ZZ430 Upgrade

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Apr 11, 2007 | 02:30 AM

Punisher32x

Thread Starter

Instructor

Joined: Dec 2002

Posts: 134

Likes: 0

From: Dublin CA

ZZ430 Upgrade

Hi, I currently have a 385 fast burn crate motor in my 71' and I was going to install the LT4 hot cam kit to make a ZZ430 clone, My question is to anybody who has performed this upgrade before, what parts are used in the kit because I know some of the parts in the hot cam kit are already in the 385 fast burn motor?

Thanks ahead of time for your help

Apr 11, 2007 | 06:18 AM

Fevre

Race Director

Joined: Mar 2001

Posts: 11,322

Likes: 1

From: Living in the Hartland

Fastburns already have LT4 valve springs so you should be able to drop in the hot cam no problem. With 1.5 rockers you get about .495 lift, with 1.6 rockers you get .525 lift.

Apr 11, 2007 | 06:38 AM

jerome1979

Racer

Joined: Apr 2005

Posts: 465

Likes: 1

From: FRANCE (Lyon)

Take a hot cam kit!

only spring are still on 385 FB all other parts are different (camshaft, rocker)

Part#1248002
like this:
http://store.summitracing.com/partde...2&autoview=sku

Apr 18, 2007 | 04:00 PM

Punisher32x

Thread Starter

Instructor

Joined: Dec 2002

Posts: 134

Likes: 0

From: Dublin CA

Hi, one more question for everybody. I am currently running synthetic oil (Mobil 1 5W 30), and I was told once I install the LT4 hot cam kit I should change back to regular non-synthetic Mobil 1 10W 30 for a proper cam break in procedure?

Is there any truth to why I should change to non-synthetic?

Thanks a lot everybody who have already responded

Apr 18, 2007 | 04:10 PM

1fastC3

Racer

Joined: Mar 2005

Posts: 393

Likes: 3

From: Dallas, TX

Get a can of GM EOS break in lube if your really worried and dump it into the oil, or use Shell Rotella T. As for the oil afterwards, just use what youve been using.

-alex

Apr 18, 2007 | 04:32 PM

jerome1979

Racer

Joined: Apr 2005

Posts: 465

Likes: 1

From: FRANCE (Lyon)

http://www.sallee-chevrolet.com/Disc.../653/1300.html

hope this help

Apr 18, 2007 | 04:42 PM

DZRick

Le Mans Master

Joined: Jun 2005

Posts: 5,447

Likes: 3

From: Syracuse NY

Quote:

Originally Posted by jerome1979

http://www.sallee-chevrolet.com/Disc.../653/1300.html

hope this help

That will help you and I'll add price the out the hotcam and 1:6 rockers of your choosing compare that to the "kit" then decide.

I went with the cam and rockers instead of the kit, it was cheaper. Nice motor too.

Apr 18, 2007 | 05:01 PM

Scootin_Z

Burning Brakes

Joined: Jul 2006

Posts: 826

Likes: 22

From: Chicago Area

I've always been told to use regular oil to break in as well. I don't know...I just do it and then swap to my amsoil.

I did a ZZ430 clone in my Camaro. Great motor for the money! Drove the car on the Hot Rod Power Tour a few years back from Milwaukee to Kissimmee Fla in sweltering heat with the A/C and still got 18 MPG with a 700R4 installed. Motor ran flawlessly.