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L67 vs LS1 Rocker Comparison

Click on the thumbnail to enlarge for full view.

LS1 vs L67 bottom.JPG (15413 bytes)
Photo 1

LS1 vs L67 side.JPG (18179 bytes)
Photo 3

rocker-arm1.JPG (11512 bytes)
Photo 5

Thinking about changing to different ratio rockers?  One of our customers was confident the LS1 rocker could be easily adapted to our application.  Sorry, it won't.  It would have been nice if it did.  The LS1 rocker is a bit smaller and lighter, which is an advantage at high RPM.  These photos tell the story.

Remember - the L67 is the 3800 Supercharged engine.  The LS1 is the 97+ Corvette/F body engine.

Photo 1.  The LS1 rocker is on the "bottom" nearest the camera, the L67 on "top", farther away.  Note the great difference in pushrod angle between the two.  The geometry is all wrong.

Photo 2.  Another photo showing the same.

Photo 3.  LS1 on left, L67 on right.

Photo 4.  LS1 on right, L67 on left.

Photo 5.  L67 in front, showing difference in pushrod angle.

Photo 6.  L67 on right, LS1 on left.

Click on the thumbnail to enlarge for full view.

LS1 vs L67 bottom2.JPG (19037 bytes)
Photo 2

LS1 vs L67.JPG (20846 bytes)
Photo 4

rocker-arm2.JPG (12748 bytes)
Photo 6

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