Steve Shauger's "Reliving My Youth" 1969 Z/28

[Steve Shauger]

Originally Posted by olredalert

----Will it be built to make the same #'s? Any Dyno #'s, Steve???....Bill S

Everything is identical, just corrected 5 issues that the previous rebuilder caused or missed.

[Lynn]

Very cool Steve.
Glad to see you got the best help available.

I think I am going to go back with the original engine in my Z as well.

Will wait until I get the 70 LT-1 done.

Fun getting the next generation involved.

[Mr70]

Amazing.

[Lynn]

Steve:

What camshaft are you running?
If not a roller, are you using EDM lifters?
I have two NOS Comp cams #12-107-3 with lifter kits purchased BEFORE CC started having cam lobe issues. However, the lifters are not EDM. I am hesitant to use one of them in my 302 build.

Does anyone know if I can purchase a good, high quality set of EDM lifters that will work fine with the CC #12-107-3 camshaft? Jerry M swears by this cam (at least the ones made before 2009), and uses it in his D/Stock 67 Z/28, which runs 10.40. Pretty hard to argue with those results, especially considering the heads aren't ported. But he does run headers.

[napa68]

Originally Posted by Lynn

Steve:

What camshaft are you running?
If not a roller, are you using EDM lifters?
I have two NOS Comp cams #12-107-3 with lifter kits purchased BEFORE CC started having cam lobe issues. However, the lifters are not EDM. I am hesitant to use one of them in my 302 build.

Does anyone know if I can purchase a good, high quality set of EDM lifters that will work fine with the CC #12-107-3 camshaft? Jerry M swears by this cam (at least the ones made before 2009), and uses it in his D/Stock 67 Z/28, which runs 10.40. Pretty hard to argue with those results, especially considering the heads aren't ported. But he does run headers.

My apologies for derailing the thread here. FWIW Lynn, this is the cam and lifter set I have been using in recent solid lifter builds. A basic copy of the LT1 cam with EDM lifters. I just ordered another one for an upcoming engine build I have to complete. Great power, no drama, no failures.
https://www.howardscams.com/mechanic...00-2800-6600-0

[Salvatore]

Well done Steve. looks great. Who did you use this time for the rebuild?

[Steve Shauger]

Originally Posted by Salvatore

Well done Steve. looks great. Who did you use this time for the rebuild?

Hampton Engine. Just chipping away on installation. Next shifter and driveshaft. No rush, don't plan on running engine until spring.

[Steve Shauger]

I just installed the headers, radiator hoses & filled, distributor and oil primed the engine (since it sat for 5 months). Upon startup the rear on carb stuck and I shut it down. I was inspecting for leaks and found the fuel pump weep hole had fuel leaking out. Installed new pump and tapped on the carb rear float housing and she started up and ran at 1700 rpm for 10 minutes.

The rub is the engine has about 11 in of vacuum which make it difficult to tune the idle circuit, and the power brakes are not operating correctly. This is a pretty stout cam but it was dialed in before the rebuild with no issues. I am going to play with initial advance and may loosen the lash. It does sounds more radical than before so think the lifter lash may be a little tight. The car performs well at RPMs above 1500. Low oil pressure and vibration has been corrected. I will keep you posted

[cruiserofland]

Originally Posted by Steve Shauger

I just installed the headers, radiator hoses & filled, distributor and oil primed the engine (since it sat for 5 months). Upon startup the rear on carb stuck and I shut it down. I was inspecting for leaks and found the fuel pump weep hole had fuel leaking out. Installed new pump and tapped on the carb rear float housing and she started up and ran at 1700 rpm for 10 minutes.

The rub is the engine has about 11 in of vacuum which make it difficult to tune the idle circuit, and the power brakes are not operating correctly. This is a pretty stout cam but it was dialed in before the rebuild with no issues. I am going to play with initial advance and may loosen the lash. It does sounds more radical than before so think the lifter lash may be a little tight. The car performs well at RPMs above 1500. Low oil pressure and vibration has been corrected. I will keep you posted

Steve, might I ask at what RPM is it making 11 inches? My previous owner had the idle at 750, and when I dialed up to 950 hot it helped a lot with stable idle and the power brakes (though I have the mild 30/30 cam and .030”/.030” lash). I also did not make enough vacuum when I tried .026”/.026”.

[Steve Shauger]

Originally Posted by cruiserofland

Steve, might I ask at what RPM is it making 11 inches? My previous owner had the idle at 750, and when I dialed up to 950 hot it helped a lot with stable idle and the power brakes (though I have the mild 30/30 cam and .030”/.030” lash). I also did not make enough vacuum when I tried .026”/.026”.

RPM is 1100. I connected manifold vacuum to vacuum advance and idle is now stable. This is not fixing the root cause, but car runs perfect now. I'm going to verify the PCV is not the low vacuum source. If all else fails I will increase the valve lash which is now 16 &18 to 20 & 22.