Hey! I've got a 1967 camaro w/ the unoriginal 327ci bored out .030. The engine has a complete roller rocker setup. Im not sure what the cam is, but i think its pretty mild. I have a holly 650 double pumper connected to an edelbrock aluminum intake. I have no idea what type of heads i have on it and dont even know how to find out.


I was thinking of stroking it out to get more power, but i dont know how. Do they make 327 stroker kits??? If they do, i could probobly do it w/ the help of my friend (rebuilt over 40 motors). Also, how big would the engine be if they do make kits for it, and what would an estimated price be???


The last thing is that my brother has a 1970 Mach 1 mustang w/ over 425hp. I estimate my camaro's engine to be somewhere in the 350 range. I'd really like to get above 400, but i have severely limited cash (im only 15 and am $3k in the hole b/c of just buying the car). I think i could squeeze out a max of $1,000 for the upgrades. Anyone have an idea of what i could do to get more power out of it?!?!?!


Real friends dont let freinds drive fords! graemlins/beers.gif

Headers / dual exhaust and a good solid FT cam would be your best bang for the buck if you are bent on spending that $1k on going faster.

Personally, I'd pay the car off first.

I have some headers, but they're in pretty rough shape. They are very rusty on the exterior, but seem to be getting the job done. I also have rusty 2 1/2" dual exhaust. I plan on putting some cutouts on it soon

Eric- Have you ever heard of a stroker kit for a 327? Would be news to me if it existed. Would think that it would just be a 350 crank bringing the ci up to 350.

Yes, they do make a 383 kit for the small journal 327. If it's large journal it should use the same kit as 350's.

http://www.speedomotive.com/327%20SMALL%20JOURNAL%20TO%20383%20CID.htm

[ 12-12-2004, 09:40 PM: Message edited by: TJS69 ]

i wonder how many 327's running around out there are actually 350's or -gasp- 305's? hell, i've seen a few 283's and a couple of 307's being passed off as 327's.
it might be a good idea to find out what you are starting out with. if it is a 327, it might be a medium journal 68 block- in which case, a 350 crank drops right in with matching pistons.
if it's an older 327- you could make a high rpm screamer 302 with a 283 crank and custom pistons with a solid lifter cam..
there are so many options in the wonderful world of Chevy parts interchangability..

yes, lets find out for sure what you have now.

On the front pass. side of the block, if it's still there, is a series of stamped #'s and letters, including a 2 letter code for engine type, partial vin of the car it was originally installed in, and the assembly date.

On the back, drivers side is the sasting #, 7 digits cast into the iron. With the hood open, look thru the gap between the hood and the firewall, inboard of the wiper motor, you'll need a good flashlight.

Finally, the head casting # is between the valves for the leftmost and next cylinder, another 7 digit # cast into the iron. Pull the drivers side valve cover, will be between the second and third rocker arm from the front.

Alright, got those #'s for ya.


On the fron of the block, it reads:
18C139268 T062IHH

Behind the block, its:
GM
3914660

And the cylinder #'s are (drivers side):
3947041
F10 8

And there's a big GM12 in the driver side cylinder...dont know if ya need that or not

Mortec has this to say about those heads.

69-70...302/350......"Right angle" casting identifier, 64cc chamber, accessory holes, good HP head

Anyone care to splain what "Right angle" means.

Standard double-hump heads but with bolt holes on the ends is all.. Check and see if they are big or medium valved too....

BUT I can't find "IHH", probably b/c my book isn't new enough??

pdq67

how do i check the valve size?

Yeah, but at least they have acc. holes.

Block casting # shows 1968 327 that was assembled at Tonawanda, NY on June 21 with the HH code. There is no IHH code the I is a 1, meaning TO62I= June 21 The HH code was used in 1965, 1966 and 1969 for 327 and 350's The heads were cast June 10 of 68. They are shown as 69-70 heads so this could be an early 69 327 or a late 68 327 or an early 69 350. You need to get the casting date off the block. It is on the back area just across from the casting number ie the pass side of the rear of the block. That will give some idea as to when the block was cast. It should be a letter and 3 or 4 numbers. June was about the change over time when the next model year stuff started into production so there are lots of cases of blocks and heads the could be correct for both as production wound down on one model year and ramped up on the next. You really won't know for sure if it is a 327 or a 350.

That makes it a large journal motor, right?

Anyone care to splain what "Right angle" means.Triangular shape casting mark on front of head as opposed to the double hump. A good flowing head from my data.

[ 12-14-2004, 01:32 PM: Message edited by: sicsD8 ]

Gotcha, a right triangle on the base of the rectangle instead of the pointed triangle on the rectangle base that indicates the old, "power-pack" heads! They are still "double-hump" design heads tho...

Missed this b/c I was thinking about plug angles and such is all..

pdq67

so according to this website http://www.angelfire.com/tx5/randysresume/Headguide.html , which head woudl i have??? (A-P)

I thought the casting ID boss looked like "I" but with a triangle on it that looked like "M"?

But I've been wrong before AND I sure don't wanta have ta dig my -041 heads outta my head stack tonight to verify it...

I thought I had one on my 406, but it's a -492...

Man, I'm gettin' ta where I can't keep my stuff straight???????

pdq67

are the 041's rare or worth any more then normal heads??

Imho, no.. They just have the bolt holes on the ends where most double-humpers don't is all unless I'm missing something..

pdq67

After looking into them a little more, they were assembled on 69-70 300hp 350's and possibly 69 302's. 1.94-1.5 valves (I believe the 041x's had 2.02 valves.) I would list them in the top ten factory performance SBC heads. The fact they were cast with accessory holes where most early double humps weren't, makes them more desirable.

The 041 heads were a 350/300hp and 255hp head, they did not come on any 302 engine. They are 1.94 heads and are identical to the 1.94 version of the 186 head that had the double hump casting symbol.

Jonesy- I only found the 302 reference in one of my files and always thought that was probably incorrect, but I have never seen these heads in a 255hp application, in fact, I thought the heads and cam were the difference between the 255 and 300 hp motors in 69-70. Someone correct me if I'm wrong. :confused:

1969 255 hp engines used "441" 76cc heads. 300 hp engines used "041" 64cc heads. Cams were the same.

I thought so! Thanks.

Alright, there are my thoughts. Since i turn 16 in Feb., and get my license as soon as winter somes next year, I thought i could take the engine out, give it a nice dress up kit, and try to sell it on ebay. Maybe get some crome peaces and a polished intake. I found a 383ci roller engine (estimated 425hp) for $2,800. Think i could get at least $2,500 out of mine?!?!?!

I know the engines on ebay are going for a little bit less then mine, but I was thinking of putting it in the local classifieds. Or should i put it on the internet too?

Back when I was 16, (1980), I had the same delimma. I bought an old 275HP 327, took it down to the bare block, then off to the machine shop. Put flat tops in it, rebuilt the heads with a bowl blend job,cast crank, cam with .480" lift, 108 LC, 230 @ .050, Edelbrock Torker intake, a great Mallory dual point ( custom curved that WORKED!), Turbo 400 with 3000 stall...not too much money, but great fun. So I guess what I am saying is why not keep it running, and build up another engine as time and $$$ allows. I am not sure you will get much $$$ for what you have, especially if you are not sure what it is IMO. These little engines can be made to run very well. As I always say to those just getting started, get some books, search old performance posts, and find a local mentor to help you with the little stuff to avoid beginers errors plus just good old fellowship. Where are you located?

Cheers,

Rob
-still learnin

Im in State College PA. My parents are friends w/ some guys that have rebuilt some engines before. I just dont know what parts to put into it to get it up to decient HP