C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

head and cam?

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Old Oct 13, 2007 | 10:48 PM
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Default head and cam?

I'm planning to install a Lingenfelter 219 cam. I have a Super Ram, ZZ4 heads with Comp Pro Magnum 1.6 RRs. Is it a good idea to run the 1.6 RRs with the 219? Will the springs be OK? I'm planning to change injectors at the same time. I have the old yellow 24 lb. Acell injectors. Should I stay with 24 lbs? I'm also looking for an Accel base. It has the stock base now. Any suggestions? I would like to make this the last tear down.

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Old Oct 13, 2007 | 11:37 PM
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Originally Posted by Kool88vette
Is it a good idea to run the 1.6 RRs with the 219?

Will the springs be OK?

Should I stay with 24 lbs?
Sure. I believe that is what it was designed for.

Dunno. Have them checked for .560 lift.

Talk to the chip programmer
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Old Oct 14, 2007 | 12:12 AM
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I'm pretty sure the ZZ4 heads have LT4 valve springs. If that is true, you will need to change springs.
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Old Oct 14, 2007 | 04:27 AM
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LPE makes springs for the cam. http://www.lingenfelter.com/store/ln0018dblas.html

Last edited by Jonnymac; Oct 14, 2007 at 04:37 AM.
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Old Oct 14, 2007 | 01:07 PM
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I think the ZZ4 springs are good for .550 lift. Won't the 219 cam with 1.6 RRs give me .590 lift? Will it be too much for the springs. Maybe I need a less aggressive cam.
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Old Oct 14, 2007 | 01:26 PM
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I would go with the 219 and change the springs. Normally you wouldn't match cam to springs, you would match springs to cam.
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Old Oct 14, 2007 | 02:25 PM
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No dont change the cam choice, change the springs.

As for injector size, talk to the tuner first.
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Old Oct 14, 2007 | 04:37 PM
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OK I'll do some more research, thanks
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Old Oct 14, 2007 | 04:54 PM
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Originally Posted by Kool88vette
I think the ZZ4 springs are good for .550 lift. Won't the 219 cam with 1.6 RRs give me .590 lift? Will it be too much for the springs. Maybe I need a less aggressive cam.
The 219 will give you .562 with 1.6 RRs BTW, I got mine in this weekend. Don't forget the assembly lube...
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Old Oct 14, 2007 | 07:00 PM
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I don't mind changing the springs. It's not a big expense. I just thought that I might have too much lift and the car might not be streetable. I plan to bring it to shop here that will do the work and a dyno tune. I don't feel comfortable changing a cam. Never did one before. That's why I want to get everything right the first time.
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Old Oct 15, 2007 | 12:31 PM
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Originally Posted by Kool88vette
I just thought that I might have too much lift and the car might not be streetable.
If the heads will support it, go with the lift. Lift is free horsepower, will have very little to do with being streetable. My camshaft has 605/622 lift, and drives near stock-like.
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Old Oct 15, 2007 | 12:39 PM
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.560 lift isn't anything crazy at all.

higher lift only means you'll likely need to change the springs more often. with a 219 cam, if you're not at the track every day you'll probably go 40-50,000 mi. between changeouts.
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Old Oct 15, 2007 | 12:49 PM
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Originally Posted by Hot Rod 90
.560 lift isn't anything crazy at all.

higher lift only means you'll likely need to change the springs more often. with a 219 cam, if you're not at the track every day you'll probably go 40-50,000 mi. between changeouts.
It was enough to wipe out the HD springs that Trick Flow recommended on their heads which caused a valve to float and a piston to hit it.

I suggest you do it right the first time and get the LPE springs. They know.
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Old Oct 15, 2007 | 01:12 PM
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I'll get the Lingenfelter springs. They're only $68.95. Why take a chance.
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Old Oct 15, 2007 | 01:26 PM
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Originally Posted by Kool88vette
I'll get the Lingenfelter springs. They're only $68.95. Why take a chance.
For $70, you'd be an idiot to take the chance. Here they are with something they know will work. Didn't they give a 2 yr 24K warranty on their motors? They know you will beat the **** out of it too. A normal 3 yr 36K warranty on your car is safer than a 2 yr 24K warranty on an LPE motor. Nobody I know of buys such a motor and putz it around town.
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Old Oct 15, 2007 | 01:41 PM
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Originally Posted by aklim
It was enough to wipe out the HD springs that Trick Flow recommended on their heads which caused a valve to float and a piston to hit it.

I suggest you do it right the first time and get the LPE springs. They know.
what i meant to say is that once the (correct) springs are installed, a higher lift cam like the 219 will mean more maintenance in that the (correct) springs will need changed out about every 40-50,000 miles....which is no big deal.
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Old Oct 15, 2007 | 01:47 PM
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Originally Posted by Hot Rod 90
what i meant to say is that once the (correct) springs are installed, a higher lift cam like the 219 will mean more maintenance in that the (correct) springs will need changed out about every 40-50,000 miles....which is no big deal.
Oh, I see. Well, FYI, my TFS HD spring kit went about 30K before I discovered the break of one of the springs.. On the right side, every valve was loose also. Great QC.

Yes, about 40-50K is a good time to change springs. By then you would have gotten bored with the car and switched springs to accommodate a BIGGER cam.
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Old Oct 15, 2007 | 01:53 PM
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6 months ago I swore I would never change the cam. Too much money. The need to speed is greater than my urge to conserve. Hope I don't go broke.
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