zz4 crate engine - Team Camaro Tech
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post #1 of 15 (permalink) Old May 6th, 11, 03:17 PM Thread Starter
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zz4 crate engine

Thinking about buying a zz4 from GM Performance Parts. Anyone have any experiences with it? Looking for your thoughts and opinions.

Thanks,
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post #2 of 15 (permalink) Old May 6th, 11, 06:33 PM
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Re: zz4 crate engine

Have one in my camaro for almost eight years. improvements ive added over the years are: eldlebrock, EPS manifold (nice improvemnet), 600cfm holley Dp (stay away from big CFM carbs), thumper cam (if you want it to rock) along with big tube headers (needed for the "D" exhaust ports).
its never let me down.

69 X-44 base coupe, ZZ4, 16lb nodular flywheel, Center force DF clutch + PP, Holley 600DP, Hooker super comp 1 3/4 ceramics, 2.5" dual exhaust w/ X-pipe, flowmaster 40 series mufflers.
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post #3 of 15 (permalink) Old May 6th, 11, 07:59 PM Thread Starter
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Re: zz4 crate engine

Were you satisfied with the performance it its stock form?
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post #4 of 15 (permalink) Old May 6th, 11, 08:00 PM Thread Starter
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Re: zz4 crate engine

How long did you have it before you felt the need to modify?
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post #5 of 15 (permalink) Old May 7th, 11, 04:30 PM
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Re: zz4 crate engine

Quote:
Originally Posted by psm67 View Post
How long did you have it before you felt the need to modify?
about 5 years before i cracked it open. while getting a valve job i decided to pump it up a bit.

its fine right out of the box. 350/390 hp/tq gives you a good feeling

joe c

69 X-44 base coupe, ZZ4, 16lb nodular flywheel, Center force DF clutch + PP, Holley 600DP, Hooker super comp 1 3/4 ceramics, 2.5" dual exhaust w/ X-pipe, flowmaster 40 series mufflers.
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post #6 of 15 (permalink) Old May 7th, 11, 06:09 PM
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Re: zz4 crate engine

I had a ZZ3 (1st Gen ZZ) in my 1st 69 and loved it,hammered it,cruised it.....I had a 10 bolt open 2.73 with a built PowerGlide w/2500 stall...... Nobody believed it until I took them for a ride going 50MPH ...hit it,burn rubber and downshift all at the same time.
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post #7 of 15 (permalink) Old May 7th, 11, 07:03 PM
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Re: zz4 crate engine

I've got the 355 hp ZZ/4 350. I was a little disappointed when I saw it's made in Mexico, but I must admit it runs good. I've done a cam swap in it and it's even better now.
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post #8 of 15 (permalink) Old May 8th, 11, 03:52 PM Thread Starter
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Re: zz4 crate engine

I was also considering the fast burn 385. I like the hp number but would prefer more torque. Still not sure wich way to go.
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post #9 of 15 (permalink) Old May 8th, 11, 08:06 PM
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Re: zz4 crate engine

I have had mine for a year now and have been perfectly happy with it. Holley 650 with 70 and 72 jets, runs perfect. I think its a great deal for the price and plenty of power for the street. If you plan on racing it will be very reliable but a little under powered. When I get board I might do a head and cam swap just for the fun of it but for now it is fine.
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post #10 of 15 (permalink) Old May 8th, 11, 09:00 PM
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Re: zz4 crate engine

Quote:
Originally Posted by kcart55 View Post
I've got the 355 hp ZZ/4 350. I was a little disappointed when I saw it's made in Mexico, but I must admit it runs good. I've done a cam swap in it and it's even better now.

Where did you see that it was made in Mexi?

i thought the base 260hp and 290hp version were made south of the border, but the higher end crates----zz383, ramjet, fastburn, 350HO etc. are made by 2 gm employees in michigan?
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post #11 of 15 (permalink) Old May 9th, 11, 06:15 AM
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Re: zz4 crate engine

I had the same questions last fall for my '68. I ended up getting the FB385 and installing the LT4 cam and 1.6 rockers. I couldn't be happier. Very smooth running at the low end and is a beast at the high end.


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- Completed March 2011, black w/ bumblebee stripe, RS/SS, FB385 w/LT4 cam, TKO-600, Moser 12-bolt
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post #12 of 15 (permalink) Old May 9th, 11, 06:31 AM
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Re: zz4 crate engine

Oh and ... Buenos días, amigos!



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- Completed March 2011, black w/ bumblebee stripe, RS/SS, FB385 w/LT4 cam, TKO-600, Moser 12-bolt
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post #13 of 15 (permalink) Old May 9th, 11, 09:00 AM
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Re: zz4 crate engine

The block was made in Mexico, not the engine. They are great engines. You can get more bang for your $ through a reputable builder. Let me know if I can help with anything. ;-)

71 Chevelle 496 Stroker Hyd Roller 675HP, TH400 3500 Stall, 3.73 12 Bolt.

ATK HP ENGINES

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post #14 of 15 (permalink) Old May 11th, 11, 07:30 PM Thread Starter
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Re: zz4 crate engine

Anyone have any header recommendations. Manufacture and size.
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post #15 of 15 (permalink) Old May 11th, 11, 10:20 PM
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Re: zz4 crate engine

I had a ZZ4 for about a year. It was a very reliable drive anywhere car that went 12.20's all day.


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Then: N/A, 436 ci, Stock Block, Track 1's, Stock Suspension, Ranchos, 3250 lbs... 1.33 60 ft / 9.69 @ 138 mph
Now: Boost...
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