problem is the lifters are no longer made correctly. Not hardened right, nor ground well. There was a shop regrinding lifters but he stopped last ? year.
CK5
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Cylinder heads
- Thread starter Blazer Ralph
- Start date
My neighbor has yet to have problem with flat tappet lifters but he breaks them in with softer springs then installs the final springs.
I don't know if he started doing this because of the quality or he's always done it this way.
He is the oldest machine shop in my town and 3rd generation family business, all generations have been racers and they still do a lot of these engines.
That’s one of the old methods. Unfortunately doesn’t do anything for shoddy machine work on the lifters
Wasn't the breaking I was talking about lol.
I mean after all that, the normal daily driving. Flat tappets are failing because the oils now aren't made for them.
I agree roller is best. Just pointing out why flat tappets are failing.
I could try and find it, but there are lots of things out there about it if you search. I ran across it all around the time I went LS.
He goes into that in the videos
Is this block set up for roller lifters, or are you looking at the retrofit setup? If you post up what heads are with it, someone here can probably tell you what's needed to get a nice roller profile in it.
So I ended up having the machine shop break in the engine for me, I took all the parts to them so they can break it in on their stand. I’m hoping all goes well. I’ll let you all know how it turns out!
Just an update! Picked up my engine today. It was a successful break in with the flat tappet cam and lifters.
Today is the day! Going to drop my engine back in truck! I hope I labeled all the vacuum lines good so I can get it running lol. I’ll let you all know how it goes. I also purchased some headman headers and a mini starter. Will be installing those when I get them, going with the stock stuff for now
Got engine installed today, couldn’t install the original exhaust because the oil dipstick they installed interferes, gotta wait for headers to come in and hope they fit. I tried pulling the oil dipstick tube out but couldn’t and don’t know why
So I messed up and I broke a bolt into my torque converter! I’m just gonna buy a new one since I was doing a little research and seems like I should get something with a higher stall with my new engine anyway. I was thinking of a 200-2300 stall what do you all think?
2000-2300 I meant
What is the advertised rpm range of your cam? Pick a converter close to the begining of power band. Higher stall will create more fluid heat, plan on a bigger trans cooler.
The dip stick tube is a press fit.
It should be rotated 180° from it's current position.
The dip stick tube is a press fit.
It should be rotated 180° from it's current position.
Call greg he is a member here and owns his own trans shop and makes converters in house .
Rpm idle 5,500
I also tried pulling out dipstick tube but it’s really in there and I’m afraid of breaking it
