Your thoughts on this motor I got for my truck

[originalJD]

Ok. The supposed 327 that was in the 80 Camaro I got from the guy down the street is a 350. Here's where everything becomes complicated....

CASTING NUMBER OF THIS BLOCK....
3970010= 69-79/ 350cid/ 185-370hp/ 2or4 bolt/ Car, Truck, Vette
Also
3970010= 1968/ 327cid/ unrated,hp/ 2 bolt/ a=all

THE SUFFIX CODE OF THE BLOCK
V0214TJZ= Flint/ Feb.14th/ 1973/ 350cid/ 4bolt/ truck
________________________________________________________

CASTING NUMBER OF CYLINDER HEADS....
3927186= 68-69/ 302cid/ 2.02intake/ 1.6exhaust


This motor IS a 350 because the suffix code tells me it is. Although the heads are 202's they were built specifically for a 302cid. Now, My thoughts on this and who ever rebuilt this motor. I beleive the only number used for identifying this motor was the casting number. As a result of this, I have to wonder if a 327cid crank was used and if the cam size was choosen useing 327cid specs. Also, if this is the case, then what results can I expect when trying to get the motor running.

If you have any suggestions let me know.

Just thought you might find this interesting
James


Here's a couple of pics of it just for the heck of it......

[protrash64]

There were 2 main journal sizes for 327 cranks, and I dont think either of them matched a 350.....could be wrong. Heads were used for the bigger valves, but IMO none of this matters as long as the combo runs well together.

[originalJD]

Oh, and by the way. This motor does run. I got it running before I bought the car. It ran really rough and had a bad problem with fouling the plugs. I think it has to do with more than just the timing.

[protrash64]

Maybe its got a wicked cam to go with those heads.....big valves are for higher rpm flow.

How ya been, anyway....havent seen ya on here in awhile.

[Captainfab]

Not all 186 heads had 2.02 & 1.6's and came on 302's. They were also available with 1.94 & 1.5's. Either way they are not too bad a flowing head, and they had ~64cc chambers. The '68 & '69 327's were medium journal cranks, so they could be put into 350 blocks. The only way to know for sure exactly what you have is to pull the heads and measure the valves and the stroke of the piston. In light of your comment on how it ran, it may not be a bad idea to pull the heads anyway and inspect for possible wear or damage.

[originalJD]

Originally Posted by protrash64

Maybe its got a wicked cam to go with those heads.....big valves are for higher rpm flow.

How ya been, anyway....havent seen ya on here in awhile.

Actually I think it is heavily camed. But wont know till I open it up. And I'm doing well. I've been busy lately. I got back into school hoping to find a better job/career. I still check in from time to time. Its just that I havent had much time to chat. Things are starting to level out again though.

Originally Posted by Captainfab

Not all 186 heads had 2.02 & 1.6's and came on 302's. They were also available with 1.94 & 1.5's. Either way they are not too bad a flowing head, and they had ~64cc chambers. The '68 & '69 327's were medium journal cranks, so they could be put into 350 blocks. The only way to know for sure exactly what you have is to pull the heads and measure the valves and the stroke of the piston. In light of your comment on how it ran, it may not be a bad idea to pull the heads anyway and inspect for possible wear or damage.

Yes, these heads will flo nicely I'm sure. It's just that I've worked on many engines and have never had this kind of problem before. It kinda confused the hell outta me at first. I realize now that my best bet is to just open it all up and see what I got. Thanks

[chucks1967]

I say build a motor to match the heads!!! a 302 would be schweet! and they run great!

[originalJD]

Originally Posted by chucks1967

I say build a motor to match the heads!!! a 302 would be schweet! and they run great!

I am aware of all the many options I have as far as dropping a V8 in my truck. And your right. A 302 would be pretty cool as it would be somewhat different. But, I'm a financially challenged gearhead and have to use everything I have that is usable. Make the best of what I got. I know I can get this motor to run good. I just gotta tear into it and figure out what it is exactactly that I have.

Thanks for all the replies on this.

I have another question too. In my research for identifying this motor I have found that the sites I have vistited differ in their information pertaining the numbers I'm researching. So my question is, If you have a good site to go to for running the numbers on a SBC (block, heads, parts) then could you provided me a link to it?
Thanks again.

[Captainfab]

Here are a few that I use....

http://www.mortec.com
http://www.73-87.com
http://www.nastyz28.com

[ksbrktracer]

NastyZ28 has been very accurate for me, As stated they did build large journal 327's so the cranks will fit in the 010 casting block (350) , the 186 casting heads I have also seen on the 300hp 350's as oem as well as 69 302's The big difference in the heads would be 300hp didnt have screw in studs and guide plates and had 1.94 valves instead of 2.02 like the 302 engine and actually that is a very desirable head casting depending on the date codes for the restorers

[66shortwide]

It is all just guess work until you pull it apart and measure it out. Any 350 can be turned into a 327 by using a late(big journel) 327 crank or a 307 crank. I am assuming those are the double hump heads and where available on a number of different small blocks with the main difference being the 194 or 202 valves.

Unless you watch somebody assemble the motor then no one but the builder usually knows what is really in there. There are so many combinations available that you normally have to pull the heads to see what you have.

[jgh64pkup]

Originally Posted by chucks1967

I say build a motor to match the heads!!! a 302 would be schweet! and they run great!

if he was to build a 302 he would have to get some custom bearing spacers or a custom ground crank
302s were high winding and made a lot of power for their cubic inch but you know what they say
theres no replacement for displacement

[jgh64pkup]

why dont you just start it up on the stand make a stand for the radiator that sits in front of it
it should save you a lot of time than putting it in the camaro pulling it back out and putting it in your truck

[originalJD]

I have thought about starting it on the stand. But the stand I'm useing is cheap and needs alot of reinforcment to do so. That, and I would have to build a radiator stand and a gauge panal and buy more gauges. I do have plans to build a universal engine test stand. Just not right now (no money). Besides, it's not all that difficult to drop it down in the car and hook it up just to start it. The only thing that does make the task more difficult for me is the fact my work area is outside in dirt and gravel. Man, What I wouldn't give for just a simple small shop.

[jgh64pkup]

heres some pics of the one i made
if you was closer you could use it it has a spot for a battery radiator and ignition switch it needs a fuel cell

[kdrodworks316]

Its only money...right?

[TheDark1]

I punched in those numbers and found this on a F*rd web site??? The guy also said he called Crane Cams with the numbers and they gave him all the info he needed. There ya go. I hope this helps.


"On 2006-07-17 16:31, quickshift wrote:
CCH-304-2-NC.......hyd...rough idle'good mid-range......3000-6500....int,234@.050.....exh,244@.050...ADV duration.304/314..........110deg ctr line............556/579 lift....hope this helps, MARK. (pg 30,part#354561,1981 CRANE CAT.)"

[originalJD]

Originally Posted by TheDark1

I punched in those numbers and found this on a F*rd web site??? The guy also said he called Crane Cams with the numbers and they gave him all the info he needed. There ya go. I hope this helps.


"On 2006-07-17 16:31, quickshift wrote:
CCH-304-2-NC.......hyd...rough idle'good mid-range......3000-6500....int,234@.050.....exh,244@.050...ADV duration.304/314..........110deg ctr line............556/579 lift....hope this helps, MARK. (pg 30,part#354561,1981 CRANE CAT.)"

Yes. this does help very much. Thanks alot. Its my belief that at one time this motor was putting out some good power. I opened up the timing cover and discovered the single roller timing chain had way to much slack in it. But on my brief inspection on everything else. I see no excessive wear on anything else. I'm gonna dig into it alittle more this weekend.

[Captainfab]

Wow that's a thumpin' cam especially in a 327. Would definitely need a stall converter with that one. Too bad Crane is out of business, otherwise you could contact them for recomendations.

[protrash64]

Looks like I wasnt too far off the mark on this set-up.......

[originalJD]

Originally Posted by protrash64

Looks like I wasnt too far off the mark on this set-up.......

Yup. Pretty darn close.

[originalJD]

Originally Posted by Captainfab

Wow that's a thumpin' cam especially in a 327. Would definitely need a stall converter with that one. Too bad Crane is out of business, otherwise you could contact them for recomendations.

I have a buddy who is going to hook me up with some really cool software which will enable me to conduct vertual dyno runs on basically any setup I can think up. It would be nice to get actual professional feedback. But I think this is gonna do just fine. I mean at least I will know what setup will work or not. This can be very effective in giving you at least a ball park estimate of what to expect as long as all the right specs are put in. Thats why I'm researching everything in the motor. That, and I just want to know exactly what I have.

And yes. That cam is much bigger than I thought it might be.

I'm thinkin 3" pipes all the way back! The neighbors are gonna just LOVE me.

[Captainfab]

Originally Posted by originalJD

I have a buddy who is going to hook me up with some really cool software which will enable me to conduct vertual dyno runs on basically any setup I can think up. It would be nice to get actual professional feedback. But I think this is gonna do just fine. I mean at least I will know what setup will work or not. This can be very effective in giving you at least a ball park estimate of what to expect as long as all the right specs are put in. Thats why I'm researching everything in the motor. That, and I just want to know exactly what I have.

And yes. That cam is much bigger than I thought it might be.

I'm thinkin 3" pipes all the way back! The neighbors are gonna just LOVE me.

Is this software for doing virtual chassis dyno runs? Let us know how you like it

[TheDark1]

3" pipes are cool on a high winding v-8. I have true 3" duals thru Borla XR-1 race mufflers on a 300HP 350 and they sound really good at about 5000 rpm's. This thing should be a beast at 6500rpm. Gotta love the 327.

[TwiggyTheDrummer]

Looking good man. I'm ready to see it go in.