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My First Engine Build..Help Please

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Old 09-12-2006, 08:38 AM
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Engine: 305 Qjet
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My First Engine Build..Help Please

Hi Guys,

I've got a 350 engine laying around and before I rebuild it I want to make sure The parts I have will equal sufficient power when I'm finished.


block 10054727 - 89-93 350 block
head 462624 - 2nd gen camaro
Cam- unknown
intake - torquer 2
carb - 650 holley dp
gears 3.73
tranny 700-r4
headers - recommendations

this is what I have sitting around, so when I go to rebuild the motor what is most important for me to change, is that even a good block to use. I know lt1/ls1 would be much better but i'm on a low budget just looking to make good street performance. Thanks for any input
Old 09-12-2006, 10:36 AM
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Car: 1984 Z28 Hardtop
Engine: 383 Carb
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Axle/Gears: 3.54 Dana 44
The block is fine as long as it's in good shape. The heads and intake are garbage, though.
Old 09-12-2006, 12:48 PM
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Car: 89 RS
Engine: 6.3L Megasquirted HSR
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Axle/Gears: 3.70 Posi 9 bolt
Originally Posted by Apeiron
The block is fine as long as it's in good shape. The heads and intake are garbage, though.
agreed. I got a pretty new set of Vortecs along with a Performer intake to match for about $450. You might be able to get those old heads to flow pretty good (Im a young gun, dont know too much about old head designs and mods), but I would try and get some Vortecs. They're cheap, and flow damn well for the price.

What kind of cam is the block machined for? Meaning roller tappet or flat tappet. The 650DP sounds good for a decent 350. For headers, depends on if your wanting LT or shorties. That would depend on your cam and head selection, wether your wanting high RPM power or low end torque.Give us a little more information on what you are wanting as far as motor performance, maybe we can help you out a little more
Old 09-12-2006, 01:13 PM
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Car: 83 Z-28
Engine: 305 Qjet
Transmission: 700r-4
Axle/Gears: 3.73
heads

on the heads, i know vortecs are good for the price everyone says that you just need a vortec intake. how about 083 heads i see them posted alot, what makes them so good. also what other heads are out there that would fit good. Im looking for most performance for the losest price. so if theres something i could find in a junk yard that would be great.
Old 09-12-2006, 01:50 PM
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Axle/Gears: 3.70 Posi 9 bolt
you could try and get a set of double hump heads. They were the shiznit back in the day. I just got rid of set for $30, needed a few rocker studs. What are the 083 heads, that number sounds familiar but Im not sure what they came off of.

You could more than likely find some Vortecs in a junkyard. Theres a DIY place down the road from me, they charge $40 for any set of iron heads, or $25 per head individually. Usually any old style head you find (i.e Double humps) you're gonna have to put a good bit of porting work into the runners (depending), and might have to put in hardend valve seats if the heads were made for leaded fuel. In the end you mighe be better off getting some Vortecs. Thats what I was gonna do with my double humps, but they needed so much work it was gonna cost me around $600 to get them the way I wanted them. Look on ebay for parts too dude, you would be amazed at what kinda deals you can find.
Old 09-12-2006, 05:22 PM
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Car: 83 Z-28
Engine: 305 Qjet
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Axle/Gears: 3.73
k

sounds good i'm still learing lots
Old 09-12-2006, 06:39 PM
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Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
083's came on late 3rd gen camaros with the 350.

Those 624s are typical lightweight smog heads. Poor perf, low CR. Port them for high flow? You break through the thin wall castings. Put 'em on your coffee table as an ice breaker. "Hey baby, like this head? So do I.... So do I..."

you're going to be getting a new intake either way, that torque 2 is junk. So a new intake for a "normal" SBC set of heads, or one for vortecs is pretty close, $ wise. Vortecs are just good bang/buck.
You can port up some 083's, or get some aftermarket heads, your call. How much you planning on spending on this?
Something like this? :
Heads $1000 (assembled)
intake $150
cam $300 (roller)
pushrods, rockers, lifters : $300


Then another $1500 on bottom end maybe.. Could be ~400HP if you do it right.
Old 09-13-2006, 08:23 AM
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Car: 83 Z-28
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Axle/Gears: 3.73
$750

I'm still in school and ill be using what I can, I'm looking at $750 finished job.

The dubble pump and intake i'm keeping to keep cost low.

For the heads someone that builds motors regually said to just get 305 heads and make the valves bigger. he said the 58cc 305ers would work fine. is it worth the extra money to get different heads, I have a set of 305's
Old 09-13-2006, 04:02 PM
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Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
$750 grand total will get you nowhere, that's a pipe dream. Even a basic bare bones stock rebuild (assuming bore and pistons) will run $1000 quite easily, once you want more than 180HP, cost goes up from there. Exhaust like headers, and a y-pipe and piping will run you close to $800 alone.
Welcome to the high perf world, get out your visa, first borns are also accepted


305 heads, depending on the casting #, will probably work fine. Which ones do you have? The stock ones off your '83 Z will work great.

What's the "dubble pump"?
I'd want to use the stock intake off the '83, rather than the Torquer 2.
Old 09-13-2006, 04:12 PM
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Car: 1986 Camaro Z28
Engine: 400
Transmission: T5
Axle/Gears: 10 bolt Posi 3.73
Found this off of a local site I visit.
Originally Posted by YAV8
Here is a motor I did for my nephew for his s-10 for CHEAP. $50 for a 79 350 out of my god childs demo car I also got a th-350 with it. We took the motor down and cleaned it inside and honed the cylinders. We got a set of rings rod and main bearings gasket set oil pump and timing chain. COMP PROD price $131.03 with tax. For the cam we went with a elgin cam # E903 kit cam springs locks seals ect. price with tax $136.45. We used the stock dished pistons because they were FREE, this motor was a old ladys driver then it was used by my god child for beating the hell out of it, manitowoc burnout contest and then for the DEMO durby at the fair and run hot till it stopped. Makes for a good seasoned two bolt bottom end. We also used all the tin that came on the engin. For the heads I used a set of 305s off of a four barrel motor #601 castings these are 55cc chambers with 1.84 in. and 1.5 ex. price $10-50 most people through them out. Head porting $100 intake was a stock factory 4 barrel intake with the factory q-jet. In SHAWN s-10 it went 14.20 at 98 mph about what a stock 5.0 would run. The PRICE $467.48. The 55cc chamber raised the compression to around 9.3 with the stock dished pistons and pulled well at 5600 rpms. For those that don't believe I will build the same motor for any one, just add $200 for labor and your parts.
Old 09-13-2006, 04:14 PM
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Car: 1986 Camaro Z28
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Axle/Gears: 10 bolt Posi 3.73
Another:
Originally Posted by YAV8
JUNKYARD JEWEL I came across this one in HOT ROD March 00 so its old but serves the purpose of a budget build. They started out with a long block from a junkyard for a $150. Anyone could find one for $200 in very good shape and to keep the story short after test 4 the results were very impressive. Using a comp ex-268 $169.99 cam and lifters and a set of untouched VORTEC $300 heads on a victor intake $000 I could not find the price for the vortec victor, I would use the newer RPM air gap $225.95 they made 394.6 HP at 5,700 and 400 lb-ft at 4,800 add $25.00 for a gasket set and you have $920.94. I still have some money left over from the build for a 750 cfm carb and a hei distributor. I know I had read some articals with a little over 400 hp but to stay on the low side for the douters we will only make 394HP. Hang onto the air gap, carb and HEI tomarrow we make BIG POWER AND TORQUE and under budget.
Old 09-13-2006, 04:19 PM
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Not a 350, but a build nonetheless (He ended up putting this in a mid 90's S10):

Originally Posted by camaro1
this is going to be my winter buget build,

ebay $350 gm 5.3L(326 ci) (converted to carb)
gm LS1 hot cam and valve springs
edelbrock carb intake, holley 750 or edelbrock 800 carb

whats is going in?? not sure yet
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