|
340 solid flat tappet cam
#2488299
04/26/18 03:16 PM
04/26/18 03:16 PM
|
Joined: Jan 2004
Posts: 8,233 fredericksburg,va
cudaman1969
OP
master
|
OP
master
Joined: Jan 2004
Posts: 8,233
fredericksburg,va
|
How much does the lash change from hot to cold, if any? Iron block and heads.
Last edited by cudaman1969; 04/26/18 03:16 PM.
|
|
|
Re: 340 solid flat tappet cam
[Re: cudaman1969]
#2488383
04/26/18 06:02 PM
04/26/18 06:02 PM
|
Joined: Aug 2003
Posts: 43,099 Bend,OR USA
Cab_Burge
I Win
|
I Win
Joined: Aug 2003
Posts: 43,099
Bend,OR USA
|
About .002 looser with iron heads and block is what I count on On your deal check it out for yourself on your parts, set them cold and then go drive the car enough to get the oil temps up to at or above 150F and pull the easiest valve cover off and check one set of rockers quickly the same way you set them Not all motors do the exact same thing under the same conditions, iron rocker compared to aluminum changes things also
Last edited by Cab_Burge; 04/26/18 06:03 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
|
|
|
Re: 340 solid flat tappet cam
[Re: cudaman1969]
#2488480
04/26/18 10:35 PM
04/26/18 10:35 PM
|
crabman173
Unregistered
|
crabman173
Unregistered
|
We see this question month after month here There is no way to set lash properly other than setting it Hot Period -- all the "predictions" of what to allow with this and that combo is BS or at best is based on doing it both ways and comparing which is just crazy do it HOT and in your situation it is the only way to even get close You will find that is it almost impossible to set lash that close any other way and for most folks they will be lucky to get it +- a few thou Set it as hot as you can get it---also on those kinds of cams the "low" spot may not be in the location you assume IE inverse radius designs etc--If lash specs call for that close you need to set hot then roll it over on every one a full lobe rotation and see where the base actually is while you have feeler in place Truth is it will run great no matter what you do they just have to give some kind of spec and they are shooting for you getting the most out of the lobe Your burn out is probably way more important as well as about 7 other things to getting a win light
|
|
|
Re: 340 solid flat tappet cam
[Re: cudaman1969]
#2488587
04/27/18 08:43 AM
04/27/18 08:43 AM
|
crabman173
Unregistered
|
crabman173
Unregistered
|
Don't over think it She will run great! Good Luck!
We do a bunch of 22R Toyota engines--they have an odd inverse radius cam lobe profile and setting them requires just keeping the blade in place and rolling it over and over so i really learned this trick doing "terrorist trucks" LOL
|
|
|
|
|
|