New B/B owner
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Melting Slicks
Joined: Feb 2004
Posts: 2,040
Likes: 105
From: State of Confusion!!!
2018 C2 of Year Winner
New B/B owner
Did the '71 LS-5 come with rectangular or oval port heads, and what are the advantages of either. Also, does anyone have factory cam specs?? Looking to add more 
factor, and wondering where I should start!!
Thanks
factor, and wondering where I should start!! Thanks
Melting Slicks
Joined: Dec 2005
Posts: 2,441
Likes: 0
LS-5 came with ovals, they're good for low and mid-range power. Rectangular port heads are best for high RPM HP. I don't know what the cam specs are other than they're pretty mild compared to todays street performance standards.
Drifting
Joined: Sep 2004
Posts: 1,959
Likes: 1
From: North Bend Ohio
At .050" lift the specs are 114 degrees on intake and 118 on exhaust. Lift was .461" and .480" respectively. Intake centerline was something like 116 degrees.
Go here for more numbers.
http://www.geocities.com/MotorCity/D...00/cmspec.html
BigBlockk
Later.....
Go here for more numbers.
http://www.geocities.com/MotorCity/D...00/cmspec.html
BigBlockk
Later.....
Pro
Joined: Jul 2002
Posts: 723
Likes: 0
From: North Port, FL
Originally Posted by DIP51
Did the '71 LS-5 come with rectangular or oval port heads, and what are the advantages of either. Also, does anyone have factory cam specs?? Looking to add more factor, and wondering where I should start!!
Thanks
factor, and wondering where I should start!! Thanks
