Cam Replacement

[Camaro_nut2001]

Originally Posted by faribran

i have 062 Vortecs on my 283.. it will rev with the best of em... i have 1.6 roller rockers...(i drilled out the pushrod slots).. my son has a 350 roller engine with Vortec heads... there is no comparison...his had a stock cam etc.. and was much stronger than the 283......... if the question is 'will the heads fit the 283"?, yes they will, but i cant see a great power gain over the stock small valve heads.
my son has since added a COMP cams roller with more gonads........ its crazy powerful now.

Now that is a new one on me. Are you running a stock bore? I live to learn, lol.

[GASoline71]

062's are 1998 truck heads... I'm curious too... how you got them to work on a bore that small.

Gary

[OhOneWS6]

If you are going back with a non roller cam be sure to use oil with ZDDP. Valvoline VR1 is usually the easiest to find at the local part stores.

[huero]

Here is my worthless 2 cents.
Buy an edelbrock performer cam and call it a day.
You can not make power with a 283 without doing tons of work to it. More work and $ than its worth.
A 283 is not a bad engine just dont expect it to run like a 383.
Leave the stock heads and save up for a nice set when the funds allow to put on that 350 you got.
Also, 3:08 gears are not bad. They are not 3.73 or 4.11's but they are a decent gear especially on a daily driver that does not have an overdrive transmission. Leave the 3:08's and save your hard earned cash.
Just my 2 cent's,
huero.

[VDOG]

Thanks Huero.

I thought about the edelbrock cam but I figured it was going to run like the carb, not to impressive but will still work. Im not trying to get 1/4 mile time out this engine, just want it to perform a lil bit better than stock.

[huero]

The cam is a decent mild cam. Great for a daily driver.
Don't expect huge power increases with aftermarket parts when you are dealing with 283 ci's. It is just not going to happen.
If your goal is a nice daily driver a 283, perfromer cam, carb, headers, with the 3:08's is a nice combo.
You are almost there.
What transmission are you running?

[GASoline71]

Originally Posted by huero

If your goal is a nice daily driver a 283, perfromer cam, carb, headers, with the 3:08's is a nice combo.

That sums it up nicely.

Gary

[VDOG]

Originally Posted by huero

The cam is a decent mild cam. Great for a daily driver.
Don't expect huge power increases with aftermarket parts when you are dealing with 283 ci's. It is just not going to happen.
If your goal is a nice daily driver a 283, perfromer cam, carb, headers, with the 3:08's is a nice combo.
You are almost there.
What transmission are you running?

Im using a TH350. So what are these guys using when they say there getting so much power out of a 283? Not that im trying to build mine, but im curioous to know what they are using.

[evilways]

TH350 here, though I don't know what my rear ratio is?

[huero]

Originally Posted by VDOG

Im using a TH350. So what are these guys using when they say there getting so much power out of a 283? Not that im trying to build mine, but im curioous to know what they are using.

Ask for some dyno sheets first then ask what they did to get great power out of a 283.
I'm sure it's possible but, very expensive to try and make.
With all the engines available today why someone would grab a 283 to make power does not make any sense.
Remember, there is no replacement for displacement.
It will be alot cheaper to get 350 horsepower out of a 350 ci engine than it would be to get 350 hp out of a 250 ci engine.

[umwtnt]

Why not go on powerblock and see what they did to the 283 they rebuild on one of the horsepower/truck shows. I believe they rebuild the 283 for the 66? chevy pickup they had in the past season or two. They appeared to be happy with the power. Just a thought.

http://www.powerblocktv.com/site3/in...er-episodes?ep...
Hp2008-07 show
Good luck

[huero]

Quick facts
http://www.carcraft.com/techarticles...evy/index.html

[gonzo6869]

Looks like its coming along pretty good, at this pace you'll be able to make it to Pomona, no problem.

[Davetopay]

Originally Posted by umwtnt

Why not go on powerblock and see what they did to the 283 they rebuild on one of the horsepower/truck shows. I believe they rebuild the 283 for the 66? chevy pickup they had in the past season or two. They appeared to be happy with the power. Just a thought.

http://www.powerblocktv.com/site3/in...er-episodes?ep...
Hp2008-07 show
Good luck

I'd like to see this, but it appears you can't watch it online.

[umwtnt]

you can go to the horsepower store and purchased the episode on DVD for $5.95 or I also found it thru amazom and you tube for sale for less money.

[faribran]

my 283 is .030 over

[evilways]

Faribran, By chance have you had your engine dyno'd?

[VDOG]

I remember that Horsepower show, they built the 283 for the Trucks Show.
Its like they showed it one time, cause I never saw it again. Cant view it online but I remember they got about 270 hp from the engine. Just dont know whats in it.

[evilways]

Originally Posted by VDOG

I remember that Horsepower show, they built the 283 for the Trucks Show.
Its like they showed it one time, cause I never saw it again. Cant view it online but I remember they got about 270 hp from the engine. Just dont know whats in it.

I didn’t see that episode, I take it was a budget build?

[C20-67_N_MO]

Originally Posted by evilways

I didn’t see that episode, I take it was a budget build?

Yup!

I was built on a budget for sure.

Very modest 283 build.

[VDOG]

So heres what came out, a Isky Megacam 270 Hyd. The stats listed on the site said I should have 9 to 10:5 compression and a 3:73 to 4:11 rearend, stock converter, auto or manual trans. This is the cam listed for 283 and 327 engines if you have this setup. I know my compression is in the 9's but I dont have the gears. So it will be a step down, probably a 260 Hyd is what they list for 3:08 gears.

[C20-67_N_MO]

So what cam are you going with now?

[LONGHAIR]

So did you determine that you really did have a lobe go flat?

If so, I wouldn't "just shove a cam back in and call it good". The metal particles are still in there. The chances of another failure are much greater that way.

[spinem]

Originally Posted by VDOG

Ok due to the fact that im short on money because of all the rain here in Cali, under my house took on water so I cant afford to work on my 350.
So im going to replace my cam on the 283 to keep it running for the time being. I will post picture as I go, if any of you see me doing something wrong or have advice jump in and let me know. Thanks

rollers!? didnt see that comming!!! looks sweett!!!

[GASWAGON]

Originally Posted by LONGHAIR

So did you determine that you really did have a lobe go flat?

If so, I wouldn't "just shove a cam back in and call it good". The metal particles are still in there. The chances of another failure are much greater that way.

X 2 better off to do it rite the first time. I would use a comp cam part#12-300-4. Great cam for your current set up and will really make a noticable improvement. I have used this cam a couple of times in customers projects and had very good feedback. If it did really lose a lobe you need to find the cause of the problem and fix it also. Just my 2Cts