cam question
Thread Starter
Melting Slicks
Joined: Mar 2004
Posts: 2,141
Likes: 2
From: Pittsburgh Pa
cam question
i bought an lt1 short block off of ebay ealrier this year and it had a almost new cam in it. i know its not the original cam cause it has a fuel pump lobe on it. the numbers on the back say
586 FM13
216 00R
can anyone tell me what it is. i know is its a gm cam but have no specs. thanks
586 FM13
216 00R
can anyone tell me what it is. i know is its a gm cam but have no specs. thanks
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Originally Posted by pr0zac
i am guessing its a hot cam casue it seems to be the only gm cam that is made for an lt1/4 engine with a long dowel pin.
Thread Starter
Melting Slicks
Joined: Mar 2004
Posts: 2,141
Likes: 2
From: Pittsburgh Pa
how can you tell which gm cams are which. if this thing is a 847 i am swaping it out with my xfi280 today! i know the car that the engine was in had a supercharger on it cause it had a return hole in the oil pan.
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Burning Brakes
Joined: Nov 2004
Posts: 1,057
Likes: 0
From: Warren Ohio
Originally Posted by pr0zac
i bought an lt1 short block off of ebay ealrier this year and it had a almost new cam in it. i know its not the original cam cause it has a fuel pump lobe on it. the numbers on the back say
586 FM13
216 00R
can anyone tell me what it is. i know is its a gm cam but have no specs. thanks
586 FM13
216 00R
can anyone tell me what it is. i know is its a gm cam but have no specs. thanks
The 586 indicates that it is a GM Hot Cam. It may or may not have a stripe of any specific color. The rest of the numbers pertain to Lot ID, etc.
Specs are...
218/228 @ .050
.525/.525 lift with 1.6 ratio rockers.
112 * LSA
Thread Starter
Melting Slicks
Joined: Mar 2004
Posts: 2,141
Likes: 2
From: Pittsburgh Pa
i feel dumb now for asking that question cause i just realized why they call the 847's, 846's, etc. the 586 is the last three digits of the hotcam part number. i didn't even think to match them up. thanks for the help. i got to find an engine to put it in now.