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01-14-2010, 09:28 AM | #1 |
69 c/10 lwb fleetside
Join Date: Jul 2004
Location: saint joseph TN
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head id
does anyone have a link to a place that show the head casting marks like the double hump marks and etc. my brother bought a place and it has an old 56 chevy school bus on it with a motor im gonna buy and put in my truck trying to find a little info on it the suffix code is cjd which tells me CJD 71 350 Chevelle 270 hp L-48 TH 350 4-Brl Hyd Cam just wondering if i has the original heads for that motor or been switched i can get a pic of the head mark in a day or two
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69 lwb fleetside 67 swb fleetside (2) 72 lwb fleetside 50 swb no bed 65 impala ss 65 1 ton flatbed |
01-14-2010, 10:36 AM | #2 |
Between Trucks...
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Location: Los Angeles, CA.
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Re: head id
Pull a valve cover and get the casting number. Then go to www.mortec.com
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01-14-2010, 12:09 PM | #3 |
69 c/10 lwb fleetside
Join Date: Jul 2004
Location: saint joseph TN
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Re: head id
heres the pic
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01-14-2010, 01:21 PM | #4 |
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Location: Oregon City, OR
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Re: head id
I found this link when searching for my head information. I hope it helps.
http://www.chevytech.com/3c000.html Here is another: http://www.chevellestuff.com/qd/head...ng_by_year.htm And another..lol http://www.fastnuf.com/Headguide.html I cannot find your specific heads casting shape, take the valve cover off and look it up on mortec as was stated before.
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01-14-2010, 01:42 PM | #5 |
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Re: head id
Here is a picture of the markings
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01-18-2010, 06:04 PM | #6 |
69 c/10 lwb fleetside
Join Date: Jul 2004
Location: saint joseph TN
Posts: 195
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Re: head id
3973487 is the number when i got home and looked it up some of them has x on the end of them i dont know if it did or not i couldnt see it to good i didnt have a light but it list the same specs for them anyway does anyone know if its a good head maybe the hp rating
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69 lwb fleetside 67 swb fleetside (2) 72 lwb fleetside 50 swb no bed 65 impala ss 65 1 ton flatbed |
01-18-2010, 06:54 PM | #7 |
69 c/10 lwb fleetside
Join Date: Jul 2004
Location: saint joseph TN
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Re: head id
how come the casting marks they list aint like the casting marks on my head
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69 lwb fleetside 67 swb fleetside (2) 72 lwb fleetside 50 swb no bed 65 impala ss 65 1 ton flatbed |
01-18-2010, 07:04 PM | #8 |
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Re: head id
There are some variations to the casting marks so you can't alway count on them for positive ID.
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01-18-2010, 07:04 PM | #9 |
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Re: head id
If i remember correctly this heads were used on Gm performance engines such has cop motors, camaro's and possibly corvettes. They are a good head as mentioned, but just look into how much it's gunna cost to get any HP from them. I have a set of 041. I have a set of top knotch heads now, but I spend around 700- 750 on them getting the ready. I could have bought at the time a set of world product heads for around 850, without all the work I put into the 041's
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01-18-2010, 07:49 PM | #10 |
69 c/10 lwb fleetside
Join Date: Jul 2004
Location: saint joseph TN
Posts: 195
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Re: head id
i aint looking to build no drag motor just for my 69 pickup that i drive every once in a while but i would like to have a little more power than i do with my 350 thats in it now that came out of a 82 blazer i think 130-150 hp
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69 lwb fleetside 67 swb fleetside (2) 72 lwb fleetside 50 swb no bed 65 impala ss 65 1 ton flatbed |
01-19-2010, 09:07 AM | #11 |
69 c/10 lwb fleetside
Join Date: Jul 2004
Location: saint joseph TN
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Re: head id
where is the block number located? if i remember right i think they are around the distributer somewhere but cant remember. can i see it with the motor still in the bus or have to wait untill i pull it
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69 lwb fleetside 67 swb fleetside (2) 72 lwb fleetside 50 swb no bed 65 impala ss 65 1 ton flatbed |
01-19-2010, 09:15 AM | #12 |
69 c/10 lwb fleetside
Join Date: Jul 2004
Location: saint joseph TN
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Re: head id
is this motor likely to be a 2 or 4 bolt main
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