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Old 08-13-2004, 07:41 PM
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Which Cam - Zz430?

I am trying to find out which cam to use. I am biulding a zz430 replica which puts out 430 hp with hot cam. Scoggin Dickey has a zz430 with a different cam and air gap intake that puts out 465hp. Does anyone know what cam they use or the specs on that cam? Thanks

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Old 08-13-2004, 08:51 PM
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GM part number 12370847

Hydraulic roller, I = 234 at .539 lift and E = 242 at .558 lift.
That's with 1.5 ratio rockers. The centerline is 112 degrees.

" For OFF ROAD use only"



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Old 08-13-2004, 09:12 PM
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the ZZ430 starts life as a ZZ4 short block and it use's the hot cam for the LT1 & 4# 24502586,218/228 dur..525/.525 lift,1.6 rockers,112* C/L,fast burn heads#12464298,alum. 210 cc int.runner 62 cc combustion,2.00 int. 1.55 ex. angled plug

the 12370847 cam is off road use only and has an eccentric for mechanical fuel pump.this info is bogus.

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Old 08-13-2004, 09:17 PM
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Quote:
Originally posted by GoneNova/406
the ZZ430 starts life as a ZZ4 short block and it use's the hot cam for the LT1 & 4# 24502586,218/228 dur..525/.525 lift,1.6 rockers,112* C/L,fast burn heads#12464298,alum. 210 cc int.runner 62 cc combustion,2.00 int. 1.55 ex. angled plug

the 12370847 cam is off road use only and has an eccentric for mechanical fuel pump.this info is bogus.

But the SD ZZ465 ..........not the 430........ uses the #12370847 cam............which is what he asked. I have a ZZ430.....the one in the photo.

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Old 08-13-2004, 10:46 PM
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when you're right you're right.my mistake but realistically wouldn't that be a zz465?i looked a little to quick and saw zz430.again my mistake.
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Old 08-14-2004, 09:36 AM
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It's ALL cool here.........

I would not go for the other intake that SD uses on the ZZ465........AirGaps give away some bottom end power for the increased top end power. You cannot use the 430 horses I have on the street.........

In my 32 at 2240 lbs, with a Turbo 400 and a 9 inch Ford out back........430 HP is plenty enough for most any street car you will meet on the street (and a LOT of so-called race cars)

The #12370847 would sound better. The Hot Cam is mild in a ZZ430, almost smooth. But works out good in my Roadster. Good street manners and decent fuel mileage.





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Old 08-14-2004, 05:53 PM
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Duece, right nice looking engine you got there

I see your using the Zip unit, how you like it so far? Mine is installed and running (not on street yet). I found that the belt adjustment is very limited on it, only about 3/8" inch differance in length is allowed on both the alt and comp. I have a short adjuster bar from Parr that I have not installed yet that I hope will improve that. It is the one with a heim joint on each end.

Vince
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Old 08-14-2004, 06:18 PM
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I have used the ZIP pump for almost 20 years. I had a iron one and then bought a aluminum one when they came out. I have no adjustment issues............I have no A/C ....... so I have lots of adjustment. On a coupe I had, I used a adjustment bar from Street and Performance. It had two joints on it....1 LH and 1 RH......you just twisted it until the adjustment suited you and locked the lock nuts.

The only issue I have with the ZIP is that you must purge the uppermost cavity or the engine gets air and wants to warm up. Once you get past that...........it's all the way. I used a 18 inch clutch fan on the 32. 7 blades and lots of deflection.

Hows your project coming ??


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Old 12-17-2006, 11:10 AM
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385 fast burn crate engine vs zz465

Hello guys new here found a new home. I have a 385 fast burn crate engine and was doing a search and found this great site for info. I was looking at the zz465 crate engine which is basicly the same engine as the 385 fast burn,and the zz430, they are the same crate engine but with different cam.
Correct me if im wrong. I have a 1987 monte carlo ss that im going to put this engine in. It will be a streetable not daily driver but some what. Behind this engine i will have a 6sp tranny out of a 96 camaro stock, 4.56 gear. I im looking for that thump rough idle sound but not sure if 465 hp will be good too much hp in the street hope not. I had the 385 running on my mc and i was craving a more chopy sound and some what more hp. But dont know which cam will give me my desires and balance out with the 385 fast burn, well the hot cam p/n 24502586 with the 1.6 rockers will as a slap in. But will the 12370847 I:234 E:242 lift I:539 E:558 1.5 rockers be just as good as the hot as a slap in only. Will it balance out right, and will i turn some heads streetable .
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Old 12-17-2006, 05:18 PM
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WELCOME to Hotrodders.com

The Hot Cam is not all that HOT ... as in choppy and rough idle. It is fairly tame ... It has a fair amount of lift with the 1.6 ratio rockers ... but the duration is mild. If you want CHOPPY and WILDER ... you need something else.

Just my nickel ...

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Old 12-17-2006, 07:39 PM
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Quote:
Originally Posted by Deuce
WELCOME to Hotrodders.com

The Hot Cam is not all that HOT ... as in choppy and rough idle. It is fairly tame ... It has a fair amount of lift with the 1.6 ratio rockers ... but the duration is mild. If you want CHOPPY and WILDER ... you need something else.

Just my nickel ...

Deuce ... Moderator
thanks for the welcoming deuce. what would you recomend on my 385 fast burn for my desire of a choppy sound. would you recomend the zz465 cam, what springs would i need for the zz465 cam.
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Old 12-17-2006, 07:52 PM
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Quote:
Originally Posted by junior2
deuce ... what would you recomend on my 385 fast burn for my desire of a choppy sound. would you recomend the zz465 cam, what springs would i need for the zz465 cam.
I have no real suggestions ... as I have not tried anything else in my engine. I had at one time considered going into mine and changing it for something a little better sounding but got sidetracked by buying another 32 ... then I bought another ZZ430 ( #216 ) for the coupe.

When I get the 3W on the road ... I am planning on stepping the Roadster up a good bit ... as I will not need it to be as highway friendly ...

I have a aluminum block 427 SBC with good stuff in it ... to go in the roadster.

Deuce ...
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Old 12-17-2006, 08:09 PM
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was doing some reading, and some say the choppy sound cam is no good in thstreet. it only producess hp at higher rpms. so i wuess ill be looking at one of gm cams in the gm performance parts catalog.
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Old 12-17-2006, 08:53 PM
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I had a original ZZZ 350 crate engine ( 1990 or so ) ... the first of the ZZ series of GM aluminum head crate engines and it had a choppy idle. Even with the 1.5 rockers. Made good power too. GM went to a more user friendly ( EPA type ) camshaft profile for the ZZ2 and up ZZ engines.

I had considered putting the ZZZ cam in one of my fast burn engines and using the 1.6 rockers. The lift would be less than the .525 lift limit on the stock fast burn heads valve springs but should lope and chop pretty good ... due to the duration.

So many options and too few hours in a day ...
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