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Either you've got cheap fuel, too much timing, or a buildup of carbon in the combustion chambers. Check the "knock sensor" answer a zz4 engine requires a min. of 92 octain gas, are you using the right gas?
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What is the the stroke bore of gm 350 zz4 crate engine?
3.48 inches.
What is a ZZ4 engine?
It is a carbureted GM 350 crate motor rated at 355hp/405 lb-ft, retails for $6,499.
Torque spec for 350 Chevrolet zz4 intake manifold?
Intake Manifold (Cast Iron Heads) Non- Hardening Sealer 30 ft-lbs.
What year is my 350 CHEVY engine 10243880?
1996-2000 SBC 350 2 or 4 bolt main and ZZ4, roller cam, one piece rear main seal Apparently these blocks were actually used i a variety of vehicles, mostly trucks though with the 906 heads that breathed about 20% less on exhaust. The ZZ4's had 330 hp stock and aluminium heads (im pretty sure) and a MUCH better cam.
Does the zz4 have aluminum connecting rods?
No. They are powdered metal.
What year engine came standard on a 1996 Boss Hoss 350 motorcycle?
From 1990 to 1995 Boss Hoss' were only available without engines. You supplied your own.In 1996 the Chevrolet ZZ4 350 cubic inch [5.7 liter] block was the standard issue engine in the bikes. The ZZ4 block is a crate motor designed and built by Chevrolet that creates 355 standard horsepower to the crank at approximately 6000 RPM. The standard short block is primarily made of steel while the heads are aluminum.
What is the oil capacity of a zz4 engine?
5Qts with stock oil pan
What type of oil to use in ZZ4?
5w30 for first 3oo miles and then 5w30 synthetic
What is the firing order for a Chevrolet ZZ4 engine with hei dist?
Knowing the firing order of an engine can help with troubleshooting later. The firing order of a Chevrolet ZZ4 Engine is 1-8-4-3-6-5-7-2.
What type of fan blade do you need for a serpentine belt on zz4 motor?
a reverse fan blade and fan clutch
What is the weight of a GM zz4 crate engine?
shiping weight is 400, so probaly 370 without packaging materiels
ZZ4 350 being installed in your 1986 El Camino corvette-derived high-performance heads with d-shaped exhaust ports what are the best type of performance headers can you put on it?
Depends on how much money you want to spend. I installed a set of Headman Headers on my 1970 SS 454 w/ series 40 flowmasters. (sounds Great..)
