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ZZ572/620 (12498792) and ZZ572/720R Long Block Specifications
Specifications Part Number 88962928
This ZZ572 long block specification sheet should be used in conjunction with the ZZ572 short block specification sheet, part
number 88962927.
Thank you for choosing Chevrolet Performance Parts as your high performance source. Chevrolet Performance Parts is
committed to providing proven, innovative performance technology that is truly.... more than just power. Chevrolet Performance
Parts are engineered, developed and tested by the factory to exceed your expectations for fit and function. Visit our website at
www.chevroletperformanceparts.com
for the Chevrolet Performance Parts Authorized Center nearest you.
This publication provides general information on components and procedures that may be useful when installing or servicing
a ZZ572 long block assembly. Please read this entire publication before starting work. Also, please verify that all of the
components listed in the Package Contents section below were shipped in the kit.
The information below is divided into the following sections: package contents, torque information, ZZ572/620 and ZZ572/720R
long block assembly specifications, and a service parts list.
The ZZ572 long block assembly includes additional components to the short block assembly which make up the long block.
Some key items included are the aluminum cylinder heads, valve train, camshaft, lifters, SFI Foundation Inc. approved
harmonic damper, and oil pan. Specific items and part numbers are listed at the end of these instructions.
Chevrolet recommends that you use a minimum octane rating of 92 (R+M/2) fuel in the ZZ572/620 (9.6:1 compression ratio)
and 110 octane fuel in the ZZ572/720R (12:1 compression ratio) to prevent preignition.
It is not the intent of these specifications to replace the comprehensive and detailed service practices explained in the factory
service manuals.
For information about warranty coverage, please contact your local Chevrolet Performance Parts dealer.
Observe all safety precautions and warnings in the service manuals when installing a ZZ572 Tall Deck Big Block Chevrolet
(BBC) long block assembly in any vehicle. Wear eye protection and appropriate protective clothing. Support the vehicle
securely with jackstands when working under or around it. Use only the proper tools. Exercise extreme caution when working
with flammable, corrosive, and hazardous liquids and materials. Some procedures require special equipment and skills. If you
do not have the appropriate training, expertise, and tools to perform any part of this conversion safely, this work should be done
by a professional.
The information contained in this publication is presented without any warranty. All the risk for its use is entirely assumed by the
user. Specific component design, mechanical procedures, and the qualifications of individual readers are beyond the control of
the publisher, and therefore the publisher disclaims all liability incurred in connection with the use of the information provided in
this publication.
88962928
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REV 16JA15
ZZ572/620 and ZZ572/720R Long Block Specifications
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Resumen de contenidos para Performance ZZ572

  • Página 1 This publication provides general information on components and procedures that may be useful when installing or servicing a ZZ572 long block assembly. Please read this entire publication before starting work. Also, please verify that all of the components listed in the Package Contents section below were shipped in the kit.
  • Página 2 This publication is intended to provide information about the ZZ572 engine and related components. This manual also describes procedures and modifications that may be useful during the installation of a ZZ572 engine. It is not intended to replace the comprehensive service manuals and parts catalogs which cover Chevrolet engines and components.
  • Página 3 ZZ572/620 and ZZ572/720R High Performance Engine Torque Specifications: Note: See Deluxe Specifications for additional torque values not included here. Fastener Torque (lb.ft.) Torque (Nm) Thread Treatment Notes Windage tray studs 30 weight oil —- Oil pump bolt 30 weight oil —-...
  • Página 4 4. Start the engine and adjust the initial timing. Set the ignition timing to 15° before top dead center (BTDC) and the engine idle to 950 RPM (ZZ572/620) or 1200 RPM (ZZ572/720R) with a timing light and the vacuum disconnected and plugged.
  • Página 5 Valve Diameter (Intake/Exhaust): ........2.25”/1.88” Chamber Volume: ............118cc Dual valve springs Average Spring Rate: ............480 lbs.in for ZZ2572/620. 652 lbs.in for ZZ572/720R Camshaft: .................. Hydraulic roller tappet for ZZ2572/620. Mechanical roller tappet for ZZ572/720R Lift: .................. .632” intake and exhaust for ZZ2572/620. .714” intake and exhaust for ZZ572/720R Duration: .................
  • Página 6 3866604 Stud-O/Pmp 19302731 Spark Plug 3864814 Washer-Cr/Shf Bal 88962187 Baffle Asm, Oil Pan 88962919 Bolt/Screw, Cyl Hd (Cyl Head Valley) 19210721 Camshaft Asm, Eng 12499255 Head, Cyl 88962928 REV 16JA15 ZZ572/620 and ZZ572/720R Long Block Specifications TITLE PART NO. SHEET...
  • Página 7 Cover, Vlv Rocker Rh *572* 3865886 Shaft Asm 19210726 Arm Kit, Valve Rocker Alum Roll 3866604 Stud-O/Pmp 19302733 Plug-Spark 88962187 Baffle Asm, Oil Pan 3864814 Washer-Cr/Shf Bal 88962928 REV 16JA15 ZZ572/620 and ZZ572/720R Long Block Specifications TITLE PART NO. SHEET...
  • Página 8 à bloc long ZZ572/620 et ZZ572/720R et une liste de pièces de rechange. Le moteur à bloc long ZZ572 comprend plus de composants que le moteur à bloc embiellé, qui constitue le moteur à bloc long.
  • Página 9 French Information juridique et relative aux émissions La présente publication a pour objet d'offrir des renseignements sur le moteur ZZ572 et les composants connexes. Le présent manuel décrit également les procédures et les modifications pouvant être utiles pendant la pose d'un moteur ZZ572.
  • Página 10 French Spécifications de couple de serrage des moteurs haute performance ZZ572/620 et ZZ572/720R : Remarque : Consulter les spécifications du moteur de luxe pour connaître les valeurs de couple de serrage supplémentaires non incluses dans le présent document. Fixation Couple (lb-pi)
  • Página 11 Ce moteur doit être rempli d'huile et amorcé. Il vous faut ajouter de l'huile spécifiée (voir les instructions au démarrage) à votre moteur neuf. Vérifier le niveau d'huile moteur sur la jauge d'huile et compléter au besoin. 88962928 REV 16JA15 ZZ572/620 and ZZ572/720R Long Block Specifications TITLE PART NO. SHEET...
  • Página 12 4. Démarrer le moteur et procéder au calage de l'allumage initial. Régler le calage de l'allumage à 15° avant le point mort haut (av. PMH) et le régime de ralenti du moteur à 950 tr/min (ZZ572/620) ou 1 200 tr/min (ZZ572/720R) avec une lampe stroboscopique et la dépression débranché, puis rebranchée.
  • Página 13 Carburant : ................. Suprême sans plomb - 92 (R+M/2) pour ZZ2572/620. Carburant de course - 110 (R+M/2) pour ZZ572/720R Régime moteur maximal : ............6 000 tr/min pour ZZ2572/620. 6 750 tr/min pour ZZ572/720R Bougies d'allumage : ..............AC Delco R45XLS pour ZZ2572/620.
  • Página 14 French Liste des pièces de rechange ZZ572/620 : N° de pièce Quantité N° de pièce Quantité 12498792 Ens. moteur, bloc long 572 3921912 Goujon-bille de culbuteur 3860038 Guide, tige de poussée 19212195 Ensemble bloc-moteur du poussoir de soupape 455005 Boulon/vis, chapeau de...
  • Página 15 French Liste des pièces de rechange ZZ572/720 : N° de pièce Quantité N° de pièce Quantité 19212195 Ensemble bloc-moteur 88961915 Rondelle, cache-soupapes 455005 Boulon/vis, chapeau de 88961160 Culasse palier de vilebrequin (long) 3921912 Goujon-bille de culbuteur 15651246 Boulon/vis, chapeau de 3860038 Guide, tige de poussée...
  • Página 16 Esta publicación brinda información general sobre los componentes y procedimientos que pueden ser útiles al instalar o dar servicio a un ensamble de bloque largo ZZ572. Por favor lea esta publicación completa antes de comenzar el trabajo. Además, por favor verifique que todos los componentes indicados en la sección de Contenidos de paquete a continuación se enviaran en el juego.
  • Página 17 Este manual también describe los procedimientos y modificaciones que pueden ser útiles durante la instalación de un motor ZZ572. No está diseñada para sustituir a los exhaustivos manuales de servicio y catálogos de partes que cubren los motores y componentes Chevrolet. Más bien, está diseñada para brindar información complementaria en áreas de interés para los entusiastas del "hágalo usted mismo"...
  • Página 18 Spanish Especificaciones de apriete de motor de alto desempeño ZZ572/620 y ZZ572/720R: Nota: Vea las Especificaciones Deluxe para valores de apriete adicionales no incluidos aquí. Sujetador Apriete (lbs pie) Apriete (Nm) Tratamiento de rosca Notas Pernos de charola aceite de peso 30 —-...
  • Página 19 Este ensamble de motor necesita llenarse con aceite y cebarse. Debe agregar el aceite especificado (vea las instrucciones de arranque) a su nuevo motor. Revise el nivel de aceite del motor en la varilla de medición y agregue de manera acorde. 88962928 REV 16JA15 ZZ572/620 and ZZ572/720R Long Block Specifications TITLE PART NO. SHEET...
  • Página 20 4. Arranque el motor y ajuste la sincronización inicial. Ajuste la sincronización de ignición a 15° antes del centro muerto superior (BTDC) y marcha en vacío del motor a 950 RPM (ZZ572/620) o 1200 RPM (ZZ572/720R) con una luz de sincronización y el vacío desconectado y tapado. Gire el distribuidor en sentido contrario a las manecillas del reloj para avanzar la sincronización.
  • Página 21 Volumen de la cámara: ........... 118cc Resortes de válvula dual Velocidad de resorte promedio: ........480 lbs. pulg. para ZZ2572/620. 652 lbs. pulg. para ZZ572/720R Árbol de levas: ................Elevador de rodillo hidráulico para ZZ2572/620. Elevador de rodillo mecánico para ZZ572/720R Elevación: ...............
  • Página 22 Cárter de aceite 19302731 Bujía 88962919 Perno/Tornillo, Culata de cilindro 3864814 Arandela- (Valle de culata de cilindro) Balanceador de cigüeñal 19210721 Ensamble de árbol de levas, motor 88962928 REV 16JA15 ZZ572/620 and ZZ572/720R Long Block Specifications TITLE PART NO. SHEET...
  • Página 23 Spanish Lista de partes de servicio ZZ572/720: # de parte Cantidad Nombre # de parte Cantidad Nombre 19212195 Ensamble de bloque, motor 88961915 Roldana, cubierta de válvula 455005 Perno/Torillo, Cojinete 88961160 Culata, cilindro de cigüeñal C (largo) 3921912 Perno, Bola de brazo...

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