Shimming Lifters- Unknown Cam

[gijoe985]

So, I am putting back a motor that I never ran. Doing some custom stuff. I've rebuilt 3 4g63 engines, but all close to stock before. I am putting a 2g head on a 6 bolt block. The head came with aftermarket cams. I have never been able to positively identify them. It also had same small washers for shims under the HLAs, but when all was said and done, I only had 12 on hand. I also want to replace the 2g HLAs with the 3g ones I have.

Question- Do I just replace the washers with 4 more of similar thickness, or is there an official measurement procedure to determine the proper shim thickness?

 

[Dsmkauai]

Those are probably Ffwd regrinds. I have extra shims if you need them. According to the guy they are special. Lol. http://www.ffwdconnection.com/4g63/dks2.html

 

[too_genecide]

You should measure the base circle of your cam lobes vs stock. That measurement Should tell you if shims are needed

 

[Dsmkauai]

Pm me if you need more I have and don't need.

 

[gijoe985]

Do you know what the stock cam measurement is? I'll go try to look it up, but figured I'd ask too.

I'd love to ID my cam. Maybe when I start taking some measurements I can figure it out.

 

[gijoe985]

Do you know the cam measurements off the top of your head?

 

[gijoe985]

Well, I measured mine and was not happy with some of the differences between the lobes. I saw .010 differences between some of the base circles and .010 differences on some of the lifts.

Trashed?