1 1/2 yrs. after assembly before it was started.

Make sure your ignition timing is real close and have a timing light ready to use before you fire it up. And also if possible put a fan in front of the radiator to help keep it cool.


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 Post Posted: Wed May 17, 2006 9:31 pm 
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Location: Mason City, Iowa
would it work to drive it around in likw 2nd gear at 30 mph for 10-20 min so its over 2k?

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R/T: .194
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1/8: 9.803
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 Post Posted: Thu May 18, 2006 2:58 am 
 
Zach,

You do not want a load on the engine during cam break in.....or at least that is what I have been told.


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 Post Posted: Thu May 18, 2006 5:42 am 
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no load!! i use straight 30w oil for breakin. 2000 rpm 30 minutes. i did have one cam from crower they wanted broke in with 5-30 w oil. they did not give me a reason? it was a flatt tappet cam. at 2500rpm for 30 minutes. \:D/

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 Post Posted: Thu May 18, 2006 10:33 am 
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well how do i set up an engine to idle at 2500 RPM....thats 2k RPM above my idle speed...

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R/T: .194
60': 2.322
330: 6.379
1/8: 9.803
MPH: 71.37
1000: 12.781
1/4: 15.314
MPH: 88.79


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 Post Posted: Thu May 18, 2006 2:07 pm 
 
you have someone run the throttle while you adjust valve lash and the carb during break in if it is a brand new engine.....I will be corrected if wrong, but thats what I know about it.


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 Post Posted: Thu May 18, 2006 3:19 pm 
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ProStreet83C10 wrote:
well how do i set up an engine to idle at 2500 RPM....thats 2k RPM above my idle speed...


I'm not trying to be rude .. just tryin to get you to think a little .... how could you adjust your IDLE higher ?

Valve lash should be set real da** close before the engine is fired up. If its a hydraulic cam I would wait to set the final lash until after the cam / lifters are broke in and you are back down to curb idle


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 Post Posted: Thu May 18, 2006 4:47 pm 
 
DCarr wrote:
ProStreet83C10 wrote:
well how do i set up an engine to idle at 2500 RPM....thats 2k RPM above my idle speed...


I'm not trying to be rude .. just tryin to get you to think a little .... how could you adjust your IDLE higher ?

Valve lash should be set real da** close before the engine is fired up. If its a hydraulic cam I would wait to set the final lash until after the cam / lifters are broke in and you are back down to curb idle


Thank you Duane for the correction, I knew it needed to be done but wasn't thinking about the higher rpm's during cam break in.....


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 Post Posted: Thu May 18, 2006 4:48 pm 
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DCarr wrote:
ProStreet83C10 wrote:
well how do i set up an engine to idle at 2500 RPM....thats 2k RPM above my idle speed...


I'm not trying to be rude .. just tryin to get you to think a little .... how could you adjust your IDLE higher ?

Valve lash should be set real da** close before the engine is fired up. If its a hydraulic cam I would wait to set the final lash until after the cam / lifters are broke in and you are back down to curb idle


i know i could adjust the idle screw....but will it adjust that far up is what i mean....ive never had reason to see if it could be adjusted over 2k RPM

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Image

R/T: .194
60': 2.322
330: 6.379
1/8: 9.803
MPH: 71.37
1000: 12.781
1/4: 15.314
MPH: 88.79


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 Post Posted: Thu May 18, 2006 4:54 pm 
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yes, turn the idle screw up and let her run. check timing at this point just to refrence it and make adjustments as necassary. should be about 20-22 deg.

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ecbrc class champs 2008
chatanooga us champions, oct 14th, 2007.
ecbrc super stock 315 4bbl 2007 champs. high point boat overall 2007.
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 Post Posted: Thu May 18, 2006 9:27 pm 
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so an idle screw DOES allow you to adjust it to 2k RPM and higher?

_________________
Image

R/T: .194
60': 2.322
330: 6.379
1/8: 9.803
MPH: 71.37
1000: 12.781
1/4: 15.314
MPH: 88.79


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 Post Posted: Thu May 18, 2006 9:51 pm 
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yes. \:D/

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ecbrc class champs 2008
chatanooga us champions, oct 14th, 2007.
ecbrc super stock 315 4bbl 2007 champs. high point boat overall 2007.
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 Post Posted: Thu May 18, 2006 10:09 pm 
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Location: Mason City, Iowa
i aughta do that driving around town so that way if the cops pull me over for doing burn outs at the stop light i can tell them to make it stop.....most cops are car stupid so all id get is a fix it ticket and not an excessive accel. or wreckless/careless driving ticket

_________________
Image

R/T: .194
60': 2.322
330: 6.379
1/8: 9.803
MPH: 71.37
1000: 12.781
1/4: 15.314
MPH: 88.79


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 Post Posted: Thu May 18, 2006 10:13 pm 
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i tell them i cant hold my foot up any more. \:D/ \:D/ \:D/ it has been a long ride. \:D/

_________________
ecbrc high point boat overall 2008
ecbrc class champs 2008
chatanooga us champions, oct 14th, 2007.
ecbrc super stock 315 4bbl 2007 champs. high point boat overall 2007.
Image


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