zz427 or zz502 - Team Camaro Tech
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post #1 of 25 (permalink) Old Jun 28th, 14, 09:03 PM Thread Starter
Volkmar
 
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Smile zz427 or zz502

Hello there,
I have a question for the experts of you.
I have a 69 Camaro SS RS. Currently with a 427cui from 1970 and a tremec 5 speed. The engine is not reliable anymore. The water pump just died.
Now I want to put a new crate engine in, keep the 5speed and have a reliable, streetable cruise car with power and great sound. Engine should be already assambled since I am not an expert and will ask a workshop to do it.
Currently I am between the GM zz427 and the zz502. I saw that both are around 9,000 USD. That's the amount I am willing to spend on the engine.
What do you recommend for my purposes?
No race, reliable!, lot of power, good sound.

Thanks for your recommendations.
Volkmar
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post #2 of 25 (permalink) Old Jun 28th, 14, 10:16 PM
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Re: zz427 or zz502

Rebuild the 427 you already have

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post #3 of 25 (permalink) Old Jun 29th, 14, 07:36 AM
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Re: zz427 or zz502

Are you buying a new engine because a water pump died?

If you must buy a new one go 502

Scott from NJ. Stay thirsty, my friends


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post #4 of 25 (permalink) Old Jun 29th, 14, 12:07 PM
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Re: zz427 or zz502

replace the water pump and keep driving it. what makes you think the motor is on its last legs?
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post #5 of 25 (permalink) Old Jun 29th, 14, 12:30 PM
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Re: zz427 or zz502

ZZ502, but then again, I am biased...

BE different....ACT normal.

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post #6 of 25 (permalink) Old Jun 29th, 14, 12:36 PM
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Re: zz427 or zz502

Money to burn - donations accepted here

Rebuild the original IMHO.


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post #7 of 25 (permalink) Old Jun 29th, 14, 10:40 PM
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Re: zz427 or zz502

If you don't need the extra 70 hp, rebuild the 427.

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post #8 of 25 (permalink) Old Jun 30th, 14, 12:55 AM
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Re: zz427 or zz502

Is this a trick question, BIGGER is always better 502

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post #9 of 25 (permalink) Old Jun 30th, 14, 10:06 AM
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Re: zz427 or zz502

502! More cubes and a great foundation to build off later on if you want.

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post #10 of 25 (permalink) Old Jun 30th, 14, 01:35 PM
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Re: zz427 or zz502

man $9K in a 427 that you already have would make a nasty nasty motor, on the other hand my vette would like a 427 that runs pump gas, this $5.99 a gallon stuff sucks!
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post #11 of 25 (permalink) Old Jun 30th, 14, 01:41 PM
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Re: zz427 or zz502

Looks like the majority vote is to replace the WP and rebuild your 427.
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post #12 of 25 (permalink) Old Jun 30th, 14, 01:53 PM
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Re: zz427 or zz502

This is for you. Your Camaro will be fun to drive again. http://www.crateenginedepot.com/ZZ-5...P9419C556.aspx
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post #13 of 25 (permalink) Old Jun 30th, 14, 05:15 PM
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Re: zz427 or zz502

I'm old school and the 427 are the numbers I would use. I hear crate motors are assembled by people who don't know what their doing. I.E. Either read it on this Forum or the Nasty Forum, but all the piston ring gaps were installed facing the same direction. A Monkey could be trained to do a better job.

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post #14 of 25 (permalink) Old Jun 30th, 14, 05:39 PM
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Re: zz427 or zz502

Let me be the first to offer to buy your 427. I will pay you $150 for your engine. That is the cost of a new water pump and a shop manual.
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post #15 of 25 (permalink) Old Jun 30th, 14, 05:48 PM
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Re: zz427 or zz502

Post where you live and somebody can find you a motor guy. What would you do with the old motor? A complete stroker rotating assembly is under 3k. New heads will make more power on pump gas.
What heads intake and carb are on the 427, so that we can start to decide witch way to go. What rear gear?

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