How do I read the info engraved on a cam?
How do I read the info engraved on a cam? I purchased a cam second hand, and it didn't come with a cam card. I would like to verify that it is what was advertised. Is there a way to find the info from the numbers that are stamped, and engraved on the cam?
Stamped 2870 D
Engraved
3732R/3732R
HR 14+4
CC.
Y1438
Thanks for any help.
Stamped 2870 D
Engraved
3732R/3732R
HR 14+4
CC.
Y1438
Thanks for any help.
Originally Posted by Greg_E
I purchased a cam second hand, and it didn't come with a cam card. I would like to verify that it is what was advertised. Is there a way to find the info from the numbers that are stamped, and engraved on the cam?
Stamped 2870 D
Engraved
3732R/3732R
HR 14+4
CC.
Y1438
Thanks for any help.
Stamped 2870 D
Engraved
3732R/3732R
HR 14+4
CC.
Y1438
Thanks for any help.
3732R/3732R means it is a 244/244 .612/.612
HR 14+4 means most likely it is on a 114lsa and has 4* of advance ground in
Y1438 is the serial number, if you call Comp with these numbers, they can tell you EVERYTHING about the cam.
Shawn
Last edited by SPANKY LS1; Nov 7, 2004 at 06:30 PM.
Is it a Comp cam? If so, 3732 is 244* duration. If all else fails, call Comp tomorrow....If the numbers on the end of the cam are 3722 instead of 3732, then you're ok. 3722 is indeed a 224 .581 lobe. See the chart below 
Shawn
Shawn Last edited by SPANKY LS1; Nov 7, 2004 at 06:31 PM.
I can only assume that the CC on the cam means Comp Cams. I don't know who grinds the cams for MTI. I checked the cam again to make sure I didn't misread it. It is 3732R. I'm hoping that because it is a custom grind for MTI, the lobe size is coded (hence the R on the end of the number), to prevent others fom copying their design. I'll call Comp tomorrow.
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On The Tree
Joined: Oct 2004
Posts: 113
Likes: 0
Originally Posted by SPANKY LS1
If you were expecting it to be a 224/224, its a good thing you checked before you installed it and found out later it was too big.
Shawn
Shawn
whta is the measure to consider a cam as a big cam and another as small cam ? ive been trying to get an answer for this question since a long time but i couldnt ?
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Verdad Gallardo Size is relative. If he was expecting a 224/224 cam that drove and idled well, a 244/244 would be considered HUGE. On the other hand. if he wanted a radical idle and maximum hp, he may consider a 244/244 too small. "Big" cams are becoming more and more popular, and generally speaking, anything over 230* duration is/was considered too big for a 346 (I remember ~2 years ago, when TR came out with the 230/224 it was considered HUGE, now the TreX practically dwarfs it). There is no right answer to the "how big is too big" question, it depends on your desired results, level of streetability and driveability, etc. A TreX may be tame to one person, and another person may consider the 224/224 too big. I guess that, through my rambling response, what I'm trying to say is there is no certain point at which a cam is too big. Depends on goals, setup, etc. hope this makes sense, Shawn
On The Tree
Joined: Oct 2004
Posts: 113
Likes: 0
Originally Posted by SPANKY LS1
Size is relative. If he was expecting a 224/224 cam that drove and idled well, a 244/244 would be considered HUGE. On the other hand. if he wanted a radical idle and maximum hp, he may consider a 244/244 too small. "Big" cams are becoming more and more popular, and generally speaking, anything over 230* duration is/was considered too big for a 346 (I remember ~2 years ago, when TR came out with the 230/224 it was considered HUGE, now the TreX practically dwarfs it). There is no right answer to the "how big is too big" question, it depends on your desired results, level of streetability and driveability, etc. A TreX may be tame to one person, and another person may consider the 224/224 too big. I guess that, through my rambling response, what I'm trying to say is there is no certain point at which a cam is too big. Depends on goals, setup, etc. hope this makes sense, Shawn
what i mean .. there is some cams that have reached the 240 duration wich is too long for the valve to be opended .. the result will be more air in or more exhaust out can the valve passage area (Valve hole) afford the the too much in and the too much out ... IT WOULD be crowdy which gana affect the performance .. what is the limit of the cam that after it u have to change or manipolate the heads ? please let me know ur opinion
