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  How much lash should I have with this cam?

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Author Topic:   How much lash should I have with this cam?
70coupe
Gearhead

Posts: 382
From: Toronto,Ontario,Canada
Registered: Aug 2000

posted 04-22-2003 05:56 PM     Click Here to See the Profile for 70coupe     Edit/Delete Message   Reply w/Quote
I have a Crane cam #521211 in my cleveland.
It says to set the lash hot at .026 so .028 cold should be close enough.
I have tried this and the car runs fine but I thought I might try playing with the lash a bit. I will be setting it cold this time so,I figure .002 with cover the difference from hot to cold. Would you try .024 or .030 cold! What do you guys think?

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351c 4v clsd heads
60'1.619
1/8 [email protected]
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steve'66
Gearhead

Posts: 7226
From: Sonoma,CA,USA
Registered: Mar 2000

posted 04-23-2003 12:19 AM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
Why not just warm it up and set the lash "hot"? I don't think you can guess what it'll be cold.

SteveW

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70coupe
Gearhead

Posts: 382
From: Toronto,Ontario,Canada
Registered: Aug 2000

posted 04-23-2003 01:16 AM     Click Here to See the Profile for 70coupe     Edit/Delete Message   Reply w/Quote
I think you missed my point.
I would like some information on how changing the lash will affect performance and how much I can change it either way?
I know with cast iron heads and a cast block its approximately .002 difference from hot to cold.

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Moneymaker
Administrator

Posts: 21725
From: Lyons, IL, USA
Registered: May 99

posted 04-23-2003 11:56 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
.002 won't make much of a difference.
.005 to .010 loose will pick up the bottom end.
.005 to .010 tight will pick up the top end.

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Alex Denysenko
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70coupe
Gearhead

Posts: 382
From: Toronto,Ontario,Canada
Registered: Aug 2000

posted 04-24-2003 12:36 AM     Click Here to See the Profile for 70coupe     Edit/Delete Message   Reply w/Quote
I will try .023 for starters and see how things go. Just wondered how far each way I could go.
Thanks

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