Jump to content

swapping cams


Recommended Posts

Is is worth swapping cams from an L20B smog head to an open chamber non-ported A87... The engine is a low compression L20B bored 40 over built for a turbo that will be running about 5 PSI. Will be running a 32/36 Weber (maybe) as well. Have everything about done except for the cam.

Any ideas?



Link to comment
  • Replies 5
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Get a caliper and measure a cam lobe from the highest point to the lowest on the back side. You should be able to turn the cam over so it's not on a lifter, say 9 or 3 o'clock and measure across it. An L20B will be 1.518" +- a thou or two.



If you do swap, swap everything, rockers, and lash pads to preserve geometry.

Link to comment
the l16 cam has less lift and duration inless it is a sss head. a a87 is not a sss head. now a stock l20b cam is the same as a sss cam


Not saying no. Just that I heard the lift was 0.418", the L20B is 0.413" Who would feel that?

Link to comment

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

By using this site, you agree to our Terms of Use.