ZZ4 1974 Corvette
Thread Starter
Racer
Joined: Dec 2004
Posts: 343
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From: LAKESIDE (San Diego) CALIFORNIA
ZZ4 1974 Corvette
can anyone suggest what flywheel to use with the ZZ4 engine? i know it is supposed to be externally balanced and it came with a flex plate..i have a stock clutch and a stock muncie 4-speed and the flywheel i have is for the original two piece rear main engine i have now, so i cannot use it..i now need a flywheel for a one piece rear main....thanks for the help
joe
joe
Last edited by deputy2u; Mar 31, 2012 at 05:33 PM.
Thread Starter
Racer
Joined: Dec 2004
Posts: 343
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From: LAKESIDE (San Diego) CALIFORNIA
I have been on this board 8 years and have never seen a question posed without a number of answers....are all the guys with vintage Vettes gone?
Last edited by deputy2u; Mar 31, 2012 at 07:55 PM.
Pro
Joined: Feb 2012
Posts: 577
Likes: 6
Be a bit more patient. It's a nice Spring day. There are a lot of car shows today all over the country and I'm sure many members are either out driving or out working on their Vette. I'm sure you'll see some answers pop in tonight.
Melting Slicks
Joined: Jan 2012
Posts: 3,039
Likes: 504
From: myrtle beach sc
Army
Gm sells the correct flywheel. How did you get the ZZ-4 engine? I have a 68 with 327 and made the mistake ( I think ) of getting the smaller 10 1/2" correct one piece rear seal 153 tooth flywheel to keep the 68 only starter. I have had trouble with my clutch and original bell housing and clutch fork ball stud. You need the correct 11" 168 tooth(?) flywheel and I am assuming you already have the correct 11" bell housing and starter. Lou.
Last edited by loup68; Mar 31, 2012 at 08:50 PM. Reason: added a space between two words.
Thread Starter
Racer
Joined: Dec 2004
Posts: 343
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From: LAKESIDE (San Diego) CALIFORNIA
tks, Lou..that matches the info i have gathered so far..i do need the 11 inch clutch and i do have the right starter,someone just IM'd me the part number (GM 10105832) calls for 14" 168 tooth..i would like to find an aftermarket crossover flywheel and maybe get some info on a complete Hayes clutch...did not consider the fork ball stud..i guess i will get it all, clutch, fork and ball stud along with the flywheel, bell housing should fit, but i will check.
i found the ZZ4 engine on Craigs' list, about 2000 mile for $1500.00..a friend has an engine trailer so we are going to hook it up and see how it runs.
i found the ZZ4 engine on Craigs' list, about 2000 mile for $1500.00..a friend has an engine trailer so we are going to hook it up and see how it runs.
Last edited by deputy2u; Mar 31, 2012 at 10:52 PM.
Thread Starter
Racer
Joined: Dec 2004
Posts: 343
Likes: 0
From: LAKESIDE (San Diego) CALIFORNIA
Thank you...appreciate the help and you putting together that combination..since it works for you, that is exactly what i will do with my 74.. that way i do not have to experiment..thanks again...
joe
joe
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Thread Starter
Racer
Joined: Dec 2004
Posts: 343
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From: LAKESIDE (San Diego) CALIFORNIA
ok, now i am getting confused again (not hard to do) i finally found all the specs on my ZZ4 and ZZ71S is using a Flywheel #14088650 which is a 12 3/4 inch and 153 tooth with a 10.4 clutch and has had no problems running or fitting this setup to his ZZ4 and stock bell housing (my 74 has a staggered starter and if memory serves me, this indicates a 168 tooth)...if i use the Flywheel #10105832 which is a 14 inch and 168 tooth, will this fit under my stock bellhousing and do i still use a 10.4 clutch or can i go to an 11 inch clutch? ..... AND thanks for all your help, guys, it is appreciated..
Le Mans Master
Joined: Apr 2001
Posts: 5,941
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From: Was New Orleans but swam to Baton Rouge LA
Cruise-In IX Veteran
ok, now i am getting confused again (not hard to do) i finally found all the specs on my ZZ4 and ZZ71S is using a Flywheel #14088650 which is a 12 3/4 inch and 153 tooth with a 10.4 clutch and has had no problems running or fitting this setup to his ZZ4 and stock bell housing (my 74 has a staggered starter and if memory serves me, this indicates a 168 tooth)...if i use the Flywheel #10105832 which is a 14 inch and 168 tooth, will this fit under my stock bellhousing and do i still use a 10.4 clutch or can i go to an 11 inch clutch? ..... AND thanks for all your help, guys, it is appreciated..
Thread Starter
Racer
Joined: Dec 2004
Posts: 343
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From: LAKESIDE (San Diego) CALIFORNIA
thanks, Mark, what starter are you using, the ZZ4 block shows an straight bolt pattern but my stock block has a staggered bolt pattern and my starter has an iron nose.. so i guess i need a starter with a nose? thanks
joe
joe
Thread Starter
Racer
Joined: Dec 2004
Posts: 343
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From: LAKESIDE (San Diego) CALIFORNIA
THANKS ALL, i finally got it all sorted out and i could not have done it without all your help, i have found a couple of aftermarket flywheel and clutch combinations as well as part number from GM, Napa and Zoom if anyone needs that information, let me know..i am always happy to give back..thanks again
joe
joe
Le Mans Master
Joined: Apr 2001
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From: Was New Orleans but swam to Baton Rouge LA
Cruise-In IX Veteran
I used the same starter that was on my original 350. My ZZ4 block was drilled for both starter types.
Thread Starter
Racer
Joined: Dec 2004
Posts: 343
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From: LAKESIDE (San Diego) CALIFORNIA
thanks, Mark, that is what i found in my block as well...Anyone want any crossover numbers for flywheels from GM to Aftermarket, let me know and i will post them..thanks, ALL.
joe
joe
Thread Starter
Racer
Joined: Dec 2004
Posts: 343
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From: LAKESIDE (San Diego) CALIFORNIA
Ralph,
i have the ZZ4 Crate Engine Service Parts List and according to that, the plugs are:
GM part #19157987----R42LTS A/C Delco...8
hope this helps, i do not have a crossover yet since i have not gotten that far with my ZZ4.
joe
i have the ZZ4 Crate Engine Service Parts List and according to that, the plugs are:
GM part #19157987----R42LTS A/C Delco...8
hope this helps, i do not have a crossover yet since i have not gotten that far with my ZZ4.
joe
Burning Brakes
Joined: Feb 2011
Posts: 849
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From: Woodland California
Thanks
I have never had a problem using the recommended plugs in anything.
But I have wasted time and money using other brands that crossed over on some body's chart.
Thanks again
Ralph
I have never had a problem using the recommended plugs in anything.
But I have wasted time and money using other brands that crossed over on some body's chart.
Thanks again
Ralph
Le Mans Master
Joined: Apr 2001
Posts: 5,941
Likes: 281
From: Was New Orleans but swam to Baton Rouge LA
Cruise-In IX Veteran
Thread Starter
Racer
Joined: Dec 2004
Posts: 343
Likes: 0
From: LAKESIDE (San Diego) CALIFORNIA
just found Summit sells these:
ACDelco R42LTS - ACDelco Conventional Resistor Spark plugs
Spark Plug, AC Delco, Each
Part Number: ACF-R42LTS
a little pricey, though...
ACDelco R42LTS - ACDelco Conventional Resistor Spark plugs
Spark Plug, AC Delco, Each
Part Number: ACF-R42LTS
a little pricey, though...