cooling a zz4
05-12-2004, 08:15 AM
#1
Racer
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cooling a zz4
Any zz4 owners out there..I was wondering how do you keep it cool?Electric fan..if so what size and cfm's? standard 4 blade fan? flex fan? do they run hot ..like some of the old engines in traffic?
05-12-2004, 08:21 AM
#2
Racer
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Re: cooling a zz4 (newbe60)
I installed the ZZ4 in my 79. I did replace the radiator with a 4 row. Other than that, using stock configuration. Engine runs at 180 degrees, never have had a problem with running hot.
05-12-2004, 09:29 AM
#4
Le Mans Master
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Re: cooling a zz4 (newbe60)
I installed a Stewart stage 2 water pump and ran the stock fan with the stock radiator in my 71 for a while. I just recently installed a 16 inch SPAL fan and I love it. It really cleaned up the engine compartment, and the only draw back is the power it took so now I upgraded the alternator.
05-12-2004, 11:20 AM
#5
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St. Jude Donor '06-'10, '13
Re: cooling a zz4 (Sigforty)
I have the ZZ4 in my 1980. I have the stock type radiator, an Edelbrock aluminum water pump. I have run with the stock belt driven fan and now have the dual 11" Spal's. Both cooled the motor just fine.
05-12-2004, 03:54 PM
#6
Pro
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Re: cooling a zz4 (newbe60)
We built a new crate ZZ4 to ax. 430 HP and cooled it with an aluminum radiator and a set of GM fans from a 1990 Corvette. We sourced them at a swap meet and replaced both motors with new ones from a Chevy dealer.
The ZZ4 was sold when we decided to use the LS6, but we are keeping the same cooling system.
Spike
The ZZ4 was sold when we decided to use the LS6, but we are keeping the same cooling system.
Spike
05-12-2004, 04:09 PM
#7
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Re: cooling a zz4 (spikezz4)
No ZZ4 here, but always ran at 210. Installed a "Super Kool Waterpump" and consistently stay at 180 now. Something to think about just in case. :)
05-12-2004, 05:22 PM
#8
Melting Slicks
Re: cooling a zz4 (Sigforty)
zz4 with hotcam...
stock radiator
stewart stage II pump and dual 11" spal fans kit
No problems!! Runs between 175-200..fluctuating as the fans turn on nad off...
stock radiator
stewart stage II pump and dual 11" spal fans kit
No problems!! Runs between 175-200..fluctuating as the fans turn on nad off...