My third ZZ3 just blew up................. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Dean · 05-13-2002, 03:31 PM

Well, Friday my third ZZ3 crate motor blew up. It had 10,000 miles on it. I haven't taken this one apart yet, but I think it may have broken a piston. $120.00 tow bill.

My first one had defective valve springs on it which broke. It dropped a valve and cracked one of the aluminume heads. The 2nd one had the oil pump seize and I lost oil prressure.

Very very frustrating. I bought these things because I didn't want to worry about engine trouble. I baby these things too. I'd hate to see what would happen if I used them in a competition car or something.

Thanks for letting me vent. Has anyone else had problems with the "ZZ" engines? I'm very frustrated. GM gives me the typical response "you were abusing them". Yeah right.

I love my trucks and I'll never get rid of them, but it is this kind of stuff that made me start driving a Honda to work....325,000 miles and I've never touched it. Makes ya think.

Whew....I feel better now..lol

tom hand · 05-13-2002, 03:34 PM

Just go buy a regular "low horsepower" crate motor. I got 300,000 out of my last "Mr Goodwrench" 350 motor

------------------
72 GMC Sierra SWB almost finished---- 84 Softail
Olive Branch MS

[This message has been edited by tom hand (edited May 13, 2002).]

busterwivell · 05-13-2002, 08:12 PM

Man, I'm sorry to hear that. I've got 210,000+ on a 305HO and have never had it open. I'll eventually replace it with acrate motor, but still have to pass emmissions in AZ, so it'll be the base crate motor for me.
Tell me you are under warranty, at least.

------------------
56 Studebaker 2 dr Wagon
66 Chevelle 2 dr 4 speed
71 C30 Longhorn
86 Monte Carlo SS
96 Tahoe

*Randy70C-10* · 05-13-2002, 09:00 PM

Try a ZZ4, haven't heard any bad things about those. But then again, never heard anything bad about the ZZ3 either.

------------------
Yeah, that's right. My name is Randy too!
WWW.Randysrods.freeservers.com
1970 Chevy C-10 shortstep
30 Ford Model A Coupe 4 inch chop, 350, GMC 671 blower-Hell yeah it's fast!
87 Harley Sportster(couldnt get a 350 to fit)
Self Propelled Lawn Mower
Built in USA!!!!

Virginia Beach, VA.

05-13-2002, 03:31 PM	#1
Dean Senior Member Join Date: Jan 2000 Location: Cincinnati, Ohio Posts: 1,492	My third ZZ3 just blew up................. Well, Friday my third ZZ3 crate motor blew up. It had 10,000 miles on it. I haven't taken this one apart yet, but I think it may have broken a piston. $120.00 tow bill. My first one had defective valve springs on it which broke. It dropped a valve and cracked one of the aluminume heads. The 2nd one had the oil pump seize and I lost oil prressure. Very very frustrating. I bought these things because I didn't want to worry about engine trouble. I baby these things too. I'd hate to see what would happen if I used them in a competition car or something. Thanks for letting me vent. Has anyone else had problems with the "ZZ" engines? I'm very frustrated. GM gives me the typical response "you were abusing them". Yeah right. I love my trucks and I'll never get rid of them, but it is this kind of stuff that made me start driving a Honda to work....325,000 miles and I've never touched it. Makes ya think. Whew....I feel better now..lol

05-13-2002, 03:34 PM	#2
tom hand CCRider Join Date: Feb 2000 Location: Olive Branch,MS,USA Posts: 2,232	Just go buy a regular "low horsepower" crate motor. I got 300,000 out of my last "Mr Goodwrench" 350 motor ------------------ 72 GMC Sierra SWB almost finished---- 84 Softail Olive Branch MS [This message has been edited by tom hand (edited May 13, 2002).] __________________ 72 GMC Sierra SWB almost finished---- 84 Softail Olive Branch MS

05-13-2002, 08:12 PM	#3
busterwivell Registered User Join Date: Jan 2002 Location: Sahuarita, AZ USA Posts: 2,033	Man, I'm sorry to hear that. I've got 210,000+ on a 305HO and have never had it open. I'll eventually replace it with acrate motor, but still have to pass emmissions in AZ, so it'll be the base crate motor for me. Tell me you are under warranty, at least. ------------------ 56 Studebaker 2 dr Wagon 66 Chevelle 2 dr 4 speed 71 C30 Longhorn 86 Monte Carlo SS 96 Tahoe __________________ Bill - Tucson, AZ 47 Chevrolet 2 dr sedan 56 Chevrolet 210 2 dr sedan 66 Chevrolet Malibu 2 dr 4 speed 71 Chevrolet C30 Longhorn 86 Chevrolet Monte Carlo SS (Sold) 01 Chevrolet Tahoe IM - BUSTERWIVE@aol.com

05-13-2002, 09:00 PM	#4
Randy70C-10 Account Suspended Join Date: Mar 2001 Location: Virginia Beach, Va. U.S.A. Posts: 15,320	Try a ZZ4, haven't heard any bad things about those. But then again, never heard anything bad about the ZZ3 either. ------------------ Yeah, that's right. My name is Randy too! WWW.Randysrods.freeservers.com 1970 Chevy C-10 shortstep 30 Ford Model A Coupe 4 inch chop, 350, GMC 671 blower-Hell yeah it's fast! 87 Harley Sportster(couldnt get a 350 to fit) Self Propelled Lawn Mower Built in USA!!!! Virginia Beach, VA.



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