I was stripping down the aluminum block today. Found a broken lifter bore so it's scrap. But, in the process, when I pulled the cam, I found an Isky Z-50E4. I looked it up and it looks like it's 256* advertised duration and .425 lift. I plan for the car to be a street cruiser, not a racer, with occasional trips at freeway speeds. Is this cam a good performer for that purpose or should I spend the extra cash for the Erson 270 or something else? Final drive ratio will be 3.23 with an A904 pushbutton slushbox behind the engine.

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David Kight
'62 Valiant Signet, White
'98 Dodge Dakota
'06 Jeep Liberty

Growing older is unavoidable but growing up is strictly optional.

256° advertised duration, 0.425" lift sounds like a durn-near-perfect cam for the usage you intend. I'd use it and spend what would've been the cam cash on something else!

Sorry to hear about your busted aluminum block

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

Thanks Dan. I probably wasn't going to use it anyway with the corrosion at the top. I was stripping it down to send to someone else who had indicated interest but I doubt that he'll want it now.

It's always nice to find little treasure where you don't expect them, this cam is one of those. The engine had obviously been rebuilt shortly before it was pulled from the car. The cam shows very little wear and the lifters still have the slightly domed surface on the bottom. In addition to the busted lifter bore, the engine had 2 spun rod bearings.

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David Kight
'62 Valiant Signet, White
'98 Dodge Dakota
'06 Jeep Liberty

Growing older is unavoidable but growing up is strictly optional.

I know you know this so im not being a smart ass but make sure you match each lifter with the cam lobe. Thanks Ron Parker












It Aint Over Until I Win

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David Kight
'62 Valiant Signet, White
'98 Dodge Dakota
'06 Jeep Liberty

Growing older is unavoidable but growing up is strictly optional.

Maybe Dan can jump in here but I have always used the same lifter that the cam was broke in with. I match the used cam with the same lobe used lifter. Just A racing tip i have heard may not be valid. Thanks Ron Parker










It Aint Over Until I Win

Trouble is, I wasn't expecting to find anything other than a stock cam so I didn't preserve the position of the lifters. It might be ideal to do that but I've used new lifters on a used cam many times with no effect.

**make that "no ill effect."**

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David Kight
'62 Valiant Signet, White
'98 Dodge Dakota
'06 Jeep Liberty

Growing older is unavoidable but growing up is strictly optional.

Ok you go dude Thanks Ron Parker













It Aint Over Until I Win

I always use the lobe matched lifter method and I haven't seen any sweeped lobe in years. Other fellows with cam/lobe issues have used new lifters in a broken in cam... I guess is a matter of luck... and if the cam is a new grinf on a new shaft you'd be on the safe side...

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Juan Ignacio Caino

Please use e-mail button istead of PM'ing. I do log in sometimes but I'll be answering quicker thru e-mail.

The way I always heard the rule, it was to keep used lifters on their same lobe. New lifters are OK, and used lifters on their original lobe are OK, the "no-no" was used lifters on lobes other than their original.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

I've heard of "no-no-no" cases in replacing broken in lifters, but only if the cam grinder is so $#!+ that he uses old shafts and poorly fills them and regrinds. Bad craftmanship is bad craftmanship... eh? I thought that once you break in the cam it wasn't OK to replace the lifters....

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Juan Ignacio Caino

Please use e-mail button istead of PM'ing. I do log in sometimes but I'll be answering quicker thru e-mail.

Fyi I bought this cam in the summer and put it in my newly rebuild engine a few weeks ago. The cam was off by 14 degrees, one whole tooth on two separate timing sets. Make sure you degree your cam when you put it in a new engine.

It may have just been mine but never trust the grinder... Just my 2 cents.

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Arizona Duster in Canada

That's the rule I've always followed. There've been several times when I found in necessary to replace a single hydraulic lifter because it had collapsed. Now, if there is severe wear on the cam lobe, all bets are off because lobe angle will be wrong and the lobe will dig into the lifter surface. In this case the grinding marks are still visible on the lobe of the cam. My guess is that the engine failed shortly after installation. At any rate, I'm going to give it a try and I will be watching it closely.

73Northern, I will definitely degree the cam; that's a given. Thanks.

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David Kight
'62 Valiant Signet, White
'98 Dodge Dakota
'06 Jeep Liberty

Growing older is unavoidable but growing up is strictly optional.

Definately keep in mind that new oils will junk a new cam quick. Use GM EOS in there for break in.

The zinc has been removed or reduced in most car oils. They are removing it in diesel stuff too like Rotella.

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'72 Duster 198 stock cam, 3:23's Hookers on jack stands for 8 years in the driveway
'79 Maxivan 360 Offy Qjet Comp RV cam/rusting in the driveway.
93 D350 160HP Cummins Auto Dually Clubcab needs a injector pump
2005 Golden Couch Buick

GM EOS? What's that?

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David Kight
'62 Valiant Signet, White
'98 Dodge Dakota
'06 Jeep Liberty

Growing older is unavoidable but growing up is strictly optional.