02 LS6 CNC Heads and 02 LS6 Cam buildup...thoughts wanted
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For any of those interested, here are the parts from SDPC:
1. 7.350 Length .050 Short LS1 Manley Pushrods
$5.75 $92.00
Part Number MAN25751
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2. LS6 CNC Ported Assembled Aluminum Cylinder Heads
$985.00 $1,970.00
Part Number 88958622
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3. LS6 2002 Z06, 204/218 Duration @ 0.050. Hydraulic Roller Camshaft
$185.00 $185.00
Part Number 12565308
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Shipping and Handling: $24.75
Grand Total: $2,271.75
This gives me $1,250 left in my budget. I still need get the following --
1- head bolts (still can't figure out the GM part # prob, 98-01 & 02-04 head gaskets have diff part #s)
2- gaskets
3- plugs & wires
Still piddling around with a few other things. Hopefully I'll be ready to install in early Jan.
-N
1. 7.350 Length .050 Short LS1 Manley Pushrods
$5.75 $92.00
Part Number MAN25751
-------------------------------------------------
2. LS6 CNC Ported Assembled Aluminum Cylinder Heads
$985.00 $1,970.00
Part Number 88958622
-------------------------------------------------
3. LS6 2002 Z06, 204/218 Duration @ 0.050. Hydraulic Roller Camshaft
$185.00 $185.00
Part Number 12565308
-------------------------------------------------
Shipping and Handling: $24.75
Grand Total: $2,271.75
This gives me $1,250 left in my budget. I still need get the following --
1- head bolts (still can't figure out the GM part # prob, 98-01 & 02-04 head gaskets have diff part #s)
2- gaskets
3- plugs & wires
Still piddling around with a few other things. Hopefully I'll be ready to install in early Jan.
-N
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When bolting on a set of stock 02 LS6 heads/cam onto an 02 LS1 motor, is tuning necessary for the small compression change?
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</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Y2K2LS1:
<strong>When bolting on a set of stock 02 LS6 heads/cam onto an 02 LS1 motor, is tuning necessary for the small compression change?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Will it throw a code and not idle right with the stock tuning? My guess is no, it will run just fine with the stock tuning. However, at the least I will need to raise the rev limiter, and tunning will most definately help take full advantage of everything.
-N
<strong>When bolting on a set of stock 02 LS6 heads/cam onto an 02 LS1 motor, is tuning necessary for the small compression change?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Will it throw a code and not idle right with the stock tuning? My guess is no, it will run just fine with the stock tuning. However, at the least I will need to raise the rev limiter, and tunning will most definately help take full advantage of everything.
-N
#24
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I have a similar project going and think you will miss out on ~20hp by going with the stock cam. You could even do a GM Hotcam and use stock valve springs. The stock 02 Z cam is 204/218-550/117.5. There are lots of very mild cams that will give you more as long as you are "in there"
<small>[ December 20, 2002, 08:11 AM: Message edited by: See5 ]</small>
<small>[ December 20, 2002, 08:11 AM: Message edited by: See5 ]</small>
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</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by See5:
<strong>I have a similar project going and think you will miss out on ~20hp by going with the stock cam. You could even do a GM Hotcam and use stock valve springs. The stock 02 Z cam is 204/218-550/117.5. There are lots of very mild cams that will give you more as long as you are "in there"</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">What cam or cams are you considering? I have not seen good selection of cams with a max lift under .56. The assembled heads max is 5.61. You may have noticed that flow drops after .525 on the assembled cnc ls6 heads.
Thanks
<strong>I have a similar project going and think you will miss out on ~20hp by going with the stock cam. You could even do a GM Hotcam and use stock valve springs. The stock 02 Z cam is 204/218-550/117.5. There are lots of very mild cams that will give you more as long as you are "in there"</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">What cam or cams are you considering? I have not seen good selection of cams with a max lift under .56. The assembled heads max is 5.61. You may have noticed that flow drops after .525 on the assembled cnc ls6 heads.
Thanks
#26
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I would swap the springs and use the TR / Patrick G "old man cam". Very emssions friendly. About as much under the curve lift as a 230 but idles like stock and will pass emissions.
Its specs are 214/220, .600/.527, 115 LSA, -2 degrees ground in.
Should be 400+ RWHP
Its specs are 214/220, .600/.527, 115 LSA, -2 degrees ground in.
Should be 400+ RWHP