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Engine Rebuild/Build up....


Guest Anonymous

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Ray makes a good point. I was going to point out the other crate motors too but I'm not keen on the iron heads. The ZZ4 is pretty much a stock motor with good heads etc. - PM rods and hyper pistons are sourced from production motors. Super Chevy has done a build up on some of those motors with good results. Try to get aluminum heads if you can but if you can't get them later..

 

P.S. I noticed an ad for a Chevy truck the other day - 340HP and 400+ftlbs I think it was. That's a stock truck motor! smile.gif

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Guest kc6wfs

24502609

5.7L (350ci) High Output Chevrolet V8

 

Several significant improvements have been made to the 350-cubic-inch High Output

Chevrolet small- block V8. This updated engine assembly is available as part number

24502609 (ZZ4 manufacturing code).

The 350ci High Output Chevrolet is the perfect power plant for many high-performance off-highway applications. The H.O. engine offers outstanding performance at an affordable price. It is a bolt-in replacement for all 265-400ci small-block Chevrolet V8s.

 

High Output 5.7-liter engines are assembled using brand new, premium quality components. This assembly combines proven smallblock components with the latest advances in engine technology, including lightweight aluminum cylinder heads, low-friction hydrolic roller tappets, and hypereutectic (high-silicon) pistons. All H.O. small-blocks are firetested and final balanced at the factory to ensure

their quality and performance.

 

A prototype H.O. 350 engine with a Quadrajet carburetor, 1 3/4" headers,andlow-restriction

mufflers produced 355 horsepower (at 5250 rpm) and 405 lb-ft torque (at 3500 rpm).

 

This is from the Sallee page at: http://www.sallee-chevrolet.com/ChevySmallBlockV8s/355.html

 

Dave

 

 

------------------

www.geocities.com/kc6wfs/240z.html

www.NitroPhotos.com

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Guest Anonymous

Just a heads up if you are in a rush for your parts, sallee isn't really setup to send your order out the same day as you order it -I just ordered a Scat internally balanced stroker rotating assembly with the 6.0" rods that Mikelly suggested from them.

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I like the crate motor route but the prices are a little steep and I am cheep..

 

I put together a crate motor of sorts I found a good running 96 vortec pickup motor (later motors have gear driven waterpumps they can also be used but you have to use the pump, the block is different) bought a GM Hot cam kit(525/525--218/228@.050) and a fast burn intake. So far for a complete long block I have about a grand in it and according to the guys at Scroggin and Dickey in Lubock it should be in the 380 to 400hp range. Now I didn't get a warenty but I got a good running motor with low miles and then added to it... Remember the crate motors you are buying IE the 350hp and the 380hp are just late model truck motors with different cams and or fast burn heads. If you look at the specs for a 96-99 vortec pickup motor they are almost identical the same Hypereutectic pistons, 9.5 to 1 comp, roller cam(419/419--195/195@.050), stock 1.5 rockers, vortec e31 heads, windage tray, the good rods etc..the cams just vary due to the use of a carb..

 

BTW if you shop arround you can get the Hot cam kit for under 500$ and it comes with Crane self aligning rockers lt4 spring kit and the Hot cam. Also Scroggin and Dickey has fast burn take off intakes (performer RPM copy) that fit a vortec for 129$. I you buy a real timing chain to go with. For about 700$ and what ever you paid for the motor you have a crate motor copy with a better valve train and a better cam...Remember if you run more than .460 lift with vortec heads you have to machine the valve guides for clearence..

 

If you don't want to spend that much get a take out lt1 cam(447/459-201/208@.050) change the valve springs, and you have a 300+hp crate motor for about 100$ on top of the cost of the motor.

 

Remember what has been said before the faster street z cars have between 350 and 400hp any more and it is very hard to put it to the ground.... and the cost of the motor gets crazy...

 

 

 

[This message has been edited by Ray (edited March 04, 2001).]

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The motor in question is a 96 or early 97 vortec pickup motor... they came in almost all Chevy and Gmc pickups. Now the specs look like this

 

350 cid

2 bolt main block with one peice rear main seal.

cast crank

good rods

windage tray

hyp. cast pistons 9.5 to 1 comp.

e31 vortec heads

hyd. roller cam 419/419--196/206@.050

week .450 max lift valve springs

stamped steel 1.5 rocker arms

 

Now this looks almost identical to the motor in the link below except for the 4 bolt main and the cam...

http://www.salleechevrolet.com/ChevySmallBlockV8s/xtreme_4x4_350.html

 

 

Now if you look down at the options one of the options is the GM HOT roller cam kit. and they show this to produce 421hp.... Now that may be a bit high but look at the concept... If everyone knew that they could go buy a motor out of a truck and change the cam, machine the heads a little, add some roller rockers and put it all back together and it out perform one of there highly touted crate motors they wouldn't have a market for them.....

 

If you have any other questions email me I will gladly share what I have learned... My moto is I have more time than money and the more I know the cheeper it will be. Works alot in wrecking yards....

 

 

Good luck Later ...

 

 

 

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Remember it is only a piece of metal.

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Guest sfm12

I would like to thank Ray for teaching me to be a good, cheap scrounge. He and I go back a ways. (college roomates).

I was able to get a donor 327 small block without heads. I found some late model iron (hencho en Mexico) heads with the larger valves. I was able to get all this in a barter deal. No cash.

Ray, and a couple other people, informed me, that with an aluminum intake and a mild, cam I should produce approximately 300 hp. With a new cam, lifters, springs carb and rebulid kit, I should still be way under a grand into the motor.

Now, I know that not everyone can find an engine for free, but with patience and research, we can all save a lot of money.

 

Thanks Ray!

 

Scot

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Guest Anonymous

quote:

Originally posted by Ray:

and they show this to produce 421hp....

 

If you have any other questions email me I will gladly share what I have learned... My moto is I have more time than money and the more I know the cheeper it will be. Works alot in wrecking yards....

 

 

 

How do you put all that torq to the ground?

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Putting that kind of HP and Torque to the ground isn't realy that hard as long as you learn how to drive with that kind of HP. My car is actually very easy to cruise in, and only becomes a handfull when I step on the right pedal. This from a car capable of running low 11's/high 10's. Wide sticky tires help, and plan your build up of the car's chassis around the HP you desire!

 

Mike

 

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http://hometown.aol.com/dat74z/myhomepage/auto.html

"I will not be a spectator in the sport of life!"

mjk

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yes the motor is fuel injected in the factory configuration, but the way most of us are using it is with a carb. The reason for this was that the injection system that comes on the late model pickups is very difficult to modify for High Performance due to its design...But as I stated earlier compare the two motors and then use the parts from the production motor to basicly build a crate motor. Lot cheeper and easier. Also all you really nead is the long block out of the pickup and nothing else. This should run you about 300 to 500$ for the assembly at most wrecking yards.. I have been quoted as high as 1500$ by some smoke wrencher but look arround. There are so many of these motors some one will sell you one without the injection, just make sure that you get the intake bolts(they are special!!)

 

------------------

Remember it is only a piece of metal.

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